2024-03-29T09:35:59Z
https://www.ambi-agua.net/seer/index.php/index/oai
oai:ojs.unitau:article/1
2024-03-29T09:35:58Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/1
2024-03-29T09:35:58Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 2 No. 1 (2007); 30-43
Mapping of Permanent Preservation Areas (PPA) of The Municipal District of Santo Antônio do Pinhal, SP: Base for Environmental Preservation
Avaliado por Pares
Catelani, Celso de Souza; UNITAU
Batista, Getulio Teixeira; Universidade de Taubaté
2007-06-25 13:38:33
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/1
pt
The mapping of the Permanent Preservation Areas (PPAs) of the municipal district of Santo Antônio do Pinhal, SP, located in an area of great real estate interest in the Mantiqueira Moutains of São Paulo, neighbor of the touristic municipal district of Campos de Jordão, SP, became necessary. The need for producing cartographic documents is to support environmental authorities to establish plans for the preservation of these areas, especially the Permanent Preservation Areas (PPA) established by the Law 4,771/65 and regulated by the Resolutions CONAMA 302 and 303/2002. In that context, this work had as objective, the delimitation of permanent preservation areas (PPA) at the 1:50,000 scale. The analysis and results of the mapping of the permanent preservation areas of the municipal district of Santo Antônio do Pinhal revealed two situations that deserve attention: first, the total area of PPAs corresponds to an area of 7,218ha which is equivalent to 52.2% of the total area of the municipal district. This is very positive for the environmental point of view, however extremely restrictive for land use. The occurrence of PPAs in the class of “Top of Hills” reaches 4,227ha which correspond to 30.7% of the total area of the municipal district. This demonstrates the restrictive character of land use of that PPA class, especially in areas with undulated relief as it is the case of the geomorphological domain known as “Mar de Morros” where the study area is located.
oai:ojs.unitau:article/12
2024-03-29T09:35:58Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/12
2024-03-29T09:35:58Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 1 No. 1 (2006); 48-60
Irrigation and nitrogen effects on wheat grain yield
Avaliado por Pares
Rudorff, Bernardo Friedrich Theodor; INPE
Moreira, Mauricio Alves; INPE
Targa, Marcelo do Santos; UNITAU
Freitas, José Guilherme
2007-06-01 09:27:35
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/12
es
Two agronomic experiments with wheat crop were conducted during the period of May through October of 1999 and 2000 at the experimental site of the University of Taubaté, Taubaté, São Paulo State, Brazil. The objective of this work was to evaluate the effect of different levels of irrigation and nitrogen on grain yield of two wheat cultivars. The work also intended to present the feasibility of this agriculture activity during the winter crop season in the Paraíba Valley region of São Paulo State. The experimental design allowed simulating different wheat crop growth conditions in the field in terms of the interactions among irrigation, cultivar and nitrogen factors. Results showed no significant interaction among the three factors for the analyzed agronomic characteristics. Interaction of irrigation and nitrogen, for grain yield and biomass, was observed only in 1999. Soil fertility was improved in 2000 with a positive effect on grain yield. Irrigation had a significant impact on grain yield indicating that wheat crop needs water supply for a profitable production in the Paraíba Valley region. Water balance is recommended for efficient irrigation.
oai:ojs.unitau:article/13
2024-03-29T09:35:58Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/13
2024-03-29T09:35:58Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 1 No. 1 (2006); 37-47
Near real time detection of deforestation in the Brazilian Amazon using MODIS imagery
Avaliado por Pares
Shimabukuro, Yosio; Instituto Nacional de Pesquisas Espaciais (INPE), Brasil
Duarte, Valdete; INPE
Anderson, Liana
Valeriano, Dalton; INPE
Arai, Egídio; INPE
Freitas, Ramon; INPE
Rudorff, Bernardo Friedrich; INPE
Moreira, Maurício; INPE
2007-06-01 09:19:29
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/13
en
The objective of this paper is to provide near real time information about deforestation detection (DETER) in the entire Brazilian Amazon using MODIS high temporal resolution images. It is part of the operational deforestation monitoring project to estimate the annual deforestation rate in the Brazilian Amazon (PRODES). A rapid deforestation detection method was designed to support land use policies in this region. In order to evaluate the proposed method a test site was selected covering a Landsat ETM+ scene (227/68) located in Mato Grosso State. For this purpose a multitemporal series of MODIS surface reflectance images (MOD09) and the corresponding ETM+ images from June to October 2002 were analyzed. It was found that small deforested areas (lower than 15 ha) were detected by MODIS images with lower accuracy when compared with ETM+ images. As the deforested areas increase MODIS and ETM+ results tend to converge. This procedure showed to be adequate to operationally detect and monitor deforested areas and has been used since 2004 as part of a government plan to control the Amazon deforestation.
oai:ojs.unitau:article/14
2024-03-29T09:35:58Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/14
2024-03-29T09:35:58Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 1 No. 1 (2006); 21-36
Mapping the Hydrologic Response of the Brazilian hydrologic regions and their variability associated with El Niño and La Niña
Avaliado por Pares
Soares, João Vianei; Instituto Nacional de Pesquisas Espaciais (INPE), Brasil
Carriello, Felix; INPE
Ferreira, Nelson Jesus; INPE/CPTEC
Rennó, Camilo Daleles; INPE
2007-06-01 09:00:31
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/14
es
Brazil has a wide-ranging network of rivers flowing northeast, east, north or southward. The water running off these basins may vary a great deal with climate and spatial distribution of rainfall rates. This paper analyzes the Hydrological Response (HR) of the eight major Brazilian river basins and sub-basins for a period matching 30 years of data, from 1970 to 2000. HR refers to river flow normalized by rainfall over the basin. The atmospheric forcing strongly modulates the HR at synoptic scales. At local scales, geology and land use also play an important role. The average spatial HR reached values as high as 0.7 in the west of Brazilian Amazon. We estimated “average” to “high” values in central and western Amazon (0.3-0.5) and “average” in the center-south and southeast (around 0.3). We found HR in the northeast semi-arid of Brazil classified as “very low” (close to 0.1). Brazil has climates changing from humid and rainy to semi-arid regions. Besides analyzing the regional distribution of the HR across the country, we explored the effects of the interanual variability associated with ENSO and La Niña. We used the normal climate average over thirty years as the standard for comparing the differences associated with the two anomalies. We noticed that the subbasins of the southern regions showed positive variations in water production while the Brazilian Amazon basin showed no response. Also, the areas of lower HR in the northeast Brazil were further reduced.
oai:ojs.unitau:article/15
2024-03-29T09:35:58Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/15
2024-03-29T09:35:58Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 1 No. 1 (2006); 72-83
Spatial evolution of irrigated areas using remote sensing – the Medium Paraíba do Sul Valley, Southeast of Brazil
Avaliado por Pares
Júnior, Nilton S. Paes; Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP), Brasil.
Simões, Silvio Jorge Coelho; Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP), Brasil.
2007-06-01 11:28:02
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/15
es
This study intends to evaluate the spatial analysis of the rice irrigation areas in the Medium Paraíba do Sul Valley for the period comprised between 1988 and 2003. Rice irrigation is a historical activity in Paraiba Valley being responsible for 51% of the water supply in this region. Supervised Classification was made for the multitemporal interpretation of remote sensing data (Landsat TM) using the software SPRING, ver 3.0. The analysis encompassed four regions (Guaratinguetá, Tremembé, Pindamonhagaba e Lorena-Canas), which represent 82% of the total irrigated area in the Paraiba Valley. The results show a significant decrease in irrigation area in Lorena-Canas (32.4%) and Pindamonhangaba (22.7%) and a smaller one in Tremebé region (6.4%). In contrast, Guaratinguetá region has presented an increase in irrigation area (14.2%). For the four regions analyzed, a reduction of 11.8% in irrigated area has been observed. Unlike other regions of São Paulo State, the irrigation activity in the Paraíba Valley is decreasing notably due to rapid urbanization and mineral extraction near, or on alluvial plan, contributing to the reduction of irrigated rice cultivation and elimination of wetlands ecosystems.
oai:ojs.unitau:article/16
2024-03-29T09:35:58Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/16
2024-03-29T09:35:58Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 1 No. 1 (2006); 61-71
Climate assessment and trend analysis in air temperature and precipitation time series in Taubaté (SP)
Avaliado por Pares
Folhes, Marcelo Theophilo; INPE
Fisch, Gilberto
2007-06-01 09:38:24
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/16
es
The main objectives of this paper are to present the temporal climatic characteristics of precipitation and air temperature in Taubaté (SP), in addition to the characterization of the rainy season. The time trend of the climatic elements were studied using the non parametric seasonal Mann-Kendall test. Statistically, no significant average changes in precipitation were detected although a relatively large natural year-to-year variability there exits. A short-term increasing trend from 1983 to 2005 have been observed in November precipitation, a decreasing trend in the amount of the April precipitation and a decreasing trend in the number of dry days per year. This study suggests that the onset of the Taubaté's rainy season occurs in mid-September and the end is in April.
oai:ojs.unitau:article/17
2024-03-29T09:35:58Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/17
2024-03-29T09:35:58Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 1 No. 1 (2006); 6-20
Relationship Between Sea Surface Temperature Variation Obtained from AVHRR Imagery and Lobster Catching (Panulirus argus) in Cuban Waters (1997-2004)
Avaliado por Pares
Somoza, Regla Duthit; Centro de Investigaciones Pesqueras
Kampel, Milton; INPE
Souza, Ronald Buss; INPE
Cobas, Susana; Centro de Investigaciones Pesqueras
2007-06-01 08:46:16
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/17
es
The spatial and temporal variability of sea surface temperature (SST) for the Cuban shelf waters was obtained, and the relationship of these with lobster catches in the period from January/1997-December/2004 was analyzed. The data from this environmental variable sensor were obtained from Advanced Very High Resolution Radiometer (AVHRR). The periodicity of the images and data capture by fishing was monthly. Ocean waters and shelf have a seasonal pattern to the SST, reaching the highest in August (29.5 ° C) and the lowest in February (26 ° C). The extreme values recorded were recorded in August 1998 with anomalies of 1.9 ° C and -0.9 ° C in February 2001. During the winter period (Nov-Mar) it was possible to find a general pattern of water circulation in the area by observing the images; during the summer (May-October) this is not observed. Low correlation between SST anomalies and the catch of lobsters by fishing was observed. The best correlation coefficients (0.48) were found to the west of the island, with four years of time lag.
oai:ojs.unitau:article/22
2024-03-29T09:35:58Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/22
2024-03-29T09:35:58Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 1 No. 2 (2006); 15-27
SAR data for the analysis of forest features: current Brazilian experiences
Avaliado por Pares
dos Santos, João Roberto; INPE
Gama, Fábio Furlan; INPE
Gonçalves, Fábio Guimarães; INPE
2007-06-06 09:50:12
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/22
en
This article presents some applications of airborne polarimetric and/or interferometric microwave data to improve the knowledge of forest structures. Three airborne SAR (Synthetic Aperture Radar) experiments were done in the Amazon tropical forest: (a) to study the spatial distribution of very large trees (VLTs) in the primary forest using local maximum filtering and a series of Markov processes; (b) to model the estimation of biomass variations in primary and secondary forests; (c) to analyze the retrieval timber volume over selective logging areas. Another experiment (d) was to investigate the relation among SAR data and the volumetric configuration in stands of Eucalyptus sp done by an airborne SAR imaging mission in SE-Brazil. To perform the objectives (b), (c) and (d) we carry out regression techniques, using variables got from multipolarimetric and/or interferometric SAR attributes and biophysical parameters from the forest cover. All data from the experiments were calibrated radiometrically to extract information during digital processing, besides an exhaustive field survey which was done simultaneously to SAR imaging, to know the physiognomy/structure of forest typology and to support the models produced for each case. The results of this series of experiments show advances at the techniques to treat SAR data, focusing on models of stand architecture and forest stock density. This will be helpful to increase the regional inventory and surveying procedures of forest conversion in the Brazilian territory in the near future.
oai:ojs.unitau:article/23
2024-03-29T09:35:58Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/23
2024-03-29T09:35:58Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 1 No. 2 (2006); 28-38
Soybean grain yield monitoring and estimation aided by the mesoscale ETA Weather Forecast model
Avaliado por Pares
Rizzi, Rodrigo; UFPEL
Theodor, Bernardo Friedrich; INPE
de Freitas, Ramon Morais
Fontana, Denise Cybis; UFRGS
2007-06-06 09:50:42
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/23
pt
The objective of this work was to monitor and estimate soybean grain yield based on an agronomical model coupled to a Geographic Information System (GIS) using meteorological data generated by the Eta mesoscale weather forecast model. The agronomic model produced bi-weekly penalizing indices maps and soybean grain yield estimates for the States of Mato Grosso do Sul, Paraná and São Paulo, Brazil, during crop year 2004/05. Result showed that meteorological data from the Eta model, incorporated in an agronomic model, allowed monitoring, in time and space, the soybean crop. In addition, the meteorological data from Eta model are provided in almost real time allowing a quantitative and quick evaluation of weather conditions for soybean production.
oai:ojs.unitau:article/24
2024-03-29T09:35:58Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/24
2024-03-29T09:35:58Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 1 No. 2 (2006); 39-51
Bark volume and weight modeling of Mimosa scabrella Bentham trees in the Curitiba metropolitan region
Avaliado por Pares
Machado, Sebastião do Amaral; Universidade Federal do Paraná (UFPR), Brasil.
Rodrigues da Silva, Luís César; UFPR
Urbano, Edilson; UFPR
Figura, Marco Aurélio
Téo, Saulo Jorge
Stolle, Lorena
2007-06-06 09:50:58
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/24
pt
The objective of this paper was to model bark volume and weight of Mimosa scabrella Bentham trees. To achieve this objective 440 trees were cubed by the Hohenadl’s method using 10 sections. These trees had ages ranging from 6 to 17 years, and were located in several counties inside the Curitiba (Parana) metropolitan region. The stems from 194 trees were weighed in the field. Samples of bark from these trees were collected, weighed in the field (green weight) and brought to the laboratory for drying until constant weight (dry weight); thus it was calculated the relationship dry weight/green weight of the sample and extrapolation for the whole stem. For the modeling, several mathematical models from the literature for estimating dry weight of Acacia mearnsii were selected. New models based on the forward’s method were also built. Twenty different models were adjusted using the 1/d²h to weight the arithmetic models with two entries and 1/d² for the models with single entry. The best models for each case were selected basing on the adjusted coefficient of determination (R²aj), standard error of estimate in percentage (syx %) and on the residual graphic distribution. In general, the new models built with variables most correlated with the respective independent variables were the most precise. The best fitting were obtained for bark volume and green weight, with syx% ranging from 15 to 18%, and R²aj from 0.96 to 0.98. The best equation for estimating bark volume in percentage presented R²aj = 0.47 and syx% = 17%.The best models for estimating bark dry weight presented higher syx% and lower R²aj than those obtained for green weight.
oai:ojs.unitau:article/25
2024-03-29T09:35:58Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/25
2024-03-29T09:35:58Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 1 No. 2 (2006); 52-64
Evaluation of MODIS vegetation indices for detecting deforestation in Amazonia
Avaliado por Pares
Correia, Antonio Henrique
Formaggio, Antonio Roberto; INPE
Shimabukuro, Yosio Edemir
Duarte, Valdete
2007-06-06 09:51:30
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/25
pt
Vegetation indices (NDVI and EVI) obtained from MODIS products (250 m and 500m, surface reflectance) were evaluated in relation to the possibility of detecting and monitoring deforestation areas in Amazonia. A new vegetation index, the DNRG (Normalized Difference between Red and Green spectral bands), was proposed with the same objective. The radiometric quality of the multi-date MODIS products was evaluated to verify the possibility of using vegetation index to generate deforestation maps. The internal accuracy of multi-date composites were evaluated providing a value of positional error less than 1 pixel (< 250 m) and, consequently geometric corrections were not necessary. The potential of surface reflectance MODIS products was evaluated in the region of Terra do Meio (Pará State, Brazil, between latitudes 06?00’S to 08?00’S and longitudes 51?00’W to 54?00’W), using the Euclidian minimum distance supervised algorithm of classification. Global accuracies above 87% were obtained demonstrating a good potential for using these products in systems for deforestation detection in near real time.
oai:ojs.unitau:article/26
2024-03-29T09:35:58Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/26
2024-03-29T09:35:58Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 1 No. 2 (2006); 65-79
Spectral mixture analysis for water quality assessment over the Amazon floodplain using Hyperion/EO-1 images
Avaliado por Pares
Rudorff, Conrado de Moraes; INPE
Leão de Moraes Novo, Evlyn Márcia; INPE
Galvão, Lênio Soares; INPE
2007-06-06 09:51:53
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/26
en
Water composition undergoes complex spatial and temporal variations throughout the central Amazon floodplain. This study analyzed the spectral mixtures of the optically active substances (OASs) in water with spaceborne hyperspectral images. The test site was located upstream the confluence of Amazon (white water) and Tapajós (clear-water) rivers, where two Hyperion images were acquired from the Earth Observing One (EO-1) satellite. The first image was acquired on September 16, 2001, during the falling water period of the Amazon River. The second image was acquired on June 23, 2005, at the end of the high water period. The images were pre-processed to remove stripes of anomalous pixels, convert radiance-calibrated data to surface reflectance, mask land, clouds and macrophytes targets, and spectral subset the data within the range of 457-885nm. A sequential procedure with the techniques Minimum Noise Fraction (MNF), Pixel Purity Index (PPI) and n-dimensional visualization of the MNF feature space was employed to select end-members from both images. A single set of end-members was gathered to represent the following spectrally unique OASs: clear-water; dissolved organic matter; suspended sediments; and phytoplankton. The Linear Spectral Unmixing algorithm was applied to each Hyperion image in order to map the spatial distribution of these constituents, in terms of sub-pixel fractional abundances. Results showed three patterns of changes in the water quality from high to falling flood periods: decrease of suspended inorganic matter concentration in the Amazon River; increase of suspended inorganic matter and phytoplankton concentrations in varzea lakes; and increase of phytoplankton concentration in the Tapajós River.
oai:ojs.unitau:article/27
2024-03-29T09:35:58Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/27
2024-03-29T09:35:58Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 1 No. 2 (2006); 80-89
Performance evaluation of different classifiers (Isoseg, Bhattacharyya, Maxver e Maxver-ICM), using CCD/CBERS-1 and ETM+/Landsat-7 fused images
Avaliado por Pares
Góes, Camila Aguirre; INPE
de Mello Filho, Wilson Lins; IEAPM
Carvalho, Melissa; USP
2007-06-06 09:52:14
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/27
pt
The aim of this study was to compare the performance of image classifiers (Isoseg, Bhattacharyya, Maxver and Maxver-ICM) based on an accuracy analysis (set percentage, area determination and Kappa coefficient), using as ground truth an edited thematic map. For this, pre-processing techniques (atmospheric, geometric and radiometric corrections), contrast enhancement (IHS data fusion and principal component analysis) and classification of CCD/CBERS-1 and ETM+/Landsat-7 images were done. Amongst all classifiers tested, Isoseg and Bhattacharyya presented best performance for the studied classes and the study area. It is anticipated that these results are relevant to environmental analyses based on orbital satellite data.
oai:ojs.unitau:article/28
2024-03-29T09:35:58Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/28
2024-03-29T09:35:58Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 2 No. 2 (2007); 88-102
Analysis of optical proprieties of the water reservoir Rodolfo Costa e Silva – Itaara, RS, Brazil, with field spectral data and orbital multispectral images
Avaliado por Pares
Breunig, Fábio Marcelo; SERE - INPE
Wachholz, Flávio; UFSM
Pereira Filho, Waterloo; UFSM
Rudorff, Conrado de Moraes; INPE
2007-08-31 08:39:16
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/28
pt
An evaluation of the discrimination of water classes using continuum removal technique applied over spectral data obtained in field and multispectral images classification is presented. The study area was the Rodolfo Costa e Silva water reservoir, located in central region of Rio Grande do Sul (RS) State, in Southern region of Brazil. The methodology was based on in situ data collection of: total suspended solids, chlorophyll (a, b and c), water transparency, and bidirectional spectral reflectance. These data were collected in 21 point (samples) in May 16, 2006. The continuum removal technique was applied on the spectral data over 4 absorption bands: 400-550nm, 610-640nm, 650-680nm e 580-700nm. The continuum removal parameters analyzed for each absorption band were: depth, area and width. The multispectral images used were CBERS-2/CCD and Landsat 5/TM. The images were acquired in a date nearest to field work and with appropriate weather conditions. These images were corrected by removing atmospheric effects and then classified. According to the results obtained from the continuum removal technique, it was verified that band depth, area and width did not present a good potential to separate different water classes. Digital classification results did not show significant correlations with the limnological parameters collected in field and, therefore, could not be used to characterize spectrally different water classes or compartments. The main problem of establishing relationships between spectral reflectance and water quality parameters was due to the low variability of optical components in the water of Rodolfo Costa e Silva Reservoir. In this case the spectral analyses (considering both techniques) were not sensitive to the relative small variations observed in field data.
oai:ojs.unitau:article/34
2024-03-29T09:35:58Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/34
2024-03-29T09:35:58Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 2 No. 1 (2007); 5-20
Conservation challenge at the agricultural frontier: deforestation, fire, and land use dynamics in Mato Grosso
Avaliado por Pares
Morton, Douglas C.; University of Maryland, Department of Geography
Shimabukuro, Yosio Edemir; INPE
Rudorff, Bernardo Friedrich Theodor; INPE
Lima, André; INPE
Freitas, Ramon M.; INPE
DeFries, Ruth S.; University of Maryland, Department of Geography
2007-06-25 13:39:11
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/34
pt
Achieving conservation objectives within the rapidly changing agricultural frontier in Mato Grosso State requires tradeoffs between production and preservation. We provide a description of deforestation, fire, and land use dynamics during 2000-2005 to consider a range of strategies for conservation planning. Long-term conservation of Cerrado, transition forest, and Amazon biomes in the state can benefit from direct consideration of landscape structure, duration of post-clearing land use, and the mosaic of land uses surrounding potential conservation corridors or reserve areas. Although the creation of new protected areas may not be feasible, since few large, uninterrupted forest areas exist within the state, some conservation objectives can be met through greater coordination of the legal reserve system among property owners. We present three examples of landscape-level prioritization based on existing Forest Code regulations stipulating 80% forest reserves on private property. Through a state mediated system, property owners could augment existing reserve areas on their property through purchase of lands in: 1) buffers surrounding existing conservation units and indigenous reserves; 2) small watersheds with little or no deforestation; 3) forest patches with high connectivity within specified mosaics of different land uses. Any final approach for property-level coordination will depend on the specific conservation goals (e.g., river corridors, bird habitat, or plant biodiversity), but we provide a framework for developing and implementing a conservation plan at the agricultural frontier. Tradeoffs in both conservation value and productive use are required to achieve coordinated conservation at scale.
oai:ojs.unitau:article/35
2024-03-29T09:35:58Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/35
2024-03-29T09:35:58Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 2 No. 1 (2007); 21-29
Spatial and temporal characterization of some water quality physical parameters and their relationships with land-use in Água Fria watershed (Palmas – TO, Brazil)
Avaliado por Pares
da Silva, Alexandre Marco; UNESP
Schulz, Harry Edmar; USP
2007-06-25 13:39:24
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/35
pt
Due to a high population growth that has been occurring in Palmas and due to land use changes that are caused by this population growth and development, the goal of this paper was to study the behavior of four physical parameters of water quality of the Água Fria watershed. The parameters were turbidity, total suspended solids, settleable solids and total dissolved solids. Eight gauging stations were established and the water samples were monthly collected from February/1998 to February/1999. The water bodies of the watershed were generally in good condition concerning these four parameters. However, there were some cases of seasonal irregularity of some parameters, as well as no correlation among some of studied parameters. This might be an indicator of some impacts like accelerated erosion due to a misuse of the lands and misuse of local water resources.
oai:ojs.unitau:article/37
2024-03-29T09:35:58Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/37
2024-03-29T09:35:58Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 2 No. 1 (2007); 44-56
Surface runoff in the Itaim Watershed
Avaliado por Pares
Aguiar, Luiz Sérgio Gonçalvez; UNITAU
Targa, Marcelo dos Santos; UNITAU
Batista, Getulio Teixeira; UNITAU
2007-06-25 13:40:20
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/37
es
This paper describes a work done in the Itaim watershed at Taubaté, SP, and had the objective of estimating the surface runoff based on the Curve-Number (CN) method in area with vegetation cover of grassland (Brachiaria Decumbens), that prevails in this watershed. The surface runoff was estimated using three different methods: 1st) values of accumulated Infiltration (IAc) obtained in the field were used, considered as the Potential Infiltration (S), which varied from 15.37 mm to 51.88 mm with an average value of 23.46 mm. With those measured infiltration rates and using the maximum precipitation values for Taubaté, SP, with duration time of 3 hours: P = 54.4; 70.3; 80.8; 86.7; 90.9; 94.1 and 103.9 mm, respectively, for the return times, Tr = 2, 5, 10, 15, 25, 50 and 100 years, the following values of surface runoff were generated: 34.83; 49.33; 59.14; 64.71; 68.69; 71.73 and 81.10 mm, respectively; In the 2nd method it was considered that the prevailing vegetation cover of the watershed was Dirty Pasture (Pasture with regrowth of natural vegetation) and therefore, a value of CN = 75 was used and generated a potential infiltration, S = 84,7 mm and resulted in surface runoff values that varied from 11 to 44 mm; In the 3rd method, the value of CN was considered equal to 66.57. This value was calculated weighting the contribution of all land use cover classes of the watershed, and as a result a higher value of potential infiltration, S = 127 mm, was obtained. Consequently, the surface runoff values were 5.33; 11.64; 16.72; 19.83; 22.16; 23.98 and 29.83 mm, respectively. Therefore, the comparison with the results obtained by the two Curve-Number methods (conventional and weighted) allowed to be concluded that the Curve-Number method applied in a conventional way underestimated the surface runoff in the studied area. However, results indicate that it is possible to use this method for surface runoff estimates as long as adjustments based on potential Infiltration obtained in field be are available for local situations.
oai:ojs.unitau:article/38
2024-03-29T09:35:58Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/38
2024-03-29T09:35:58Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 2 No. 1 (2007); 57-82
Estimation of the phreatic aquifer recharge of Una watershed in Taubaté, SP
Avaliado por Pares
Santoro, Jair; Instituto Geológico do Estado de São Paulo
Diniz, Helio Nóbile; Instituto Geológico do Estado de São Paulo
Correia, Nathália Torras; Instituto Geológico do Estado de São Paulo
Carbone, Felipe Rodrigues; Instituto Geológico do Estado de São Paulo
Sciotta, Luciana Campos de Oliveira; Instituto Geológico do Estado de São Paulo
2007-06-25 13:40:31
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/38
pt
This paper presents results related to the estimation of the phreatic aquifer recharge of the Una watershed in Taubaté, SP. The goal of this study was to develop public policies for the sustainable use of superficial and phreatic water at the Department of Agrarian Sciences of the University of Taubaté. The main results of this study are: determination of the soil physical indices, characterization of the textural profile, construction of piezometers, monitoring of the watertable, determination of the hydric climatological balance, and physic-chemical and bacteriological analyses of phreatic water. The geotechnical characterization showed that the soil have high total porosity (about 53%), and natural moisture of about 30%. Regarding the results of soil particle size measurements, it was observed that the deeper the soil the more uniform is the sediments texture distribution, varying from fine loamy, to coarse sandy. It is established a consistent relation between hydric balance and porosity, saturation and piezometric measurement in a daily historical series during one year. Methods and results allowed to calculate the phreatic aquifer discharge of several springs, that varied from 14.5 mm/day in the rainy period to 1.9 mm/day in other periods. The existence of faecal coliforms in phreatic aquifer, in variable amounts, showed that there are bacterias in the water infiltrated from septic cesspools or from the nearby Itaim River, contaminated by domestic sewage.
oai:ojs.unitau:article/40
2024-03-29T09:35:58Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/40
2024-03-29T09:35:58Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 2 No. 1 (2007); 83-93
Evaluation of net precipitation in a fragment of Mata Atlântica in different regeneration stages in the municipal district of Viçosa, MG.
Avaliado por Pares
Alves, Rafael Figueiredo; Universidade Federal de Viçosa
Dias, Herly Carlos Teixeira; Universidade Federal de Viçosa
Júnior, José Carlos de Oliveira; Plantar SA
Garcia, Franklin Nicolai Mota; Universidade Federal de Viçosa
2007-06-25 13:40:41
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/40
pt
The goal of this present work was to evaluate the net precipitation in a fragment of the Mata Atlântica biome compound of semideciduous seasonal forest in different regeneration stages in Viçosa, MG, from November of 2005 to October of 2006. It was demarcated four experimental parcels, which three of them were allocated into an initial regeneration area and one into an advanced regeneration area. Gross precipitation, net precipitation and steamflow were measured in 24 storm events, constituted of one or more storm events. The mean precipitation during the studied period was 997 mm. The net precipitation on higher advanced regeneration area that has a basal area of 3.28 m², was 813.90 mm which corresponded to 81.63% of gross precipitation. The initial regeneration area, that has a basal area of 1.22 m², was 792.46 mm which corresponded to 79.43% of gross precipitation. The canopy interception was 18.37% e 20.57%, to advanced regeneration area and initial regeneration areas, respectively. The results were statistically evaluated by t-test and f-test, and showed no significant difference on 5% of probability.
oai:ojs.unitau:article/48
2024-03-29T09:35:58Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/48
2024-03-29T09:35:58Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 2 No. 3 (2007); 44-53
Evaluation of interaction of Zinc, Aluminum, Copper and Manganese on Chromobacterium violaceum
Avaliado por Pares
Sumita, Tânia Cristina; UNITAU
Pereira, Rogerio Santos; EEL - USP
Silva, Messias Borges; EEL - USP
Rosa, Luis Carlos Laureano da; Universidade de Taubaté
Ueno, Mariko; UNITAU
2007-12-20 00:00:00
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/48
pt
The accumulation of metallic salts in the environment resulted from the explotation, mineralogy, industrial, and agro-industrial activities and urban residues affect the dynamic balance of ecosystems, generating environmental and economic problems. The aim of this study was to evaluate the interaction of Chromobacterium violaceum with four metallic salts: aluminum sulphate, copper sulphate, manganese sulphate and zinc sulphate at concentration of 100mg/L or the absence of them, as well as a possible 2nd order interaction effect, using a complete 24 factorial design. The 16 experimental tests were carried out in microplate culture. Suspension of microorganism was prepared in Nutrient Broth and added to the orifices. After incubation at 37ºC during 24 hours, the absorbance was carried out using a 410nm in Versamax reader. The results showed remarkable bacterial adaptability. Student t test analysis showed that manganese was the only metal that did not have significant effect on the population growth of C. violaceum while zinc was the most influent. Positive interactions involving zinc was observed, interaction between aluminum and copper was not relevant.
oai:ojs.unitau:article/50
2024-03-29T09:35:58Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/50
2024-03-29T09:35:58Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 2 No. 3 (2007); 34-43
Ecotoxicological evaluation of leachate from the Limeira sanitary landfill with a view to identifying acute toxicity
Avaliado por Pares
Pelegrini, Núbia Natália de Brito; Faculdade de Engenharia Agrícola-Feagri-UNICAMP
Pelegrini, Ronaldo Teixeira; Centro Superior de Educação Tecnólogica-CESET- UNICAMP
Paterniani, José Euclides Stipp; Faculdade de Engenharia Agrícola-FEAGRI-UNICAMP
2007-12-20 00:00:00
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/50
pt
Final disposal of solid waste is still a cause for serious impacts on the environment. In sanitary landfills, waste undergoes physical, chemical, and biological decomposition, generating biogas and leachate. Leachate is a highly toxic liquid with a very high pollution potential. The purpose of this work is to evaluate toxicity of in natura leachate samples collected from Limeira Sanitary Landfill, in Limeira, SP. The ecotoxicological evaluation comprised acute toxicity assays using as test organisms Daphnia Similis, seeds of Eruca sativa (arugula), and Allium cepa roots (onion). Analyses of color, pH, turbidity, conductivity, hardness, nitrogen, total organic carbon (TOC), adsorbable organic halogen (AOX), and metals were also carried out. The main results for Eruca sativa (arugula) and Allium cepa (onion) indicated that the diluted leachate 50% presented similar toxicity to the phenol solution of 1000 mg.L-1 for arugula and 2000 mg.L-1 for onion. With the solution of Cr+6 concentrations of 3000 mg.L-1 for arugula and 2000 mg.L-1 for onion were found. For analyses with Daphnia Similis the EC50 was 9.3% on average. This way it was possible to observe that biological tests are necessary to evaluate the pollution in the effluents or water bodies. These tests serve to determine the toxic potential of a chemical agent or complex mixture.
oai:ojs.unitau:article/53
2024-03-29T09:35:58Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/53
2024-03-29T09:35:58Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 2 No. 2 (2007); 7-20
Application of the hydrologic model AÇUMOD based on GIS for water resources management of Pirapama River, Pernambuco, Brazil
Avaliado por Pares
Santos, Celso Augusto Guimarães; Universidade Federal da Paraíba
da Silva, Richarde Marques; Universidade Federal da Paraíba
2007-08-31 08:29:00
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/53
pt
This study presents the application of the distributed hydrological model based on GIS – AÇUMOD to estimate the water discharges and potentialities of Pirapama river sub-basins, to be used by the Pirapama River Basin Committee (COBH-Pirapama). The model application included several steps, such as: precipitation data selection, basin discretization into cells, and model parameter calibration using try-and-error technique. The model was calibrated and validated with monthly precipitation data for the period 1987–2001. It was noted that the following parameters were the most important ones during the calibration process: infiltration function, soil minimum water capacity to generate runoff, and soil mean water storage capacity, which directly affect the computed runoff volume. The difference between observed and computed runoff during the calibration and validation processes were respectively -12.65% and 18.87%. The results of the simulated discharges by AÇUMOD, compared to observed ones, showed that the model satisfactorily represents the water basin behavior and, therefore, it can be considered a promising tool for rain-runoff simulation, permanence curve estimation, and discharge regionalization or prediction for Pirapama river basin as well as to other basins in the northeastern Brazil costal area.
oai:ojs.unitau:article/54
2024-03-29T09:35:58Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/54
2024-03-29T09:35:58Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 2 No. 2 (2007); 21-32
Palms around landslide scars on State Park of Serra do Mar – Núcleo Santa Virginia-SP
Avaliado por Pares
Bastos Neto, Adriano Teixeira; UNITAU
Vieira Fisch, Simey Thury; UNITAU
2007-08-31 08:32:29
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/54
pt
This work was carried out at the Núcleo Santa Virginia (State Park of Serra do Mar), São Paulo, Brazil (45º 30' W and 23º 17' S) and has the goals of evaluating the response of the palm community in two landslide areas that occurred in the summer of 1996 due to an atmospheric event (Convergence Zone of South Atlantic). One of them is located in preserved forest area and the other in a secondary vegetation area nearby. In order to evaluate the palm community distribution, 100m2 circular plots were allocated in the edges of the scars of the landslides and in the interior of the adjacent vegetation for three altitudes (bottom, middle and top). The palms were classified in three ontogenetic stages (seedlings, juveniles and adults) which represent five species in preserved area (canopy species: Attalea dubia and Euterpe edulis, understorey species: Geonoma gamiova, G. pohliana and G. schottiana) and four species in secondary area (the same species, except G. pohliana). The disturbance caused perturbation in the palm community. The juveniles of species E. edulis and G. schottiana were stimulated by the increase in luminosity provoked by landslides while G. gamiova decreased drastically in these conditions for all developmental stages. The regeneration pattern observed indicates that species from different forest strata can respond in different ways to this type of environmental disturbance.
oai:ojs.unitau:article/55
2024-03-29T09:35:58Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/55
2024-03-29T09:35:58Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 2 No. 2 (2007); 33-46
Actual and future climatological budget for Taubaté, SP, Brazil
Avaliado por Pares
Horikoshi, Andréa Sanae; UNITAU
Fisch, Gilberto
2007-08-31 08:36:53
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/55
pt
The goal of this study was to determine the actual water budget for Taubaté, SP and investigate the future water availability. The Thornthwaite-Mather (1955) method was used for the climatological water budget combined with observed and simulated data of air temperature and precipitation. The future scenarios indicate an increase of temperature (ranging from + 0.5 °C to + 2.7 °C) and precipitation (ranging from 80 to 150mm). These results will provoke an increase of the water deficit (ranging from 50 to 80mm) and a decrease of the surplus of water (around 200mm). The increase of the precipitation will not be sufficient to compensate for the increase of the water demands from evapotranspiration
oai:ojs.unitau:article/56
2024-03-29T09:35:58Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/56
2024-03-29T09:35:58Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 2 No. 2 (2007); 47-68
Methodology for generation of hydrogeologic maps: rio da Palma watershed case study, DF, Brazil
Avaliado por Pares
Gonçalves, Tatiana Diniz; Universidade de Brasília
Guimarães Campos, José Eloi; Universidade de Brasília
Batista, Getulio Teixeira; Instituto de Pesquisas Ambientais em Bacias Hidrográ¡ficas (IPABHi)
Diniz, Hélio Nóbile; UNITAU
Targa, Marcelo dos Santos; UNITAU
2007-08-31 08:37:42
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/56
pt
This paper had the objective of developing a methodology to support the management of water resources, based on hydro geological cartography, tested for the hydro geologic conditions of a watershed located at Central Brazil. Results show two major products: a hydro geologic, and a potential infiltration and recharge maps of the high course of the Rio da Palma watershed. This paper is presented in six parts. The first one discusses the map’s elements, essential thematic maps and appropriate scales. The second part proposes the graphic criteria for the integrated representation of the major parameters of overlaying aquifers. The third part demonstrates the importance of the data basis for the hydro geologic cartography, i.e., the contribution of each theme such as soil, geology, slope, climate and land use, when appropriately integrated. The fourth part discusses the selection and the integration of the main information layers for the Rio da Palma watershed using a Geographic Information System (GIS). On the fifth part, the result of the integration of the porous domain with the fractured domain aquifer information layers is shown and, finally, the potential infiltration and recharge map of the studied area, elaborated from the integration of overlapping of the data basis information layers is presented and discussed. In general, in the studied area, regions with high infiltration potential prevail where human interference is still moderate. Large portions of low infiltration potential are either associated with high slopes, with shallow soils (Cambissolos) or else with urban constructions.
oai:ojs.unitau:article/57
2024-03-29T09:35:58Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/57
2024-03-29T09:35:58Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 2 No. 2 (2007); 69-87
Physiographic characterization of the Alto Rio Jamanxim Hydrographic Basin, Pará, Brazil
Avaliado por Pares
Pastana de Souza, Ana Katiuscia
Batista, Getulio Teixeira; Universidade de Taubaté
2007-08-31 08:38:27
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/57
pt
The objective of this work was to outline and to characterize the sub-basins of the Alto Rio Jamanxim hydrographic basin and to code them using the concept of “otto-basins”, as well as to quantify the deforestation area and the increase in roads extension in its drainage area from 1999 to 2005. The work was based on data of river’s and road’s network, digital elevation model (DEM), and four TM/Landsat-5 images from 1999 and 2005. The outline of the boundaries and the hydrologic parameters of the Basin were based on a 1:250,000 DEM. Results have shown that nine sub-basins have been outlined in the study area, coded up to level 5 (otto-basin code system) and identifiers varied from 44291 to 44299. Deforestation by human activities totaled 635km2 (11% of the Basin) up to 1999 and to 1,257km2 up to 2005, therefore, an increase of 622km2 or 98% between these two dates. Regarding the road network, a total extension of 1,685km was mapped up to 1999 and 3,638km up to July 2005 what corresponds to an increase of 116% in road construction inside the basin boundaries in six years.
oai:ojs.unitau:article/66
2024-03-29T09:35:58Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/66
2024-03-29T09:35:58Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 2 No. 3 (2007); 19-33
Soil loss prediction in Guaraíra river experimental basin, Paraíba, Brazil based on two erosion simulation models
Avaliado por Pares
Silva, Richarde Marques da; Universidade Federal da Paraíba
Santos, Celso Augusto Guimarães; Universidade Federal da Paraíba
Silva, Leonardo Pereira e; Centro Federal de Educação Tecnológica da Paraíba (CEFET-PB)
Silva, Jorge Flávio Cazé B. da Costa; Universidade Federal da Paraíba
2007-12-19 00:00:00
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/66
pt
In this study, two hydrological models to estimate soil losses and sediment yield due to sheet and channel erosion, at the basin outlet, are applied to Guaraíra River Experimental Basin, located in Paraíba State, northeastern Brazil. The soil erosion models are (a) the classical Universal Soil Loss Equation (USLE), which is used to simulate annual and monthly soil losses; and (b) Kineros model, which is used to simulate the sediment yield within the basin. Kineros model is a physically-based distributed model that uses a cascade of planes and channels to represent the basin and to describe the processes of interception, infiltration, surface runoff and erosion within the basin. The USLE is computed using land use, soil erodibility, topographic digital maps, as well as observed rainfall data. It was found that Guaraíra river experimental basin has a low potential for soil losses; however, specific areas which are susceptible to the erosion process in the basin could be detected by the modeling techniques coupled to a GIS (Geographic Information System).
oai:ojs.unitau:article/68
2024-03-29T09:35:58Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/68
2024-03-29T09:35:58Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 2 No. 3 (2007); 54-61
Pharmaceutical drugs, WWTP, and hydric bodies
Avaliado por Pares
Reis Filho, Ricardo Wagner; Escola de Engenharia de São Carlos/CRHEA – USP
Barreiro, Juliana Cristina; UFSCar
Vieira, Eny Maria; Instituto de Química de São Carlos - Universidade de São Paulo
Cass, Quezia Bezerra; Universidade Federal de São Carlos - Departamento de Química
2007-12-20 00:00:00
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/68
pt
In the last decade, special attention has been given to the presence of pharmaceutical compounds in the aquatic environment; once that the continuous supply and persistence of these substances can be severally prejudicial to the biota. Thus, the development and application of new technologies that allows the removal or diminishes these contaminants has been the focus of the environment sanitation area. However, the absence of specific monitoring programs at the waste water treatment plant (WWTP), unfeasibly the behaviour evaluation of pharmaceutical drugs in the installed plants. The aim work, based on the factors involved in the input of these contaminants in the environment, and take attention to the pathway in the implementation of adequate treatment systems to minimize the deterioration of the aquatic ecosystems.
oai:ojs.unitau:article/70
2024-03-29T09:35:58Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/70
2024-03-29T09:35:58Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 3 No. 1 (2008); 54-67
Environmental fragility and land use of the Pindaíba Creek Hydrographic Basin, Uberlândia, MG, Brazil
Avaliado por Pares
Almeida de Oliveira, Paula Cristina; Universidade Federal de Uberlandia
de Souza Campos Rodrigues, Gelze Serrat; Fundação Estadual do Meio Ambiente
Rodrigues, Silvio Carlos; Universidade Federal de Uberlândia
2008-02-21 10:33:54
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/70
pt
This paper presents an environmental analysis of the fragility of Pindaíba Creek Hydrographic Basin using the analysis of natural and anthropic components interactions in the study area. The main objective of this research was to identify and map the environmental fragility of this basin. The specific objectives consisted in the physical characterization of land use and land cover. To accomplish this research, several field campaigns were conducted throughout the basin. The cartographic base was compiled using the Taboca and Pau Furado charts at 1:25.000 scale that were digitized using the software Cartalinx. The thematic maps of geology, geomorphology, and land use were compiled using the software Arcview 3.2. The fragility map was also derived based on the software Arcview 3.2 using the tool Geoprocessing Wizard. The methodology developed by Ross (1990, 1994) was used for the evaluation of the landscape fragility. This methodology attributes values to environment variables according to their potentialities. Results allowed the identification of major natural and anthropic actions in the study area represented in a map of fragility potential. These results indicate that land use has to be changed in order to adjust to the landscape morphology, considering not only natural resources, but also the needs of the people who live in the study area.
oai:ojs.unitau:article/72
2024-03-29T09:35:58Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/72
2024-03-29T09:35:58Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 2 No. 3 (2007); 62-82
Environmental chemical study of the Murucupi river – Barcarena, PA, Brazil impacted area for the aluminum production
Avaliado por Pares
Pereira, Simone Pinheiro; Universidade Federal do Pará
Lima, Maurício Araújo; ELETRONORTE
Freitas, K'Ellen Heloizy; UFPA
Mescouto, Cleide Samara; UFPA
Saraiva, Augusto Fonseca; ELETRONORTE
2007-12-20 00:00:00
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/72
pt
The present work evaluate the chemical conditions of the Murucupi river with relationship to the physical-chemical parameters and the presence of chemical elements in the water and correlations. The Murucupi river is located in the amazon region close the aluminum production area. Were analyzed the major, minor and trace elements (Ca, Mg, Na, K, Fe, Al, Ba, Mn, Sr, Zn, Ni, Pb e Cu), and physical-chemical parameters, acidity, total alkalinity, organic matter, pH, turbidity, temperature, conductivity, dissolved oxygen (OD) and total hardness. 13 collection points were selected along this river. In relation to the physical-chemical parameters the pH and OD only presented values in non conformity with the strip of values established by the resolution 357/05 of CONAMA. In relation to the chemical elements were found only the aluminum (Al: 356.04µg/L) and the iron (Fe: 1080.80µg/L), were in non conformity with the legislation. This results shows the anthropogenic influence in the contamination of the Amazon rivers from the production of aluminum reject.
oai:ojs.unitau:article/73
2024-03-29T09:35:58Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/73
2024-03-29T09:35:58Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 3 No. 1 (2008); 68-75
TDR probes calibration in laboratory conditions
Avaliado por Pares
Christ Milani, Dione Inês; Faculdades Assis Gurgaz
Ferreira Tavares, Maria Hermínia; Universidade Estadual do Oeste do Paraná
Scherpinski, Clementina; Universidade Estadual do Oeste do Paraná
2008-03-25 08:15:59
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/73
pt
Among the indirect methods to evaluate the volumetric soil water content (?v), the Time Domain Reflectometry (TDR) technique is receiving growing attention. As any technique, it presents advantages and disadvantages: the most serious disadvantage is the calibration necessity. At the present study, values of apparent dielectric constant (Ka) and volumetric water content (?v) for a Red Latosol were obtained in a laboratory experiment, using seventeen probes of TDR, from which two were original and fifteen were manufactured by the staff. This study aimed: a) to calibrate the seventeen probes, in laboratory conditions, comparing six regression models for each probe; b) to verify the viability to use the manufactured probes. It was found out that the best regression model was the cubic polynomial model and that the manufactured probes presented performances comparable to the original ones.
oai:ojs.unitau:article/76
2024-03-29T09:35:58Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/76
2024-03-29T09:35:58Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 2 No. 3 (2007); 98-111
Qualitative and quantitative control of the urban runoff with detention basis
Avaliado por Pares
Campana, Nestor Aldo; Universidade de Brasília
Bernardes, Ricardo Silveira; Universidade de Brasília
da Silva Jr., Jolival Antônio; Universidade de Brasília
2007-12-20 00:00:00
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/76
pt
Floods in urban areas are responsible for impacts that go from puddles formation to environmental and social disasters. Looking for alternatives to minimize the effects of floods in urban areas, some methodologies have been studied and applied, such as the use of detention basin in high consolidated urban areas. This study analyses the efficiency on flood control of two detention basins, a dry and a wet one. The study approaches both quantitative and qualitative aspects related to runoff from an urban area of Brasilia city, federal district of Brazil. The affluent caught by the detention basins is related to a conventional urban drainage system with a 4.75km2 (dry basin) and 6.12km2 (wet basin) contribution area. The results showed that the basins can reduce the peak income flow significantly (averaged 62.6% and 74% peak flow reduction, for dry and wet basin, respectively) and has positive impact over pollution control, with an average reduction of 1 to 3% for BOD and up to 41 to 74% for Suspended Solids.
oai:ojs.unitau:article/77
2024-03-29T09:35:58Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/77
2024-03-29T09:35:58Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 3 No. 1 (2008); 26-42
Map of infiltration of the Paraíba do Sul basin using physical elements and precipitation
Avaliado por Pares
Soares, Paulo Valladares; Fundação Florestal
Pereira, Sueli Yoshinaga; Instituto de Geociências, Unicamp
Simões, Silvio Jorge Coelho; Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP), Brasil.
Bernardes, George de Paula; Laboratório de Análise Geoespacial, UNESP
Barbosa, Sérgio Augusto; Agência Nacional de Águas – ANA
2008-03-25 08:14:29
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/77
pt
This paper presents a methodological approach to characterize the infiltrations conditions of a portion of Paraiba do Sul river basin (7,600 km2) using Geographic Information Systems tools. To each landscape feature (rock, structure, relief, soil, and land-use) and to the spatial distribution of precipitation, an infiltration potential scale factor that ranges from higher influence (5) to lower influence (1) was applied considering its geographical position. The results showed that higher infiltration capacity areas are located in Serra da Bocaina associated to Serra do Mar relief in the Northeast region and Southeast region as well associated to gentle hills and sandstones along the Paraíba do Sul river. The creation of an Infiltration Map may contribute to the development of long-term territorial plans and water resource management plans in order to support future implementation of non-structural and structural measures at both regional and local scales.
oai:ojs.unitau:article/79
2024-03-29T09:35:58Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/79
2024-03-29T09:35:58Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 3 No. 1 (2008); 91-107
Study of human occupation impacts in the Batedor river basin in the Mantiqueira Mountain in the municipal district of Cruzeiro, SP, Brazil
Avaliado por Pares
Curvello, Rubens Torres; UNITAU
Batista, Getulio Teixeira; UNITAU
Targa, Marcelo dos Santos; Universidade de Taubaté
2008-04-30 09:04:02
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/79
pt
The study of hydrographic basins as territorial units integrating the management of hydric resources is essential to guarantee sustainable use of natural resources in these basins. The establishment of the Paraíba do Sul hydrographic basins committee, in 1994, determined the need for management planning and action integration in the Paraíba do Sul basin which incorporates a variety of industries and intense land use. The Batedor river, in the municipality of Cruzeiro, SP, flows into the Passa Vinte which is an affluent of Paraíba do Sul river. Its mouth is located at 22°31’0.63”S and 45°01’2.07”W. Its farthest water contributing source lies about 8.5 km, near the Itaguaré peak 2,308 m high, in the Mantiqueira Mountain on the border of São Paulo and Minas Gerais States. To characterize land use in the Batedor hydrographic basin, Landsat imagery and topographic charts were analyzed based on remote sensing and geoprocessing techniques. This paper describes the study of impacts related to land and water resources use in the Batedor river basin and the generation of educational environmental material. Results have shown that this basin has good water supply, has no flooding risk and has several springs running down the Mantiqueira Moutain slopes that form young creeks with few meanders. Irregular human occupation for housing and subsistence agriculture, mainly banana plantations can be seen in deep slopes and riparian areas, as well as degraded pastures that indicate inappropriate land use and no conformance to pertinent legislation. The decrease in forest vegetation cover can cause severe erosion with significant soil loss and sediment deposition in the river, thus reducing water quality and quantity during the dry season. This basin is currently responsible for 70% of the Cruzeiro, SP water supply.
oai:ojs.unitau:article/81
2024-03-29T09:35:58Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/81
2024-03-29T09:35:58Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 3 No. 1 (2008); 76-90
Application of digital techniques to generate a cartographic database of Córrego do Cabuçu de Baixo basin, São Paulo, SP, Brazil
Avaliado por Pares
Nóbrega, Rodrigo Affonso de Albuquerque; Escola Politécnica da Universidade de São Paulo
Barros, Mario Thadeu Leme de; Escola Politécnica da Universidade de São Paulo
Quintanilha, José Alberto; Escola Politécnica da Universidade de São Paulo
2008-04-30 08:44:10
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/81
pt
The use of appropriate cartography database is extremely important to support projects of planning and land management. However, the absence of maps, or the amount of obsolete maps, has been leading to the adoption of alternative methodologies aiming to faster and less onerous solutions for the development of cartography databases, without compromising quality. Regarding this problem, the present paper reports on the viability of constructing a cartographic database designed for applications in hydrology, more specifically, as a base for a Decision Support System for Urban Basin Management - DSSURM. The methodology combines techniques of manual terrain features extraction, as well as automatic techniques of photogrammetry. Digital orthophotos and contour maps were generated. The coarser 5 meters interval was used for the mountainous regions and forest, and the finer 1 meter interval for other regions, floodplains were prioritized for mapping flooding areas. The final analyses show the viability of the methodology as well as the high quality of the cartographic products.
oai:ojs.unitau:article/82
2024-03-29T09:35:58Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/82
2024-03-29T09:35:58Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 3 No. 1 (2008); 18-25
Mapping and monitoring land cover types in Corumbiara area, Brazilian Amazônia, using Landsat TM and JERS-1 SAR multitemporal data
Avaliado por Pares
Shimabukuro, Yosio Edemir; Instituto Nacional de Pesquisas Espaciais (INPE), Brasil
Almeida Filho, Raimundo; Instituto Nacional de Pesquisas Espaciais (INPE), Brasil
Kuplich, Tatiana Mora; Instituto Nacional de Pesquisas Espaciais (INPE), Brasil
Freitas, Ramon Morais de; Instituto Nacional de Pesquisas Espaciais (INPE), Brasil
2008-03-25 08:16:24
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/82
en
This paper discusses the use of a Landsat Thematic Mapper (TM) and JERS-1 Synthetic Aperture Radar (SAR) time-series for mapping and monitoring land cover types in a test site in the region of Corumbiara, Rondônia State, western Brazilian Amazônia. In order to support JERS-1 data analysis, land cover maps were obtained by digital classification of Landsat TM images acquired from 1993 to 1997 period, following a procedure based on image segmentation, unsupervised classification, and post-classification image edition. The comparison of these products with JERS-1 temporal images shows that clear-cut areas are well-identified presenting a low backscattering response as expected. On the other hand, areas that have been cleared and even burned but with remaining forest material left on the ground present high backscattering response. Considering these observations and user interpretation expertise, temporal SAR images present an effective source of information for mapping and monitoring deforestation, especially in areas covered by clouds with restricted use of optical data.
oai:ojs.unitau:article/87
2024-03-29T09:35:58Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/87
2024-03-29T09:35:58Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 2 No. 3 (2007); 83-97
Evaluation of landscape change in the Vidoca Stream Watershed, São José dos Campos, SP, Brazil
Avaliado por Pares
Stempniak, André; Universidade de Taubaté
Batista, Getulio Teixeira; Instituto de Pesquisas Ambientais em Bacias Hidrográ¡ficas (IPABHi)
Morelli, Ademir Fernando; Universidade de Taubaté
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/87
pt
Hydrographic basins in urban areas frequently undergo drastic landscape changes. This work analyzed the landscape transformation of Vidoca Stream Watershed in the period from 1500 to 2003. Based on Remote Sensing and GIS techniques it was found that: a) Between 1500 and 1953 natural vegetation classes which included Alluvial Semi-decidual Seasonal Forest, Mountainous Semi-decidual Seasonal Forest and Open Arboreal Savannah changed to anthropic fields and grasslands; b) From 1954 to 1985, just before the massive urban occupation of the area, there was a short period of regeneration of the Alluvial Semi-decidual Seasonal Forest above the Carvalho Pinto Highway; later on, the grasslands changed to anthropic fields; c) From 1986 to 1997, a fast urbanization process occurred and resulted in the replacement of the grassland and anthropic fields by urban constructions; d) From 1998 to 2003, with the consolidation of the urbanization process, the urban occupation reached the boundaries of the plateau and the lowlands of the watershed, resulting in soil impermeabilization. The results of this research indicated that the urbanization process was not controlled in spite of restricted legislation and environmental degradation occurred in this studied watershed along of the study period.
oai:ojs.unitau:article/90
2024-03-29T09:35:58Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/90
2024-03-29T09:35:58Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 3 No. 2 (2008); 77-89
Determination of saturated areas using TOPMODEL in the Pequeno river watershed, Southern Brazil
Avaliado por Pares
Santos, Irani dos; UFPR
Kobiyama, Masato; UFSC
2008-08-26 10:22:26
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/90
pt
This work presents the determination of saturated areas in the Pequeno River watershed (104 km2), located in the São José dos Pinhais District, Metropolitan Region of Curitiba, Paraná State, Brazil. We employed the hydrological model TOPMODEL which assumes that the water dynamics are influenced by soil and hillslope characteristics of the entire watershed. It calculates the runoff and the spatial distribution (saturated and unsaturated areas) of the soil humidity in the system throughout the considered time period. The maps of the saturated areas were analyzed taking into account the land use and riparian vegetation (permanent preservation). The computations showed a good adherence between calculated and observed runoff (R²=0.75), thus confirming the model efficiency in regions of humid climate and smooth topography. The simulation results reveal a potential application for environmental planning because they allow the discussion and further orientation for human interventions in the environment based on the understanding of the natural processes.
oai:ojs.unitau:article/95
2024-03-29T09:35:58Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/95
2024-03-29T09:35:58Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 3 No. 1 (2008); 43-53
Agronomic performance of tifton 85 (cynodon spp) grass cultivated in constructed wetlands used in milk processing wastewater treatment
Avaliado por Pares
Matos, Antonio Teixeira; DEA/UFV
Abrahão, Sérgio Silva; DEA/UFV
Pereira, Odilon Gomes; DZO/UFV
2008-04-23 14:13:53
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/95
pt
The present work was carried out in order to study the performance of the tifton 85 (Cynodon spp) grass cultivated in wetlands (SACs) and submitted to different organic load application rates (TCOs) of milk processing wastewater (ARL), in the climatic conditions of Viçosa - MG. The experimental structure was constituted by five SACs with horizontal subsuperficial flow, using tanks of 0.40 x 0.75 x 3.00 m (depth, width and length) filled with 0.33 m depth of fine stones. The ARL was applied in average flow of 60 L.day-1, hydraulic time residence of 4.8 days and TCOs of 66, 130, 190, 320 and 570 kg.ha-1.day-1 of DBO. The tifton 85 grass adapted well to SACs, presenting good rooting, high yield and capacity of nutrients (N, P and K) and sodium removal of the ARL, whose values were, respectively, between 216 - 544, 24 - 61, 115 - 204 and 4.3 – 10.9 kg.ha-1.
oai:ojs.unitau:article/100
2024-03-29T09:35:58Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/100
2024-03-29T09:35:58Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 3 No. 1 (2008); 5-17
Water balance in Cubatão-Sul river catchment, Santa Catarina, Brazil
Avaliado por Pares
Kobiyama, Masato; Universidade Federal de Santa Catarina
Chaffe, Pedro Luiz Borges; Universidade Federal de Santa Catarina
2008-04-23 11:50:26
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/100
en
The objective of the present study was to evaluate the water balance in the Cubatão-Sul river catchment (403.83 km2), Santa Catarina State, Brazil, which is very important for irrigated horticulture and drinking-water supply to the Great Florianópolis Region. The daily data obtained from the Poço Fundo hydrometeorological station and São José Meteorological station during the period between 1977 and 1994 were used for the analysis. A lumped and storage model HYCYMODEL was used for both water balance and evapotranspiration analyses and five additional methods were used for the evapotranspiration analysis. The results from the HYCYMODEL showed that the total discharge and the evapotranspiration in the catchment are approximately 62% and 44% of the annual rainfall (1563 mm), respectively. The total discharge consists on the direct runoff of 26% and the base flow of 74%. The actual evapotranspiration estimated with the water budget method was practically equal to that obtained with the HYCYMODEL. And the values of the ratio of the annual actual evapotranspiration to the annual potential evapotranspiration are 0.39, 0.58, 0.65 and 0.69 for Hamon method, modified Penman method, Blaney and Criddle method and Thornthwaite method, respectively. The increasing rate of the discharge over rainfall is larger than that of the evapotranspiration. When the annual rainfall is more than 930 mm, the discharge is always larger than the evapotranspiration.
oai:ojs.unitau:article/101
2024-03-29T09:35:58Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/101
2024-03-29T09:35:58Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 3 No. 3 (2008); 105-113
Coconut irrigation water saving as a function of areas of the concentration of the root system and soil cover
Avaliado por Pares
Silva, Ivandelson Siqueira e; Free Lance
Azevedo, Carlos Alberto Vieira de; Universidade Federal de Campina Grande
Guerra, Hugo Orlando Carvallo; UFCG
Soares, Frederico Antônio Loureiro; CENTEC
Lima, Vera Lucia Antunes de; UFCG
Dantas Neto, José; UFCG
2008-12-22 18:26:28
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/101
pt
The Brazilian production of coconut has not been sufficient to attend the internal market demand which has resulted in great importations of dry and semi industrialized coconut (IBGE, 2006). The northeast of Brazil has the greatest coconut production and is, at the same time, characterized for its high evapotranspiration demand and the lowest precipitation, therefore, it is necessary to optimize the irrigation water used. During the development phase of the coconut tree, most of the root system concentrates around 1m of radius, and in the adult phase, in larger part, to a radius up to 2m. The traditional procedure of calculation of the water volume to be applied through irrigation, normally considers the area given by the crop planting spacing and a canopy cover coefficient. This results in great volumes of water applied unnecessarily. To save water, this study investigates the calculation of the volume of irrigation water considering the areas where larger concentration of the root system occurs. For the first year of development of the coconut tree, four areas of irrigation delimited by rings of zinc with diameters of 0.7 m, 0.8, 0.9 and 1.0 m were used to irrigate the portion with the larger concentration of the root system, and two conditions of soil covering (covered and bare soil), plus a control (4 x 2 + 1), resulting in nine treatments with three repetitions, totaling 27 plots. The procedure proposed in this research for the calculation of the water volume to be applied in the coconut crop, based on areas of larger concentration of the root system, promoted considerable economy of water, in relation to the procedure traditionally used. The isolation of the soil surface in order to avoid the evaporation contributed to a substantial reduction of the applied volume of water as well.
oai:ojs.unitau:article/104
2024-03-29T09:35:58Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/104
2024-03-29T09:35:58Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 3 No. 3 (2008); 81-94
Controlled disposal of domestic effluent sewage in the ground to reduce fecal coliforms
Avaliado por Pares
Castro Ribas, Teresa Blandina; UNITAU
Fortes Neto, Paulo; UNITAU
2008-12-22 18:35:02
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/104
pt
The indiscriminate launching in water bodies of domestic sewage without treatment, or even treated, but without appropriate disinfection, contributes with significant amount of organisms of the called "coliform group” that can carry specific illnesses agents propagated through the water. The application of effluent in the ground, instead of direct disposal in water courses, in addition to being an alternative way for the disposal of residues and biological control of pollutants, constitutes an adequate way of nutrients supply to the soil and plants. So, this work had as objective the evaluation of the reduction of fecal coliforms, after controlled applications of 60 days treated effluent in cultivated soil, by analyzing the increase of fluorescent rhizobacterias Pseudomonas fluorescens and Bacillus spp. present in the rhizospheres of different crops. The experiment was developed in field conditions in the Experimental Farm of Department of Agrarian Sciences of the University of Taubaté, municipality of Taubaté, SP. The Experimental design consisted of random blocks, with five treatments including annual crops (Oats, Barley, Triticale - a cross between wheat and rye, Black Beans and non-cultivated soil as witness - blank reference) and four repetitions, totalizing 20 ground plots with area of 2 m x 1 m with 50 cm space among plots on a Dystrophic Red-Yellow Latossol. Results from the microbial analyses of rhizosphere and non-rhizosphere soil indicated that the rhizosphere of oats had denser rhizobacterias than the other crops. However, the greatest efficiency was found in the reduction of thermo-tolerant coliforms for both black beans and non-cultivated soil.
oai:ojs.unitau:article/106
2024-03-29T09:35:58Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/106
2024-03-29T09:35:58Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 3 No. 2 (2008); 19-27
Mercury Bioaccumulation in the Brazilian Amazonian Tucunares (Cichla sp., Cichlidae, Perciformes)
Avaliado por Pares
Vera, Ysrael Marrero; PUC-Rio
Carvalho, Roberto José; PUC-Rio
Castilhos, Zuleica Carmen; CETEM
Kurtz, Maria Josefina Reyna; Scitech Environmental Science And Technology Ltda.
2008-08-26 09:49:34
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/106
en
There are emissions of mercury to the atmosphere, soil and rivers of the Brazilian Amazon stem from many sources. Once in the atmosphere, the metal is oxidized and immediately deposited. In the water, the transformation to methylmercury takes place mostly by the action of microorganisms. The formation of methylmercury increases the dispersion and bioavailability of the element in the aquatic environment. Methylmercury can be assimilated by plankton and enters the food chain. The concentration of mercury increases further up in the trophic levels of the chain and reaches the highest values in carnivorous fishes like tucunare. Therefore, mercury emissions cause the contamination of natural resources and increase risks to the health of regular fish consumers. The objective of this work was to study the bioaccumulation of mercury in tucunares (Cichla sp.), top predators of the food chain. The fishes were collected at two locations representative of the Amazonian fluvial ecosystem, in the state of Pará, Brazil, in 1992 and 2001. One location is near a former informal gold mining area. The other is far from the mining area and is considered pristine. Average values of total mercury concentration and accumulation rates for four different collection groups were compared and discussed. Tucunares collected in 2001 presented higher mercury contents and accumulated mercury faster than tucunares collected in 1992 notwithstanding the decline of mining activities in this period. The aggravation of the mercury contamination with time not only in an area where informal gold mining was practiced but also far from this area is confirmed.
oai:ojs.unitau:article/109
2024-03-29T09:35:58Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/109
2024-03-29T09:35:58Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 4 No. 1 (2009); 156-168
Hydrological and environmental diagnostic of the Cachoeira das Pombas’s watershed, Guanhães, MG, Brazil
Avaliado por Pares
Tonello, Kelly Cristina; doutoranda FEAGRI/UNICAMP
Teixeira Dias, Herly Carlos; Universidade de Viçosa
de Souza, Agostinho Lopes
Ribeiro, Carlos Antonio Alvares Soares
Firme, Deuseles João; Celulose Nipo-Brasileira S.A - CENIBRA, Ipatinga-MG
Leite, Fernando Palha; Celulose Nipo-Brasileira S.A - CENIBRA, Ipatinga-MG
2009-04-23 16:27:43
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/109
pt
The objective of this work was to evaluate hydrological and environmental issues of Cachoeira das Pombas watershed, in Guanhães, eastern Minas Gerais State, Brazil, to support its management plan. The characterization of water springs included the definition of its types, assessment of flow persistence, conservation state, outflow values, and the hydrological and environmental conservation state of the watershed. For a detailed analysis, the watershed was studied considering each of its small watersheds. Analyzing the hydrological and environmental conservation state of the watershed, it was concluded that an integrated management of natural resources is necessary inasmuch as the flow rate showed to be irregular, with great variation between the rainy and dry seasons and several erosion and silting spots observed during the study period.
oai:ojs.unitau:article/114
2024-03-29T09:35:58Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/114
2024-03-29T09:35:58Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 3 No. 2 (2008); 90-105
Phytoplankton density and trophic state of Canha and Pariquera-Açu rivers, Ribeira de Iguape hydrographic basin, SP, Brazil
Avaliado por Pares
Cunha, Davi Gasparini Fernandes; Universidade de São Paulo (USP)
de Falco, Patrícia Bortoletto; Universidade de São Paulo (USP)
Calijuri, Maria do Carmo; Universidade de São Paulo (USP)
2008-08-26 10:23:00
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/114
pt
Regarding the lack of studies about lotic eutrophication, mainly for tropical rivers, this research aimed to assess the density of phytoplanktonic community of two tropical rivers located in Ribeira do Iguape Watershed (São Paulo state, Brazil), Canha and Pariquera-Açu Rivers, based on sampling campaigns in January and April, 2007. These results were compared to the mTSI (mean Trophic State Index) values. This index was originally developed for lentic aquatic systems and its calculus depends on total phosphorous, orthophosphate and chlorophyll-a concentrations in water samples. Comparing mTSI values in all sampling stations with the phytoplankton quantitative results, it was possible to verify that mTSI may overestimate the trophic state of lotic ecosystems, since the phosphorus species that integrate its calculus contributed to an improper augmentation on mTSI, which were incompatible with the real associated biological response. Thus, for April sampling, although mTSI values were higher, in general, phytoplankton density were lower (minimum of 83 indmL-1 for Canha River and of 66 indmL-1 for Pariquera-Açu River). In this case, the high total phosphorous concentrations by themselves were not enough to promote proportional phytoplanktonic growth, which was probably limited by other factors, like water temperature, suspended solids concentration, river discharge and zooplanktonic predation. In January, on the other hand, mTSI values were lower, but total phytoplankton density was higher. For this sampling, the lower orthophosphate concentrations in water pointed phytoplankton assimilation of this nutrient.
oai:ojs.unitau:article/118
2024-03-29T09:35:59Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/118
2024-03-29T09:35:59Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 3 No. 2 (2008); 51-61
Evaporative cooling: water for thermal comfort
Avaliado por Pares
Camargo, José Rui; Mechanical Engineering Department, UNITAU, University of Taubaté
2008-08-26 09:55:57
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/118
en
Evaporative cooling is an environmentally friendly air conditioning system that operates using induced processes of heat and mass transfer, where water and air are the working fluids. It consists, specifically, in water evaporation, induced by the passage of an air flow, thus decreasing the air temperature. This paper presents three methods that can be used as reference for efficient use of evaporative cooling systems, applying it to several Brazilian cities, characterized by different climates. Initially it presents the basic operation principles of direct and indirect evaporative cooling and defines the effectiveness of the systems. Afterwards, it presents three methods that allows to determinate where the systems are more efficient. It concludes that evaporative cooling systems have a very large potential to propitiate thermal comfort and can still be used as an alternative to conventional systems in regions where the design wet bulb temperature is under 24ºC.
oai:ojs.unitau:article/120
2024-03-29T09:35:59Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/120
2024-03-29T09:35:59Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 3 No. 1 (2008); 108-137
Hydrogeology and hydrodynamics of Tremembé aquifer, São Paulo, Brazil
Avaliado por Pares
Diniz, Helio Nóbile; São Paulo State Geological Institute, Environmental Secretariat
Santoro, Jair; São Paulo State Geological Institute, Environmental Secretariat
Batista, Getulio Teixeira; University of Taubaté
Dias, Nelson Wellausen; University of Taubaté
Targa, Marcelo dos Santos; University of Taubaté
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/120
en
This paper shows the results obtained from several pump tests of two wells drilled 13.2 meters apart, in the Agrarian Sciences Department of the University of Taubaté farm, located in the Una river hydrographic basin, Taubaté municipality, State of São Paulo, Brazil. During well drilling some difficulties were encountered due to the presence of sandy grains without inter-granular cementation of the Tremembé Formation sandstones, Taubaté Group. The detailed description of the geologic profile obtained by sampling the perforated sedimentary layers shows the presence of persistent sandstone and conglomerate sequences, intercalated by layers of shale and claystone with limestone nodules. In order to determine the hydrodynamic parameters of the Tremembé aquifer, several pump tests were conducted during well perforation and the unconfined, leaky, water-table, and confined aquifer layers were sampled. Once the boreholes were completed, tests were conducted to determine maximum discharge rate, interference between wells and artificial recharge potential. In addition to establishing appropriated methodologies for the determination of aquifer hydrodynamics, this paper describes techniques for interpreting the effects of artificial recharge and interference between wells, and demonstrated the application of image well theory complemented with a new theory, the image well water-mirror.
oai:ojs.unitau:article/125
2024-03-29T09:35:59Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/125
2024-03-29T09:35:59Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 3 No. 3 (2008); 128-142
Main usages of Sanhauá river water in the area of influence of the former Roger’s open dump: revising proposal of its classification
Avaliado por Pares
Athayde Júnior, Gilson Barbosa; UFPB
Nóbrega, Claudia Coutinho; UFPB
Gadelha, Carmem Lúcia Moreira; UFPB
Santana, Natalia Cibely Bezerra; UFPB
Costa, Magdalena Duarte; UFPB
2008-12-22 18:36:01
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/125
pt
The main usages of surface water near to the former Roger’s open dump were investigated by means of visits every three months. These visits were performed in: March 2006, August 2006, November 2006, February 2007, May 2007 and August 2007. The following activities were identified: fishing, crustacean and shellfish catchments, primary contact bath, discharge of sewage, disposal of solid wastes, and discharge of leachate generated by the former open dump. Furthermore, social-economical questionnaires were applied to the people living nearby. Results showed that 50.2% of interviewed people stated that uses the Sanhauá river water for fishing or crustacean or shellfish catchments; 45.8% said that use the river for primary or secondary contact bath or navigation; 93.1% of interviewed people said that their houses were not attended with sewage and so that, the final disposal site for the sewage was the Sanhauá river. Although all houses are attended by solid waste collection services, 46.6% of the interviewed people declared to know about solid wastes disposal at the Sanhauá river. According to these usages and CONAMA Resolution 357/2005 and the water salinity, the Sanhauá river would be classified into class 1 for brackish water, as opposed to its present classification: class 3. The monitoring showed that water quality standards were not in accordance to the class 1 for brackish water. Therefore, the environmental institution should adopt measures so that the water quality of Sanhauá river would be maintained or proceed to the revision for the river classification.
oai:ojs.unitau:article/126
2024-03-29T09:35:59Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/126
2024-03-29T09:35:59Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 3 No. 3 (2008); 95-104
Determination of important pipes segments in water distribution systems using the hydraulic vulnerability
Avaliado por Pares
Navarro, Zacarias; UFSC
Sens, Maurício Luiz; UFSC
Dalsasso, Ramon Lucas; UFSC
Pizzolatti, Bruno Segalla; UFSC
2008-12-22 18:39:34
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/126
pt
Water supply systems, due to their configuration, tend to be vulnerable to internal and external threats, which can potentially cause instability in water distribution. The vulnerability assessment is a tool that has been used to ensure the water supply in different failure scenarios, and can assist in seeking alternatives for supplying water in emergency situations. This work aimed mainly at determining the most important or critical segments for an adequate performance of the water supply system when there are emergency conditions such as the ones caused by natural disasters. The system’s hydraulic performance was evaluated based on simulations using EPANET 2.0. The vulnerability was determined by using an application written in Visual Basic 6.0 to customize EPANET using its Programmer's Toolkit. The system vulnerability was determined with the interruption of one segment at a time to calculate, in a dynamic way, the importance of each segment to the system, and by comparison of these results to the index of relative importance by flow rate. The results showed that using the indices Vulnerability-System and Vulnerability-Node was adequate to establish the importance of a critical segment in the performance of a network.
oai:ojs.unitau:article/130
2024-03-29T09:35:59Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/130
2024-03-29T09:35:59Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 3 No. 2 (2008); 106-121
Environmental sensitivity of the coastal islands of Ubatuba, SP, Brazil
Avaliado por Pares
Poletto, Carolina Rodrigues Bio; Universidade de Taubaté
Batista, Getulio Teixeira; Universidade de Taubaté
2008-08-26 11:07:02
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/130
pt
The Environmental Sensitivity Index Maps for Oil Spills (ESI Maps, or SAO in Portuguese) constitute an essential component and source of basic information for emergency planning, response decision support and damage evaluation in case of oil spills. This study aims at the elaboration of sensitivity maps for oil spills for the islands within the Ubatuba municipality, north coast of the State of São Paulo. The adopted methodology is based on the Technical Specifications for the production of Environmental Sensitivity Maps for oil spills (SAO maps) proposed by the Brazilian Ministry of Environment. The study involved the gathering of secondary data, followed by field work carried out in the summer and winter periods of 2007; the elaboration of the cartographic base maps and, finally, the integration of the data to a GIS (Geographic Information System). As a result it was registered and mapped the physical (geology, geomorphology, oceanography and climatology), biological (fauna, flora and coastal environments) and socioeconomic (anthropic influence, human use, artificial structures and impacts) resources of Ubatuba coastal islands. Eleven beaches have been identified, located at six islands, with distinct topographic and geomorphologic features. The beaches were classified with sensitivity index 4, because they are sheltered from actions of waves and currents. Most of the mapped environments (44.8%) were classified with sensitivity index 8, indicating high sensitivity of the islands. The oil spill impacts on coastal environments can be significantly minimized during the contingency actions when previous knowledge of the ecosystems that compose the islands environment is available, especially when it is integrated into GIS data basis, capable of displaying easy-to-use maps. The environmental sensitivity mapping is an important management instrument, especially when dealing with sensible and poorly studied areas such as the islands of Ubatuba.
oai:ojs.unitau:article/132
2024-03-29T09:35:59Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/132
2024-03-29T09:35:59Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 3 No. 2 (2008); 62-76
Evaluation of regionalization flows models performance at Santa Bárbara River Basin, Goiás, Brazil
Avaliado por Pares
Fioreze, Ana Paula; Semarh Goiás
Oliveira, Luiz F. Coutinho; Universidade Federal de Lavras
Franco, Alexandre P. Barbosa
2008-08-26 10:21:46
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/132
pt
Information on river flows is essential for water resources management. Most of the Brazilian small watersheds is ungauged. Regionalization of hydrologic information is an alternative way to get this lacking information. The regionalization models, however, are a simplified representation of natural phenomena, what could lead to miscalculation. Therefore, these models should be tested before being used as a management tool. This paper evaluates the performance of the regionalization models created for the Santa Bárbara River Basin region, in Goiás. This river basin is located between 17º45’ and 18º15’ South and 49º36’ and 50º03’ West and has a catchment area of 1371,16 km2. The models estimate average streamflow, maximum streamflow, minimum streamflow, the 95% duration streamflow, the seven day, ten years, minimum streamflow and the monthly-average streamflows. The tested streamflow regionalization models proved to be good enough for average flows, but not for maximum and minimum events. The models based on homogeneous regions were superior to those that ignored that aspect. The model that uses drainage area and density to estimate the 95% duration streamflow could be used in water resources management with little error. The use of this model would better represent the water availability at Santa Bárbara River Basin than a few local measurements currently used.
oai:ojs.unitau:article/135
2024-03-29T09:35:59Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/135
2024-03-29T09:35:59Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 3 No. 2 (2008); 5-18
Impacts of some divalent cations on periplasmic nitrate reductase and dehydrogenase enzymes of Escherichia, Pseudomonas and Acinetobacter species
Avaliado por Pares
Orji, Justina Chibuogwu; Federal University of Technology,Owerri,Imo State,Nigeria
Nweke, Christian Okechukwu; Federal University of Technology,Owerri,Imo State,Nigeria
Nwabueze, Rose N.; Federal University of Technology,Owerri,Imo State,Nigeria
Anyaegbu, Blessing; Federal University of Technology,Owerri,Imo State,Nigeria
Chukwu, Juliet C.; Federal University of Technology,Owerri,Imo State,Nigeria
Chukwueke, Chinyere P.; Federal University of Technology,Owerri,Imo State,Nigeria
Nwanyanwu, Christian E.; Federal University of Technology,Owerri,Imo State,Nigeria
2008-08-21 15:45:19
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/135
en
The impacts of Hg2+, Cd2+ and Zn2+ on the activities of periplasmic nitrate reductase (NAP) and dehydrogenase (DHA) enzymes of three organisms isolated from soil and sediment-water interface were analysed in liquid culture studies. NAP and DHA activities were estimated from nitrite and triphenyl formazan were produced respectively after 4h incubation at 28 ± 2oC. Hg2+ completely inhibited NAP activity in Escherichia and Pseudomonas spp at all the concentrations (0.2 – 1mM) while progressive inhibitions of NAP activity were observed in Escherichia and Pseudomonas spp with increasing concentrations of Zn2+ and Cd2+. Both metals were stimulatory to NAP of Acinetobacter sp at 0.2 – 1mM. Apart from stimulation of DHA activity by Zn2+ (0.2 – 1mM) in Escherichia sp, Cd2+ (0.4 -1.0mM) in Acinetobacter sp and (1.0mM) in Pseudomonas sp, all the metals progressively inhibited DHA activities in the three organisms. In Escherichia sp, the activities of the two enzymes were negatively correlated on exposure to Zn2+ (r = -0.91) and positively correlated (r = >0.90) on exposure to Cd2+ and Hg2+. Based on IC50 values of the metals for the DHA and NAP enzymes, the most resistant of the three organisms were Escherichia sp and Acinetobacter sp respectively. Quantitatively, NAP with its lower IC50 values than DHA was a more sensitive toxicity measure for Hg2+ in all the organisms. The sensitivity of microbial metabolic enzymes to the toxic effects of metals varies with the type of enzyme, metal and the microorganism involved.
oai:ojs.unitau:article/139
2024-03-29T09:35:59Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/139
2024-03-29T09:35:59Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 3 No. 3 (2008); 114-127
Water Quality Evaluation of the Springs in Fernando de Noronha Island
Avaliado por Pares
da Motta Sobrinho, Maurício Alves; Universidade Federal de Pernambuco
da Silva, Valdinete Lins; UFPE
Montenegro, Abelardo A. A.; UFRPE
Montenegro, Suzana M. G. L.; UFPE
Correa, Marcus Metri; UFRPE
2008-12-22 18:40:57
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/139
pt
The Fernando de Noronha archipelago is composed by 21 islands. The biggest of them, the Fernando de Noronha island, is supplied in domestic water by two reservoirs, one rain-water collecting system and another system using sea water desalinization. In addition, this island is supplied by water from six secondary artificial ponds and some wells and springs. However, during the summer drought time, the island endures a water supply reduction that endangers the touristic activities, which are the main economical local financial source. In this concern, were evaluated the quality of the water from several sources for human supplying. Some measurements were performed “in site” and laboratory physical chemical analyses as well. It could be concluded that a further reorganization of the water supply system ought to be carried out in order to avoid future problems and risk of water supply collapse in this island.
oai:ojs.unitau:article/143
2024-03-29T09:35:59Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/143
2024-03-29T09:35:59Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 3 No. 2 (2008); 28-36
Occurrence of antimicrobial-resistant Enterobacteriaceae in water from different sources in a subtropical region of Argentina
Avaliado por Pares
Lösch, Liliana Silvina; Instituto de Medicina Regional - Universidad Nacional del Nordeste
Alonso, José Mario; Instituto de Medicina Regional - Universidad Nacional del Nordeste
Merino, Luis Antonio; Instituto de Medicina Regional - Universidad Nacional del Nordeste
2008-08-26 09:52:30
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/143
en
In order to determine the occurrence of antimicrobial-resistant Enterobacteriaceae, 506 samples of drinking water, surface water, and ground water were studied in the province of Chaco, Argentina. One hundred and ninety one isolates of Enterobacteriaceae Family members were obtained. The most frequent specie was Escherichia coli and it showed the highest rate of acquired resistance, being the ?-lactams the most affected antibiotics. The findings of the present work suggest that the occurrence of antimicrobial-resistant bacteria in aquatic ecosystems of Chaco may contribute to the environmental dissemination of antibiotic resistance.
oai:ojs.unitau:article/144
2024-03-29T09:35:59Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/144
2024-03-29T09:35:59Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 3 No. 2 (2008); 37-50
Dissolved inorganic carbon and pCO<sub>2</sub> in two small streams draining different soil types in Southwestern Amazonia, Brazil
Avaliado por Pares
Sousa, Eliete dos Santos; Universidade Federal do Acre
Salimon, Cleber Ibraim; Universidade Federal do Acre
Victoria, Reynaldo Luiz; Centro de Energia Nuclear na Agricultura
Krusche, Alex Vladimir; Centro de Energia Nuclear na Agricultura
Alin, Simone Rebecca; School of Oceanography, University of Washington
Leite, Nei Kavaguichi; Universidade Federal de Rondônia
2008-08-26 09:53:50
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/144
en
The objective of this study was to determine the dissolved inorganic carbon (DIC) and pCO2 concentrations in two third order streams in southwestern Amazonia, Brazil. From May 2004 to June 2005 water dissolved oxygen, pH, electrical conductivity, temperature were measured to stream water chemical and physical description. DIC and pCO2 measurements were made by headspace extraction and gas samples for pCO2 and DIC extractions were run on an infrared gas analyzer (IRGA, LI-COR Instruments model LI-820). Results indicate a relationship between soil type and water chemistry, where sandy soil stream presented lower pH than silty soil stream – consequently DIC and pCO2 concentrations also varied with soil type. Mean DIC concentration for sitly soil stream was 403±130 ?M month-1, while sandy soil stream DIC concentration was 170±59 ?M month-1. Free CO2 was the dominant form of DIC in both streams. Nevertheless, HCO3- contribuition to DIC was greater for the silty soil stream. DIC contentration also varied seasonally with greater values in the drier period. Absolute pCO2 values were greater for silty soil stream, mean 3067±1228 µatm month-1 and 2321±1020 µatm month-1 for sandy soil stream. Seasonality, pCO2 was higher in the dry season in both streams. Our findings have important implications on the role of soil type in water chemistry and carbon dynamics and also are used in other studies on carbon balance at the landscape level.
oai:ojs.unitau:article/148
2024-03-29T09:35:59Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/148
2024-03-29T09:35:59Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 4 No. 2 (2009); 106-114
Geoelectrical characterization of contaminants from domiciliary solids waste decomposition
Avaliado por Pares
Moreira, César Augusto; UNESP
Braga, Antonio Celso de Oliveira; UNESP
2009-08-29 16:48:14
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/148
pt
This paper presents the results of the Electrical Resistivity geophysical method applied to determine the area of leaching migration originated from solids waste decomposition, disposed in ditch type landfill. When the monitoring of wells or other direct techniques of the environmental investigation is not possible, the geological characterization, supported by geophysics techniques is an alternative for the assessment and monitoring leached materials. The absence of values below 100 ?.m in the reference line at 4 m of depth and the occurrence of these values in the residues ditches and its surroundings indicate the presence of leachate. This relation is a result of the high content of total dissolved solids that characterize the studied contaminant that reduces the electric resistivity.
oai:ojs.unitau:article/153
2024-03-29T09:35:59Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/153
2024-03-29T09:35:59Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 4 No. 1 (2009); 45-57
Production and properties of alpha-amylase from Citrobacter species
Avaliado por Pares
Orji, Justina Chibuogwu; Federal University of Technology, Owerri, Imo State, Nigeria
Nweke, Christian Okechukwu; Federal University of Technology, Owerri, Imo State, Nigeria
Nwabueze, Rose N.; Federal University of Technology, Owerri, Imo State, Nigeria
Nwanyanwu, Christopher E.; Federal University of Technology, Owerri, Imo State, Nigeri
Alisi, Chinwe S.; Federal University of Technology, Owerri, Imo State, Nigeri
Etim-Osowo, Ebuta N.; Federal University of Technology, Owerri, Imo State, Nigeri
2009-04-23 14:33:20
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/153
en
Amylase production by Citrobacter sp. isolated from potato was optimized in batch culture studies under shake flask conditions. Effects and interactions of best sources and levels of carbon and nitrogen estimated by 4 x 5 and 4 x 4 factorial experimental arrangements were significant (P < 0.01) on amylase production. Optimal alpha-amylase yield was obtained in a medium containing sorghum flour (2.0 % w/v) and a mixture of (NH4)2SO4 + soybean meal (1.5% w/v) with an initial medium pH of 8.0. Under optimum conditions, amylase yield was maximal (0.499 U/ml) after 60h incubation at room temperature (28oC ± 2oC). Characterization studies showed that the enzyme had maximum activity at 60oC, retained 100% of its original activities at 60oC for 2h, was maximally active at pH 7.0 and retained 100% of original activities at pH 9.0 for 2h. Enzyme activity was stimulated by urea, Mg2+, Ca2+ and Zn2+ but inhibited by Hg2+.
oai:ojs.unitau:article/155
2024-03-29T09:35:59Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/155
2024-03-29T09:35:59Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 3 No. 3 (2008); 28-42
Water deficit and water surplus maps for Brazil, based on FAO Penman-Monteith potential evapotranspiration
Avaliado por Pares
Sentelhas, Paulo Cesar; Universidade de São Paulo
dos Santos, Dayana Lardo; ESALQ/USP
Machado, Ronalton Evandro; Irrigart Recursos Hídricos e Geoprocessamento
2008-12-22 18:41:47
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/155
en
The climatological water balance (CWB) proposed by Thornthwaite and Mather (1957) is a useful tool for agricultural planning. This method requires the soil water holding capacity (SWHC), rainfall (R) and potential evapotranspiration (PET) data as input. Among the methods used to estimate PET, the one proposed by Thornthwaite (1948) is the simplest and the most used in Brazil, however it presents limitations of use, which is caused by its empirical relationships. When Thornthwaite PET method is used into the CWB, the errors associated to PET are transferred to the output variables, mainly water deficit (WD) and water surplus (WS). As all maps of WD and WS for Brazil are based on Thornthwaite PET, the objective of this study was to produce new maps of these variables considering Penman-Monteith PET. For this purpose, monthly normal climate data base (1961-1990) from Brazilian Meteorological Service (INMET), with 219 locations in all country, was used. PET data were estimated by Thornthwaite (TH) and FAO Penman-Monteith (PM) methods. PET, from both methods, and R data were used to estimate the CWB for a SWHC of 100 mm, having as results actual ET (AET), WD and WS. Results obtained with PET from the two methods were compared by regression analysis. The results showed that TH method underestimated annual PM PET by 13% in 84% of the places. Such underestimation also led to AET and WD underestimations of 7% (in 69% of places) and 40% (in 83% of places), respectively. For WS, the use of TH PET data in the CWB resulted in overestimations of about 80% in 78% of places. The differences observed in the CWB variables resulted in changes in the maps of WD and WS for Brazil. These new maps, based on PM PET, provide more accurate information, mainly for agricultural and hydrological planning and irrigation and drainage projects purposes.
oai:ojs.unitau:article/156
2024-03-29T09:35:59Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/156
2024-03-29T09:35:59Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 3 No. 3 (2008); 55-66
Studies on contaminant transport at an industrial waste dumpsite of Bangalore, India
Avaliado por Pares
Mohammed, Syed Abu Sayeed; HKBK College of Engineering
Naik, Maya; BMS College of Engineering
Pathpalya Fakruddin, Sanaulla; HKBK College of Engineering
Mohammed Nazeer, Zulfiqar Ahmed; HKBK College of Engineering
2008-12-22 18:42:49
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/156
en
Industrialization and urbanization has produced various types of wastes that sometimes are dumped in low-lying areas without proper treatment and engineering controls. Bangalore district has more than 60 illegal dumpsites consisting of either municipal or industrial waste. Government records indicate that more than 1,500 industries are working at various industrial areas and other locations around the city. In the present study an attempt has been made to characterize the Bommasandra industrial area dump site located at the south of Bangalore. This dump site is 15 to 20 years old and spreads on an area of 12.7 acres. Around 60 to 70 industries of all nature are located around this dump site. A large number of soil samples were collected and after site characterization of soil properties, an attempt has been made to predict the transport behavior of selected chemical species using available mathematical models and a program based on MATLAB- 7 to study the migration properties of these selected chemical species as a function of time. Also a model provided by USEPA DRASTIC has been used. The DRASTIC Index found for this dumpsite was 146; therefore, one can conclude that the studied dumpsite is moderately vulnerable to pollutants. The migrating behavior of cations such as sodium, calcium and anions such as sulphate, chloride were considered. It was observed that cations are better retarded in comparison to anions. This was attributed to exchangeable chemical reactions.
oai:ojs.unitau:article/160
2024-03-29T09:35:59Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/160
2024-03-29T09:35:59Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 3 No. 3 (2008); 143-155
Rivers rapid assessment protocols and insertion of society in monitoring of water resources
Avaliado por Pares
Rodrigues, Aline Sueli de Lima; Universidade Federal de Ouro Preto
Malafaia, Guilherme; Universidade Federal de Ouro Preto
Castro, Paulo de Tarso Amorim; Universidade Federal de Ouro Preto
2008-12-22 18:44:40
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/160
pt
The degradation of water resources has been detected and changes both institutional and in the legislation have been demanded. The careless use of rivers has ecological changes as direct consequence, causing serious modifications in the landscape and fluvial regime, besides altering the availability of habitats and the trophic composition of the aquatic environment. Pressed by this scenario, scientists have been developing assessment methods that are efficient both for the evaluation itself and for supporting decision taking in the environmental management processes. In this perspective, the objective of this study is to present the Rapid River Assessment Protocols (RAPs) and to emphasize how these protocols can promote the community participation in water resources monitoring. The RAPs can used to evaluate in an integrated form the characteristics of a river section according to the conservation or degradation condition of the fluvial environment and it is characterized by its economic viability and easy applicability. In regions with poor financial resources and serious problems of water quality, the RAPs can be used in environmental management programs. By using these protocols, the integration of the community in water resources monitoring generates data which represent the quality of fluvial ecosystems throughout time, without requesting high costs or specialized professionals. The RAPs in a simplified but not simplistic tool, which can be used in activities that aim at promoting a quick and reliable assessment of the “health” of a river.
oai:ojs.unitau:article/161
2024-03-29T09:35:59Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/161
2024-03-29T09:35:59Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 4 No. 1 (2009); 81-92
Validation of the method for determining the 3 – indolacetic acid in water from rivers by high performance liquid chromatography
Avaliado por Pares
Sanches, Sérgio Marcos; Escola de Enfermagem de Ribeirão Preto/USP
Martins, Renata; Instituto de Química de São Carlos/USP
Cordeiro, Paulo Jorge Marques; Instituto de Química de São Carlos/USP
Vaz, Luiz Augusto Artemonte; Empresa Agrolatino Matão
Vieira, Eny Maria; Instituto de Química de são Carlos/USP
2009-04-23 14:46:42
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/161
pt
The 3 – indolyacetic acid is an important natural phytohormone in plants in low concentrations. The 3 – indolyacetic acid is involved in the regulation of many processes of growth and plants development. This study developed and validated an analytical method to quantify 3- indolyacetic acid using the Hight-Performance Liquid Chromatography with DAD detector. The following parameters were chosen: detection and quantification limits, linearity, calibration curve, precision, sensibility and assays of recovery. The calibration curve was obtained with five points based on standard solution. The method presented detection and quantification limits of 0.05 and 0.5 mg L-1, respectively. It showed linearity in the interval of 0.5 to 10 μg L-1 and correlation coefficients higher than 0.99. These results allow the conclusion that the method can be considered efficient and that it could be used to monitor 3 – indolyacetic acid in natural water.
oai:ojs.unitau:article/169
2024-03-29T09:35:59Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/169
2024-03-29T09:35:59Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 3 No. 3 (2008); 20-27
Heterotrophic components of soil respiration in pastures and forests in southwestern Amazonia, Acre, Brazil
Avaliado por Pares
Salimon, Cleber Ibraim; universidade federal do acre
Davidson, Eric Atlas; woods hole research center
2008-12-22 18:45:40
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/169
en
In this paper we present data on soil microbial biomass and heterotrophic respiration in pastures, mature and secondary forests, in order to elucidate their contribution to total CO2 flux from soil to atmosphere. The research was conducted in Southwestern Amazonia, Acre State, Brazil. Microbial biomass was estimated using a variation of the traditional fumigation-extraction method and heterotrophic respiration was measured using respirometry flasks attached to an infrared gas analyzer. Soil microbial biomass and heterotrophic respiration did not differ statistically among pastures, mature and secondary forests. These laboratory results indicate that higher CO2 fluxes from pasture soils measured in situ are probably due to higher root respiration by pasture grasses.
oai:ojs.unitau:article/170
2024-03-29T09:35:59Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/170
2024-03-29T09:35:59Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 4 No. 1 (2009); 20-36
Influence of additives on the retention of metal ions in a soil of Bangalore, India
Avaliado por Pares
Mohammed, Syed Abu Sayeed; HKBK College of Engineering
Naik, Dr Maya; BMS College of Engineering
Tanveeruddin, Syed; HKBK College of Engineering
2009-04-23 14:18:54
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/170
en
Liners play an important role in minimizing migration of contaminants and are frequently constructed with natural materials serving as the primary barrier to contain chemicals and potentially harmful pollutants from municipal toxic waste leachates. To improve the performance of liners, additives like lime and cement at low percentages were added to Red Soil of Bangalore. Heavy metals like hexavalent chromium, copper and zinc and alkali metals like sodium and potassium were taken as contaminants. Batch leaching tests on 50 samples were performed according to ASTM D 3987 – 85 for soil and soil mixtures with contaminants. The heavy metals were potentiometrically monitored using ion selective mercury and platinum electrodes. The alkali metals were determined using a Flame Photometry. It has been observed that the retention of heavy metals elements followed the order copper> zinc>chromium over a period of 7 to 28 days. Chromium, zinc and copper attained equilibrium in this period as confirmed based on conductivity and pH data. Cement and lime had significant effect on copper and zinc. Specific adsorption of Cu onto CaCO3 surfaces may control Cu concentration in solution. Zn adsorption increases with pH; Zinc hydrolysed at pH > 7.7 and these hydrolyzed species are strongly adsorbed to soil surfaces. Cr was retained only by 50% and additives did not have much effect as it is subjected to nonspecific adsorption (temporary). Cr was found to be highly mobile in alkaline soils. It was observed that the retention of alkali metals follows the order: K > Na. Cement and lime had positive effect on the retention of Na and K. Sodium ion retarded immediately due to the removal of exchangeable cations, whereas potassium retarded more than sodium due to the lower hydrated radius of potassium. Scanning Electron Microscopy (SEM) characterization tests were performed to understand the soil mineral structure. Regular porous, sponge like, particles were detected in virgin soil containing crystals possibly of alumino sicilicate. Energy Dispersive Spectroscope (EDS) analysis indicated the presence of Si, Al, Ca, Ti, Fe, K, and Na. These results indicate the possibility of using Red Soil as an adsorbent.
oai:ojs.unitau:article/176
2024-03-29T09:35:59Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/176
2024-03-29T09:35:59Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 4 No. 1 (2009); 169-182
Application of conditional probability and the Markov chain process in the analysis occurrence of dry and rainy periods in Garanhuns, Pernambuco, Brazil
Avaliado por Pares
Andrade, Antonio Ricardo; Universidade Federal Rural de Pernambuco - UFRPE
de Freitas, Joherlan Campos; Universidade Federal de Campina Grande
de Brito, José Ivaldo Barbosa; Universidade Federal de Campina Grande
Guerra, Hugo Orlando Carvallo; Universidade Federal de Campina Grande – UFCG
Xavier, Josilda de França; Universidade Federal de Campina Grande – UFCG
2009-04-23 16:35:06
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/176
pt
Agriculture presents dependence on the climatic conditions, especially on precipitation. This way, it is necessary to study the probabilities of occurrence of rain in Garanhuns municipality, Pernambuco State, especially due to its irregularity, to support farmer’s decisions about agriculture activities. The objectives of this study were to forecast monthly rainfall at different significance levels and to determine the probabilities of occurrence of dry and rainy periods for Garanhuns region, state of Pernambuco, Brazil. Monthly rainfall data from 1913 to 1987 were analyzed. The criteria to identify dry and rainy periods were based on four classes of monthly rainfall: (S) dry month, from 0 to 50 mm; (PC) low rain month, from 50 to 100 mm; (C) rainy month, from 100 to 200 mm and (BC) very rainy month, above 200 mm. Thus, the monthly averages were analyzed according to the four classes of rains to estimate the probable occurrence of rain following Robertson (1976). The Gamma probability distribution was also used to forecast monthly precipitation, at the following levels: 90, 80, 75, 70, 60, 50, 40 and 30% of probability. The Gamma distribution adjusted well to the data of Garanhuns region, making possible the estimation of the probable rainfall amounts for each month of the year, at different levels of probability. Rainy season was the period between May and August, and the dry one between October and December. The lowest probable monthly rainfalls, below 50 mm, were observed between October and December, when irrigation is required for food production, being recommended to plant annual crops and cultivars of short cycle to be sowing in October, and of long cycle to be sowing in April, in order to reduce the risks of damage.
oai:ojs.unitau:article/177
2024-03-29T09:35:59Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/177
2024-03-29T09:35:59Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 4 No. 3 (2009); 196-210
Growth of castor bean plant under different types of wastewaters and soil water levels
Avaliado por Pares
Xavier, Josilda de França; UEPB
Azevedo, Carlos Alberto Vieira de; Universidade Federal de Campina Grande
Beltrão, Napoleão Esberard de Macêdo; EMBRAPA
Andrade, Antonio Ricardo Santos de; UFRPE
Lima, Vera Lúcia Antunes de; UFCG
2009-12-21 09:45:48
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/177
pt
This work evaluated the effect of different levels of water into the soil and types of treated wastewaters from industries of Campina Grande city, Paraíba state, on the growth of castor bean plant, variety BRS Nordestina. The experiment was conducted in greenhouse of the National Center of Research of Cotton. The experimental design was in entirely randomized blocks with 15 treatments in scheme of additional factorial analysis [(4 x 3) + 3] with three replications, having the following factors: three types of treated wastewaters and water of provisioning (A1 = IPELSA - Industry of Cellulose and Paper of Paraíba S/A; A2 = COTEMINAS - Industry of improvement of cotton fiber S/A; A3 = ILCASA - Industry of dairy products of Grande S/A (LEBOM); A4 = Water of the network of public provisioning of Campina Grande city, three levels of available soil water (AW) (N1 = 100%, N2 = 80% and N3 = 70%) and three controls, one for each AW with water of provisioning and with inorganic fertilizer in the foundation (A4C). In order to evaluate the growth of the castor bean plant during a period of 135 days, biweekly measures of the plant height, diameter of the stem and total foliar area variables were accomplished. For all growth variables there were significant interactions among the studied factors, denoting the interdependence among them, what was reflected on the growth of the plants. The castor bean plant, variety BRS Nordestina, responded well to irrigation with treated wastewater, especially from COTEMINAS industry mainly when associated to the level of 100% of the available soil water.
oai:ojs.unitau:article/179
2024-03-29T09:35:59Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/179
2024-03-29T09:35:59Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 3 No. 3 (2008); 67-80
Spatial variability of discharge and pressure in subunit of microsprinkler irrigation with used and new emitters
Avaliado por Pares
Alves, Wagner Walker de Albuquerque; UFCG
Dantas Neto, José; UFCG
Matos, José de Arimatea de; UFERSA
Azevedo, Carlos Alberto Vieira de; Universidade Federal de Campina Grande
Lima, Vera Lúcia Antunes de; UFCG
2008-12-22 18:46:30
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/179
pt
This work studied in field the spatial distribution of discharge and pressure in subunit irrigated by microsprinkler, considering used and new emitters. The data were collected in 28 emission points spaced in 10 x 18 m. The mean values were submitted to normality test and also to a geostatistical analysis; the verification of the spatial dependence and of the interpolation was accomplished by the method of krigagem and the spatial continuities were studied by means of semivariograms for the discharges and pressures of the subunit with new and used microsprinklers. It is verified that the models varied if the emitter was new or used. The mathematical model that better adjusted to the discharge of the new and used emitters was, respectively, exponential and spherical; for the pressure, the model was the inverse of the discharge, that is, spherical for new emitters and exponential for used ones. The values for the used emitters of the nugget effect (Co), landing (Co+Cl) and reach (Ao) were of l.0 L h-1, 33 L h-1 and 218 m and of 0.43, 137 kPa and 58 m, for discharge and pressure, respectively. The coefficient of irrigation uniformity, the coefficient of uniformity of the system and the water application efficiency increased, respectively, in 11.9, 10.58 and 10.75%, when the used emitters were substituted by new ones. The maximum distance (reach) where the estimated data of discharge and pressure are spatially correlated extrapolated the length of the derivation line for the discharge with new and used microsprinklers and for the pressure only with new microsprinklers. The nugget effect for the pressure in the system was smaller when it was changed the used microasprinklers by new ones, the inverse was observed for the discharge. There was an increase in pressure as well as in discharge when the used microsprinklers were changed by new ones.
oai:ojs.unitau:article/180
2024-03-29T09:35:59Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/180
2024-03-29T09:35:59Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 3 No. 3 (2008); 43-54
Rainfall-runoff process analysis of the Pequeno River catchment, Curitiba metropolitan region, Brazil, with two hydrological models
Avaliado por Pares
Chaffe, Pedro Luiz Borges; Universidade Federal de Santa Catarina
Silva, Roberto Valmir da; Universidade Federal de Santa Catarina
Kobiyama, Masato; Universidade Federal de Santa Catarina
2008-12-22 18:47:19
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/180
en
The rainfall-runoff process of the Pequeno River catchment, located in the Curitiba metropolitan region, Paraná State, Brazil was analyzed with two hydrological models, TOPMODEL and HYCYMODEL. Both models were applied to a series of 3360 hourly-observed rainfall-runoff data. The simulations of those models were compared in terms of total runoff generation and hydrograph separation. The uncertainty intervals were estimated for each model using the GLUE method. Both models presented a satisfactory and similar efficiency for the total runoff simulation. The ratio between total runoff and total precipitation was 0.79, 0.81 and 0.74 for the observed data, those calculated with TOPMODEL and with HYCYMODEL, respectively. The models also estimated a large quantity of the baseflow contributing to the total runoff (77.7% with TOPMODEL and 84.5% with HYCYMODEL), but there was a significant difference of those quantities between the models. The surface flow analysis showed that TOPMODEL considered that the catchment saturates and drains faster than HYCYMODEL.
oai:ojs.unitau:article/182
2024-03-29T09:35:59Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/182
2024-03-29T09:35:59Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 4 No. 1 (2009); 142-155
Effect of the decommissioned Roger open dump, João Pessoa, Brazil, on local groundwater quality
Avaliado por Pares
Athayde Júnior, Gilson Barbosa; UFPB
Nóbrega, Claudia Coutinho; UFPB
Gadelha, Carmem Lúcia Moreira; UFPB
de Franca Souza, Irene Monteiro; UFPB
Fagundes, Giulliano de Souza; UFPB
2009-04-23 16:18:10
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/182
pt
Throughout 45 years (1958-2003) the solid wastes from João Pessoa were disposed off in the former Roger’s open dump, which is situated adjacent to the mangrove at the sides of Sanhauá river, intensifying environmental problems and threatening the health of people living nearby. Between 1999 and 2003 the decommissioned open dump received wastes from the cities of Cabedelo and Bayeux. Several environmental impacts result from this inadequate disposal of solid wastes, including the pollution of groundwater nearby the former Roger´s open dump, which is the major point of investigation of this paper. The water quality of 6 wells situated in the region of influence of the open dump were monitored. Results have shown that the groundwater near the open dump cannot be drunk by the population without previous treatment, since it has some parameters of water quality in discordance with Brazilian legislation concerned with drinking water. Results have also shown that the level of pollution is higher in the wells closer to the open dump.
oai:ojs.unitau:article/184
2024-03-29T09:35:59Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/184
2024-03-29T09:35:59Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 4 No. 1 (2009); 6-19
Accumulation, distribution and toxicological effects induced by chromium on the development of mangrove plant Kandelia candel (L.) Druce
Avaliado por Pares
Rahman, Mohammed Mahabubur; Dhaka Imperial College, Dhaka, Bangladesh
Chongling, Yan; School of Life Sciences, Xiamen University
Rahman, Md. Motiur; Slivacom Ltd. Edmonton, Alberta, Canada
Islam, Kazi Shakila; The School of Oceanography and Environmental Science, Xiamen University
2009-04-23 14:04:51
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/184
en
A study was performed for investigating accumulation, distribution and toxicological effects induced by chromium (Cr) on the development of the mangrove seedling Kandelia candel (L.) Druce. Seedlings treated with increasing concentrations of CrCl3 solution (0, 0.5, 1, 1.5, 2, 2.5, 3 mg L-1, respectively) were grown in a basic nutrient solution for three months. The five month old seedlings were harvested for the experiment. This study showed that Cr treatment significantly decreased growth of K. candel in terms of seedling height, leaf number and total biomass. At the highest 3 mg L-1 Cr exposure, there was a 34.47% decrease in final seedling height, 68.95% decrease in leaf number and a 60.65% decrease in total biomass. The present study demonstrates that Cr accumulation ability of K. candel seedlings increased with the increase of treatment strength up to certain level. The concentrations of Cr in root, hypocotyl, stem and leaf ranged from 22.87 to 1.43 mg kg-1, 1.30 to 0.68 mg kg-1, 2.42 to 0.91 mg kg-1, and 1.74 to 0.74 mg kg-1, respectively. When comparing Cr concentration in different plant parts with respect to their controls, the results showed that treated plant root bioaccumulated high amounts of Cr. Almost 80% of Cr was accumulated mainly in roots. The distribution pattern of Cr in K. candel was Root > Stem > Leaf > Hypocotyl. Our findings indicated that the high concentration of Cr supply may interfere with several metabolic processes of seedlings, causing toxicity to plants as exhibited by chlorosis, necrosis, and finally, plant death.
oai:ojs.unitau:article/185
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ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/185
2024-03-29T09:35:59Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 4 No. 1 (2009); 37-44
Diversity and abundance of aquatic macroinvertebrates in a lotic environment in Midwestern São Paulo State, Brazil
Avaliado por Pares
Silva, Fabio Laurindo da; Universidade Federal de São Carlos
Moreira, Diana Calcidoni; Universidade Estadual Paulista
Ruiz, Sonia Silveira; Universidade Paulista
Bochini, Gabriel Lucas; Universidade Estadual Paulista
2009-04-23 14:25:07
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/185
en
This study analyzed the diversity and abundance of an aquatic macroinvertebrate community in the Vargem Limpa stream located in Bauru, Midwestern São Paulo State, and characterized the water quality based on biological parameters. The sampling was carried out during the rain season (December, 2004). It was analyzed and identified 3,068 organisms belonging to 9 macroinvertebrate families. The system showed low richness and diversity of organisms in response to water quality.
oai:ojs.unitau:article/186
2024-03-29T09:35:59Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/186
2024-03-29T09:35:59Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 4 No. 1 (2009); 58-80
Mapping and analysis of the groundwater potability in the Lajeado municipality, Rio Grande do Sul State, Brazil
Avaliado por Pares
Eckhardt, Rafael Rodrigo; Centro Universitário UNIVATES
Diedrich, Vianei Luís; Centro Universitário UNIVATES
Ferreira, Everaldo Rigelo; Centro Universitário UNIVATES
Strohschoen, Eduardo; Centro Universitário UNIVATES
Demaman, Letícia Craide; Município de Lajeado
2009-04-23 14:40:56
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/186
pt
The groundwater sources spread in extensive areas and are relatively protected from pollution agents when compared to rivers and artificial reservoirs. These aspects, combined with low exploitation costs, provided a considerable growth in the groundwater use in the last decades. Groundwater became an important alternative source for public water supply in Brazil. This paper shows the georeferenced location of the groundwater exploitation points in the Lajeado, RS municipality and the potability analysis of this water. The groundwater exploitation in the study area is accomplished in the Serra Geral and Guarani aquifers and the exploitation points were identified in field campaigns using a GPS receiver and plotted over satellite imagery using remote sensing and geoprocessing techniques. The groundwater potability assessment was based on 100 samples for microbiological and physico-chemical analyses that included 78 samples of tubular wells and 22 of dug wells. Contour maps were generated for the analyzed parameters in the tubular wells, using geostatistics procedures. In this study, 362 tubular wells and 253 dug wells were studied. The results show that the dug wells are located mainly in rural areas and 77.27% of them aren’t suitable for human consumption due to high levels of contamination. The tubular wells are concentrated in urban areas and results revealed that 76.92% of them have water with suitable quality for the human consumption.
oai:ojs.unitau:article/188
2024-03-29T09:35:59Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/188
2024-03-29T09:35:59Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 4 No. 1 (2009); 117-131
Development and evaluation of TDR probe for water rational management on substrates used in forest seedlings production
Avaliado por Pares
Elaiuy, Marcelo Leite Conde; Departamento de Engenharia Civil - UNITAU
Sato, Lucas Masayuki; Departamento de Engenharia Civil - UNITAU
Varallo, Antonio Claudio Tesla; Departamento de Engenharia Civil – UNITAU
Souza, Claudinei Fonseca; Universidade Federal de São Carlos - CCA/UFSCar
2009-04-23 16:02:09
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/188
pt
Time Domain Reflectometry (TDR) is a reliable technique to estimate in situ moisture content in different types of materials using probes. The forest seedlings production implies in a comprehensive and empirical process of water management applied to the substrate used for cultivation in dibble-tube. This type of cultivation requires analysis of the physical characteristics of water and nutrients retention of the substrate. The main goal of this research was to develop and evaluate a TDR coaxial probe for rational management of water in the forest seedlings production. Initially, a physical validation of the probe was performed considering the following parameters: reflection coefficient, characteristic impedance and spatial sensitivity. Also, the performance of the probe was evaluated to estimate water content in laboratory conditions and we obtained a calibration curve for each type of porous material used. The results demonstrated the viability of TDR probes to estimate water content in soil and substrates.
oai:ojs.unitau:article/197
2024-03-29T09:35:59Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/197
2024-03-29T09:35:59Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 4 No. 1 (2009); 132-141
Trophic state of water in the watershed of Lake Mirim, RS, Brazil
Avaliado por Pares
Fia, Ronaldo; Universidade Federal de Viçosa
Teixeira de Matos, Antonio; Universidade Federal de Viçosa
Carteri Coradi, Paulo
Pereira-Ramirez, Orlando
2009-04-23 16:10:40
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/197
pt
The objective of this work was to analyze the spacetime variations in the trophic characteristics of the principal water bodies feeding Lake Mirim, in the state of Rio Grande do Sul, by determination of the Trophic State Index proposed by Toledo Jr. (IETT) and Lamparelli (IETL), to assess water quality data between 1996 and 1998. It was verified that the lotic environments presented greater eutrophication conditions when evaluated by the Toledo Jr. methodology, in which the IETT varied from Eutrophic to Hypereutrophic. However, the evaluated environments showed variations from Mesotrophic to Hypereutrophic for the IETL when evaluated according to the Lamparelli methodology. From the classification proposed by Toledo Jr., lentic water bodies were considered Mesotrophic (IETT > 44) and Hypereutrophic (IETT > 74), while the Lamparelli method classified them as Eutrophic (IETL > 59) and Hypereutrophic (IETL > 67). Concentrations of phosphorus encountered in all water samples were greater than the limits established by the CONAMA Resolution n. 357, 2005, for class 2 water bodies, probably due to the discharge of untreated domestic and industrial wastes into the waters.
oai:ojs.unitau:article/198
2024-03-29T09:35:59Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/198
2024-03-29T09:35:59Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 4 No. 1 (2009); 93-116
Vulnerability of the watersheds by universal equation of soil loss and thematic integration of morphometric, topographical, hydrological an land use/land cover parameters in Rio de Janeiro State, Brazil
Avaliado por Pares
Costa, Thomaz Correa e Castro; Embrapa
Fidalgo, Elaine Cristina Cardoso; Embrapa Solos
Naime, Uebi Jorge; Embrapa Solos
Guimarães, Saulo Pedrinha; EPE
Zaroni, Maria José; Embrapa Solos
Uzeda, Mariella Camardelli; Embrapa Agrobiologia
2009-04-23 15:08:22
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/198
pt
Watersheds delimited in the Rio de Janeiro State were parameterized by means of two methods indicate that a measure of environmental vulnerability, the universal equation of soil loss, which estimates the loss of soil in tones per hectare per year, and thematic integration of morphometric, topographical, hydrological an land use/land cover parameters, that result at vulnerability index. The parameters involved and the results were compared to verify the degree of association between methodologies, concluding that these methods are complementary to indicate the vulnerability of watersheds.
oai:ojs.unitau:article/206
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ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/206
2024-03-29T09:35:59Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 4 No. 2 (2009); 115-123
Spatial analysis of diarrheal diseases in Vale do Paraíba, Brazil
Avaliado por Pares
Nascimento, Luiz Fernando Costa; UNITAU
2009-08-29 16:54:43
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/206
pt
The study of the spatial patterns of transmission of intestinal infectious diseases allows the development of methodologies to control the dispersion of these diseases. The aim of this study was to identify spatial patterns of hospitalization by diarrheal disease in the Paraíba Valley, Sao Paulo, Brazil, using geoprocessing techniques. The hospitalization records were obtained from DATASUS and analysed by rates, Human Development Index (HDI), sanitation and water coverage percentages; the data were analyzed using the TerraView software. The global Moran coefficient was used to identify spatial clusters. It was possible to identify a spatial cluster in the central region of the Paraiba Valley and in the region of the Mantiqueira Mountains. Correlation between hospitalization by diarrhea and other variables was not observed. The diarrhea is a multifactorial disease, but geoprocessing approach may provide subsidies to implement policies to minimize this problem for the public health service.
oai:ojs.unitau:article/210
2024-03-29T09:35:59Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/210
2024-03-29T09:35:59Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 4 No. 2 (2009); 75-92
Quality of water resources in the Amazon region- Rio Tapajós: assessing the case for chemical elements and physical-chemical parameters
Avaliado por Pares
Miranda, Rafaella Galvão; Universidade Federal do Pará
Pereira, Simone de Fátima Pinheiro; Universidade Federal do Pará
Alves, Daniela Teresa Valeriano; Universidade Federal do Pará
Oliveira, Geiso Rafael Fonseca; Universidade Federal do Pará
2009-08-28 15:16:59
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/210
pt
The Tapajós river is the main rivers of the Pará State and part of the Amazon basin is the largest world river basin, however, the population growth and development of agriculture in the region has generated the input of contaminants in this important river. The objective of this study was to evaluate the water quality of the Tapajós river in the presence of metals and physico-chemical parameters based on the CONAMA 357-05 resolution. Seven sampling stations were selected along the river in the surface, intermediate and bottom layers in low rainfall periods. The elements Ca, Mg, Al, Fe, Ba, Mn, Sr, Ti, Ag, Be, Cd, Co, Cr, Cu, Mo, Ni, Pb and Zn were determined using the inductively coupled plasma atomic emission spectrometry (ICP-AES), As was determined by ICP-AES with hydride generation, Hg was determined by cold vapor atomic absorption and the physico-chemical parameters were evaluated using various techniques. In almost all respects the elements Al and Fe are not presented in accordance with the values allowed by Brazilian legislation, with average values of 280.01 ± 294.69 ?g/L and 564.89 ± 326.5 ?g/L, respectively. There were excellent correlations between Ca and Mg, Ca and Sr, Mg and Sr, Mn and Ba, Sr and OD, Mg and OD. The Tapajós River showed high levels of Al and Fe that compromises the quality of this important river of the Amazon and can cause problems for the health of the population.
oai:ojs.unitau:article/211
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ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/211
2024-03-29T09:35:59Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 4 No. 2 (2009); 188-199
Water infiltration capacity under different land uses and agricultural management practices
Avaliado por Pares
Pinheiro, Adilson; Universidade Regional de Blumenau
Teixeira, Lizandra Poeta; Universidade Regional de Blumenau
Kaufmann, Vander; Universidade Regional de Blumenau
2009-08-29 17:35:39
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/211
pt
Knowledge of physical and hydraulic properties of soil is important for the appropriate use and management of soil, and for the understanding of dynamic movement process of water and solutes. This study aims to determine the soil infiltration capacity of the Concordia Experimental Basin, located in the municipality of Lontras in Santa Catarina state. The infiltration tests were performed with the concentric ring infiltrometer, with a diameter of 25 and 50 cm on twenty sampling points showing different uses of land and agricultural management practices. The initial capacity of infiltration, calculated by Horton's equation, ranged from 0.8 (pasture) to 5.0 cm min-1 (pine forest and cassava planting). In pasture areas, the initial infiltration ranged from 0.8 to 0.9 cm min-1. Regarding the minimum value, they ranged from 0.01 (perennial pasture) to 0.3 cm min-1 (minimum tillage for corn). In forest areas, the minimum infiltration varied between 0.05 and 0.15 cm min-1 and in the areas of pasture, it was equal to 0.01 cm min-1.
oai:ojs.unitau:article/212
2024-03-29T09:35:59Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/212
2024-03-29T09:35:59Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 4 No. 2 (2009); 200-211
Characterization of Metals in atmospheric precipitation in an Ombrophyllous Mixed Forest
Avaliado por Pares
Beló, Andressa; UNICENTRO
Quináia, Sueli Pércio; UNICENTRO
de Oliveira, Nayara Kaminski; UNICENTRO
Watzlawick, Luciano Farinha; UNICENTRO
2009-08-29 17:45:46
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/212
pt
This work addresses some aspects related to the study of metals content evaluation from atmospheric precipitation considering both the fraction dissolved and the particulate matter in forest of Guarapuava region, PR. Samples of atmospheric precipitation were collected using collectors of total precipitation located inside and outside of a forest patch. Samples were collected during 12 months and the analyzed parameters were pH, conductivity, Al, Cd, Cr, Fe, Mn, Ni and Pb. The PCA (Principal Components Analysis) was performed and indicated that each rain event was responsible for the discrimination of samples from each sample collected within and outside the forest. Results of pH measurements revealed the occurrence of slightly acidic precipitation. Some metal had values above CONAMA nº 357 acceptance values. Toxic metals of anthropogenic origin were found demonstrating that weather phenomena contributed to the dispersion of pollution from urban areas.
oai:ojs.unitau:article/213
2024-03-29T09:35:59Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/213
2024-03-29T09:35:59Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 4 No. 2 (2009); 135-146
Institutional aspects and groundwater allocation for industrial uses in low Paraíba river basin, Paraíba state, Brazil
Avaliado por Pares
Guimarães, Patricia Borba Vilar; UFRN
Ribeiro, Marcia Maria Rios; UFCG
2009-08-29 23:22:11
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/213
pt
This paper presents an institutional study of groundwater regulation and industrial use in Paraiba, Brazil, with special emphasis on the interactions between the status quo and the current National Water Resources Policy which is based on Federal Law No 9.433/97 and some specific regulations in water rights concession issued by the environmental agencies and water legislation. Based on data from primary sources and information provided by water resources management institutes, detailed analyses of groundwater use in order to establish some parameters to facilitate implementation of national policies in an integrated manner were done. The data analysis and the results showed that water resources management processes need to be fostered for the region.
oai:ojs.unitau:article/215
2024-03-29T09:35:59Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/215
2024-03-29T09:35:59Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 4 No. 2 (2009); 147-155
Spatial and temporal analysis of the land cover in riparian buffer zones (Areas for Permanent Preservation) in Sorocaba City, SP, Brazil
Avaliado por Pares
da Silva, Alexandre Marco; UNESP
Silveira, Felipe Muniz; UNESP
Ikematsu, Priscila; UNESP
de Paula, Fabiolla Pereira; Bunge Fertilizantes S/A
Bomback, Michele; Unesp
Nogueira, Davi Pajaro; Secret Estadual de Meio Ambiente - SP
Alves, Sergio Henrique; Codevasf
2009-08-29 17:09:55
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/215
pt
Considering the fundamental role that the riparian vegetation plays in relation to maintenance of the environmental health of a watershed and the necessity of restoring sectors of the buffer zone without natural vegetation, in this paper we investigated what land cover classes occur along the riparian buffer stripes considered Area for Permanent Preservation (APP) in the Sorocaba municipality, SP in three periods: 1988, 1995 and 2003. Based on GIS technology and using the drainage network map, the APP stripes (riparian buffer zones) map was generated, and this map was overlaid to the land cover map (1988, 1995 and 2003) to provide a land cover map specifically of the riparian buffer zones. The results show that 58.43% of the APPs have no land cover of native vegetation and therefore, need to be reforested, representing 5,400 hectares to be restored.
oai:ojs.unitau:article/216
2024-03-29T09:35:59Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/216
2024-03-29T09:35:59Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 4 No. 3 (2009); 169-180
Application of UV/H2O2 system to treatment of wastewater arising from thermal treatment of oil-water emulsions
Avaliado por Pares
Subtil, Eduardo Lucas; Universidade de São Paulo
Mierzwa, José Carlos; Universidade de São Paulo
Hespanhol, Ivanildo; Universidade de São Paulo
2009-12-21 09:49:12
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/216
pt
In this work it is presented the results of bench scale tests using Advanced Oxidation Process (AOP) in a UV/H2O2 system, for the treatment of an industrial effluent with a high concentration of dissolved organic matter, resulted from thermal treatment of oil-water emulsions. Treatability tests were carried out in a batch photochemical system with recycle, and the raw effluent was characterized by the analysis of pH, turbidity, color, COD and TOC. Results from these assays shown that UV/H2O2 process is technically feasible resulting in TOC removal above 90%. However, for one log TOC removal from this effluent the energy required was about 455.5 kw.h.m-3, for an alpha relation of 10 mg H2O2/mg COT, resulting in a higher operational cost, considering the evaluated conditions.
oai:ojs.unitau:article/217
2024-03-29T09:35:59Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/217
2024-03-29T09:35:59Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 4 No. 2 (2009); 66-74
Aquatic macroinvertebrates of Batalha river reservoir for water captation and supply of the city of Bauru, SP, Brazil
Avaliado por Pares
Silva, Fabio Laurindo da; Universidade federal de São Carlos
Talamoni, Jandira Liria Biscalquini; Universidade Estadual Paulista
Bochini, Gabriel Lucas; Universidade Estadual Paulista
Ruiz, Sonia Silveira; Universidade Paulista
Moreira, Diana Calcidoni; Universidade Estadual Paulista
2009-08-28 15:09:03
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/217
pt
In this study the composition and diversity of aquatic macroinvertebrates were evaluated in the reservoir of water captation of Batalha river for treatment and supplying of the city of Bauru. The samples were collected in dry (from June to August, 2005) and rainy (from December, 2005 to February, 2006) seasons. We analyzed and identified 840 organisms belonging to 8 taxa in dry season and 4 taxa in rainy season. The system presented low abundance and diversity of macroinvertebrates probably due to the water quality and its physical and chemical variations associated with rain events.
oai:ojs.unitau:article/218
2024-03-29T09:35:59Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/218
2024-03-29T09:35:59Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 4 No. 2 (2009); 156-171
Quality monitoring and assessment of mercury contamination in water and sediments of the Botafogo river, PE, Brazil
Avaliado por Pares
Lima, Andréa da Cruz Gouveia de; CPRH
Sobrinho, Maurício Alves da Motta; Universidade Federal de Pernambuco
da Silva, Valdinete Lins; UFPE
da Silva, Maria do Carmo Lourenço; DEQ - UFPE
Ferreira, Joelma Moraes; DEQ - UFPE
2009-08-29 17:19:07
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/218
pt
Since the mid 80's, the riverside population of Rio Botafogo, in the Santa Cruz channel, Itamaracá has undergone critical environmental situations due to poorly planned growth and inadequate soil occupation, and as a consequence, a loss in environmental quality resulted. In 1963, an industry for production of chlorine and caustic soda produced by electrolytic cell of mercury was installed in the Botafogo river. By mid-1987, a discharge of inorganic mercury between 22 and 35 tones of mercury in this river was estimated. In addition to this industry, others of different types were installed in recent years along the sides of this river. Based on previous studies, we conducted a new assessment of contaminated sites, comparing the changes over the years concerning the quality of water and sediment of the Botafogo river, in which the locations of collection, the need to increase the network of environmental monitoring were investigated. The parameters defined for analysis of water were: pH, dissolved oxygen (OD), biochemical oxygen demand (BOD), ammonia and phosphorus concentration, color, turbidity and mercury content. It was monitored the concentration of mercury in the sediments. The values of pH, turbidity, DO, BOD and ammonia usually showed values within the limits established by CONAMA Resolution No 357. Color parameters have remained consistently high, probably caused by continuous withdrawal of sand before the points of collection. The content of phosphorus was high, until the beginning of 2005, and remained within standards required by legislation until the end of this research. In the studied area, it has been installed, since 1963, an industry for chlorine and caustic soda production, which uses in its manufacturing process electrolytic cell of mercury. In this experiment, the impact of mercury has been observed.
oai:ojs.unitau:article/224
2024-03-29T09:35:59Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/224
2024-03-29T09:35:59Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 4 No. 2 (2009); 124-134
Feasibility of a daly of no more than 10-4 per person per year for water reuse in agriculture, in developing countries
Avaliado por Pares
Hespanhol, Ivanildo; Universidade de São Paulo
2009-08-29 16:59:26
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/224
pt
DALYs are a measure of the health of a population or burden of disease due to a specific disease or risk factor. It evaluates the time lost because of disability or death from diseases compared with a long life free of disability in the absence of disease. DALYs are calculated as the sum of years of life lost by premature mortality (YLL) and years of healthy life lost in states of less than fully health, i.e., years lived with a disability (YDL), which are standardized by means of severity weights, thus: DALY=YLL+YLD. WHO has established for wastewater use in irrigation the same reference level of health protection as established for drinking water quality, i.e., the additional burden of disease from consuming water irrigated food should not exceed 10-6 DALY (Disability-Adjusted Life Years) loss per person per year (pppy). Such a restrictive risk is almost impossible to be attained in most developing countries which may not be able to afford the cost of wastewater treatment and of other protective measures, even for restrict irrigation. This paper analyses which protective measures are able to be implemented in developing countries and proposes a tolerable disease burden of no more than 10-4 DALY per person per year. In order to evaluate this proposal it is mandatory to adopt a methodology of cost/benefit, through the development of epidemiologic studies and the identification of local characteristics and constraints, particularly the ones related to public health, technical, socio economical and environmental conditions.
oai:ojs.unitau:article/225
2024-03-29T09:35:59Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/225
2024-03-29T09:35:59Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 4 No. 2 (2009); 10-20
Application of a 2D shallow water model to analyze the flow and the use of groins to protect an area of the Amazon river estuary
Avaliado por Pares
Blanco, Claudio José Cavalcante; UFPA
Mesquita, André Luiz Amarante; UFPA
Sena, Manoel José dos Santos; IESAM
Secretan, Yves; INRS-ETE
2009-08-28 14:33:52
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/225
en
The waterfront of Belém, the capital of Pará State, Brazil, has undergone a beautification process whereby a hydraulic embankment is being executed at a section located at the confluence of the Guamá River and the Guajará Bay. A two-way avenue and a leisure and tourist complex will be built on this filled area. Protection of the construction site may be required in order to minimize loss of material during the build up operation and it could serve to maintain the tourist complex as well. Other important point is the impact analysis of the construction on the global flow at the confluence of the Guamá River and the Guajará Bay. Thus, a two-dimensional hydrodynamic finite elements model is used to simulate the velocities in the region for three configurations, namely: the first with the natural configuration of the area; the second where the work area is being protected by one groin; and the third one with two groins. The flow simulation for flood tide or ebb tide showed that for flood tide the velocities are higher than those in ebb tide. The simulated velocities with the presence of groins are slower than those simulated with the natural configuration model. Thus, it shows the efficacy of the groins to slow down the currents` velocities. In addition, the groins could protect the section of the revitalized Belém shore. In a general way, the construction does not change the global flow in the region.
oai:ojs.unitau:article/227
2024-03-29T09:35:59Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/227
2024-03-29T09:35:59Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 4 No. 2 (2009); 46-56
Evaluation of surface water quality in waterways located in the municipality of Pelotas, RS, Brazil
Avaliado por Pares
Coradi, Paulo Carteri; Universidade Federal de Viçosa
Fia, Ronaldo; Universidade Federal de Viçosa
Pereira-Ramirez, Orlando; Universidade Federal de Pelotas
2009-08-28 14:57:19
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/227
pt
The present work was performed in the municipality of Pelotas, RS, Brazil with the objective of evaluating water quality from the years of 1996 to 1998, in the principal waterways which pass through the municipality using the Water Quality Index of Bascarán (IQAb). It was verified that the water quality in the evaluated bodies was acceptable with the exception of the Eclusa and Santa Bárbara reservoirs, in which phosphorus is the most important pollutant. During the period of prolonged drought from 1996 to 1997, there was a reduction in the IQAb. The index also reflected the environmental status verified in the region due to intensive agriculture and the release of a large portion of domestic and industrial wastes to the waterways without previous treatment.
oai:ojs.unitau:article/229
2024-03-29T09:35:59Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/229
2024-03-29T09:35:59Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 4 No. 2 (2009); 31-45
Extractor capacity of different plant species cultivated in wetlands used to pig wastewater treatment
Avaliado por Pares
Matos, Antonio Teixeira de; Universidade Federal de Viçosa
Freitas, Wallisson da Silva; Instituto Federal de Educação, Ciência e Tecnologia do Norte de MInas Gerais
Lo Monaco, Paola Alfonsa Vieira; Instituto Federal de Educação, Ciência e Tecnologia do Espírito Santo
2009-08-28 14:40:46
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/229
pt
The objective of this study was to evaluate the extracting capacity of different plant species when cultivated in constructed wetlands systems (CWS) for the treatment of pig wastewaters (PW). For this, four CWS were constructed with 24.0 m x 1.1 m x 0.7 m, sealed with geomembrana of polyvinyl chloride (PVC) and filled with 0.4 m of gravel “zero”. In CWS1, CWS2 and CWS3 were planted cattail (Typha latifolia L.), Alternanthera philoxeroides (Mart.) Griseb. and grass-Tifton 85 (Cynodon dactylon Pers.), respectively. In CWS4 was planted Alternanthera on the 1st third, Typha in 2nd third and tifton-85 in the 3rd third of the bed. After passing through a organic filter filled with crushed sugar cane bagasse, the ARS was applied in SACS in a flow of 0.8 m3 d-1, which provided a detention time of 4.8 days. There was a trend to obtain higher extraction of pollutants by plants grown at the beginning of the CWS. The Alternanthera plant species that was presented greater capacity for nutrient extractor, extracting 9.5 and 23% of all total-N and K applied through ARS. Plants extracted small amounts of copper from the ARS. Because of the improved performance of plants, Alternanthera or Tifton-85 grass must be cultivated in CWS for the ARS treatment.
oai:ojs.unitau:article/230
2024-03-29T09:35:59Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/230
2024-03-29T09:35:59Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 4 No. 3 (2009); 123-143
Treatment aerobic conjugate of sludges of septic tanks and household organic solid wastes
Avaliado por Pares
Pereira da Silva, Monica Maria; Universidade Estadual da Paraíba- UEPB
de Sousa, José Tavares; Universidade Estadual da Paraíba-UEPB
Ovruski Ceballos, Beatriz Susana; Universidade Estadual da Paraíba-UEPB
da Silva Feitosa, Wanderson Barbosa
Leite, Valderi Duarte; Universidade Estadual da Paraíba-UEPB
2009-12-21 09:54:16
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/230
pt
It was aimed at to evaluate the co-composting as technological alternative to the treatment of sludges of septic tanks with household organic solid wastes originating from cities of small and medium loads. The sludges and the domiciliary organic solid waste were collected in Cabaceiras, Caraúbas and Queimadas, state of Paraíba. The experiment consisted of four treatments with three repetitions, totaling 12 reactors, of cylindrical configuration in polyethylene of 100 L of capacity. Each reactor was fed with 50 kg substratum with variable composition in function of the sludge fraction: 0%, 10%, 20% and 30%. The manual turning was accomplished three times a week and the temperature was monitored daily. The total destruction of helminth eggs in period differentiated in function of the sludges fraction (14, 28, 35 and 63 days) and the medium transformation of 54.1% of sludges in biosolids class A and class B, with favorable characteristics to the use in agricultural cultures in 91 days, expressed the viability of the treatment for co-composting of sludges of tanks septic multichamber of collective use for the cities of small and medium load.
oai:ojs.unitau:article/231
2024-03-29T09:35:59Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/231
2024-03-29T09:35:59Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 4 No. 2 (2009); 93-105
Chemical elements potentially toxic at different flow rates in the Turvo Sujo river, MG, Brazil
Avaliado por Pares
Barros, Flavia Mariani; Universidade Estadual do Sudoeste da Bahia
Martinez, Mauro Aparecido; Universidade Federal de Viçosa
de Matos, Antonio Teixeira; Universidade Federal de Viçosa
Cecon, Paulo Roberto; Universidade Federal de Viçosa
Moreira, Débora Astoni; Universidade Federal de Viçosa
Rosa, David Rafael Quintão; Universidade Federal de Viçosa
2009-08-29 16:43:36
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/231
pt
Some chemical elements in small amounts are essential to life; however, in high concentrations can commit the quality of the water courses and cause damages to human health. The objective of this work was to quantify the presence of potentially toxic elements, in a section of the Turvo Sujo river in the Viçosa city during different flow rates. In this river five collection points were chosen and monitored in four different seasons. For each point, the concentrations of copper, manganese, iron, zinc, chromium, cadmium and lead were obtained. The iron and manganese concentrations were larger in summer time, due to the largest
superficial drainage in this period, while the most toxic elements, such as chromium, cadmium and lead were observed in higher concentrations in the spring period corresponding to the lowest rate flow.
oai:ojs.unitau:article/232
2024-03-29T09:35:59Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/232
2024-03-29T09:35:59Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 5 No. 2 (2010); 119-132
Performance of the constructed wetland systems in pollutants removal from hog wastewater
Avaliado por Pares
Matos, Antonio Teixeira de; Universidade Federal de Viçosa
Freitas, Wallison da Silva; Instituto Federal de Educação, Ciência e Tecnologia do Norte de Minas Gerais
Lo Monaco, Paola Alfonsa Vieira; Universidade Federal de Viçosa
2010-08-25 08:02:00
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/232
pt
The main objective of this work was to evaluate the efficiency of a constructed wetland systems (CWS) for pollutants removal, in mono crop and multi crop with three different species of plants, originated from hog wastewater treatment (HW). Therefore, 5 CWS of 24.0 m x 1.1 m x 0.7 m were constructed, sealed with a membrane of polyvinyl chloride (PVC) and filled with 0.4 m of small gravel. In CWS1, CWS2 and CWS3 grown to cattail (Typha latifolia L.), Alternanthera philoxeroides (Mart.) Griseb. and Tifton 85 grass (Cynodon dactylon Pers.), respectively. In the bed of CWS4 was planted at 1st third Alternanthera, cattail, in the 2nd third and tifton-85 grass and in the 3rd third of. The CWS5 was not planted and it was used as control. After passing through a filter filled with crushed bagasse of sugar cane, the HW was applied to the CWS in a flow of 0.8 m3 d-1, which corresponded to a hydraulic detention time of 4.8 days. According to the results it was shown that the five CWS(s) had statistically nearly the same removal of pollutants, and the average removal efficiency of TSS, COD, BOD and Zn, were 91, 89, 86 and 94%, respectively. Also high removals were obtained concerning the ST, N-total, NH4+ and P-total, with average values of 62, 59, 52 and 50%, respectively. The plants in all planted CWS worked in a similar way maintaining the system efficiency and the non cultivated CWS presented analogous capacity of pollutants removal when compared to the cultivated CWS(s).
oai:ojs.unitau:article/235
2024-03-29T09:35:59Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/235
2024-03-29T09:35:59Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 4 No. 2 (2009); 57-65
Decrease in carbon stocks in an oxisol due to land use and cover change in southwestern Amazon
Avaliado por Pares
Salimon, Cleber Ibraim; Universidade Federal do Acre
Wadt, Paulo Guilherme Salvador; EMBRAPA
de Souza Alves, Suhelen; Universidade Federal do Acre
2009-08-28 15:03:57
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/235
en
This study presents data on the influence of the land cover type on soil carbon stocks in an Oxisol in southwestern Amazon, Acre, Brazil, under three land cover types: mature forest, pasture and rubber tree plantation. Total soil carbon was calculated using carbon concentration in soil and soil bulk density. Accumulated soil carbon stock up to 1 m depth was greater in mature forest (96 Mg ha-1), followed by pasture (79.7 Mg ha-1) and then by rubber tree plantation (56.3 Mg ha-1); also the greatest carbon accumulation in the surface layers was in pasture. Such results demonstrate that we need not only carbon stocks information by soil type, but also precise information on the land cover classification within a region in order to generate better soil carbon stocks estimations. Also, it is important to notice that mature forest conversion to other land covers can be the source to the atmosphere of about 20 to 40% of the carbon stocked in the soil previously.
oai:ojs.unitau:article/239
2024-03-29T09:35:59Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/239
2024-03-29T09:35:59Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 4 No. 2 (2009); 172-187
Land use influence in the Cerrado biome water quality: a comparative study between watersheds in the Goiás State, Brazil
Avaliado por Pares
Rabelo, Clarisse Guimarães; Universidade Federal de Goiás
Ferreira, Manuel Eduardo; Universidade Federal de Goiás
de Araújo, José Vicente Granato; Universidade Federal de Goiás
Stone, Luis Fernando; Embrapa Arroz e Feijão
da Silva, Silvando Carlos; Embrapa Arroz e Feijão
Gomes, Marisa Prado; Embrapa Arroz e Feijão
2009-08-29 17:26:06
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/239
pt
Based on the assumption that the water quality in a watershed is directly related to the degree of equilibrium between the natural and anthropic factors, in this paper we examined the effects of the land cover changes in areas of savanna (Cerrado biome) over the watersheds ecological viability (expressed here as Water Quality Index). Thus, we analyzed two middle-sized basins located in the Goiás State (a representative area of this biome), with different characteristics regarding both the physical aspects (soil, topography and remnant vegetation) and human aspects (environmental degradation level and economic development index): (1) João Leite basin, located in the Center-South State (anthropic level = 88%), and (2) São Domingos basin, in the Northern State (anthropic level = 25%). Chemical analyses have indicated that the water in the São Domingos basin presents, in general, a better quality for human consumption and for the ecosystem maintaining, reflecting the high conservation state of this basin as well.
oai:ojs.unitau:article/246
2024-03-29T09:35:59Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/246
2024-03-29T09:35:59Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 5 No. 1 (2010); 57-67
Soil chemicals characterization of riparian area in Mariana sub-basin for environmental conservation
Avaliado por Pares
Camargo, Mairo Fabio; UNIVERSIDADE DO ESTADO DE MATO GROSSO
Roque, Cassiano Garcia; UFMS
Umetsu, Ricardo Keichi; UFSCar
Pierangeli, Maria Aparecida Pereira; UNEMAT
Silva, Thiago Rodrigo Cardoso da; UNEMAT
2010-04-29 14:07:13
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/246
pt
This work aimed to characterize the soil chemical and particle-size of the riparian area of Mariana sub-basin in Mato Grosso state, comprised by the geographic coordinates 56º8’0’’W, 56º75’0’’W and 56º9’30’’S, 59º9’30’’S. The chemical and physical attributes evaluated were: pH (CaCl2), MO, K, P, Ca+2, Mg+2, H+, Al+3, V%, m%, SB, CEC pH 7.0, and particle-size and effective CEC. Nine plots of 20 × 50 m were installed in a way to represent the sub-basin full extent. The experimental design was completely randomized with 5 replicates for each depth. The analysis for soil fertility was performed using EMBRAPA methodology for routine analysis. Five samples were collected consisting of five sub-samples from each plot at depths of 0-0.1 and 0.1-0.2 m. The values obtained were subjected to variance analysis, the means tested by Tukey's test and correlations performed by the test T. The results show that the predominant soil texture is sand loam. The soil chemical properties were ranked low to medium fertility.
oai:ojs.unitau:article/249
2024-03-29T09:35:59Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/249
2024-03-29T09:35:59Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 4 No. 3 (2009); 144-156
Experimental study of hydrodynamic and operation start of a baffled anaerobic reactor treating sewage
Avaliado por Pares
Calheiros, Herlane Costa; Universidade Federal de Itajubá
Perico, Ana Carolina Silveira; UNIFEI
Nunes, Camila Fernandes; UNIFEI
2009-12-21 09:57:51
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/249
pt
It is important to provide individual sanitation systems for sewage peri-urban communities or rural areas to minimize impacts on the environment and human health caused by sewage discharge in natura into water resources. In this context, the anaerobic digestion of effluent has been one of the main considered technologies due to easy implementation, material minimization and reduction in waste production. The objective of this work was to study a Baffled Anaerobic Reactor (BAR) including its hydrodynamic characteristics, percentile of inoculum to be applied and reactor operation start. It was concluded that the flow is dispersed with 3.84% of dead spaces and that 20% of the cow manure provided best results; however, due to the high fiber content of the manure, its use is not recommended as inoculum. The BAR system, composed of four chambers, presented good performance for sewage treatment of a rural community in terms of organic substance removal (COD), turbidity and solids meeting effluent disposal standards of these parameters considering the Federal and Minas Gerais State legislation, in Brazil, even in a transient phase of operation, at temperatures below 20°C. However, the effluents from the BAR can’t be released into water bodies without other parameters such as nitrogen, phosphorus, fecal coliforms, and others are investigated to be conforming to those standards.
oai:ojs.unitau:article/255
2024-03-29T09:35:59Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/255
2024-03-29T09:35:59Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 5 No. 1 (2010); 68-78
Agronomic performance of black oat (Avena strigosa Schreb.), cultivated in constructed wetlands
Avaliado por Pares
Eustáquio Júnior, Valdeir; Universidade Federal de Viçosa
Teixeira de Matos, Antonio; Universidade Federal de Viçosa
Carvalho de Campos, Lidiane
Carraro Borges, Alisson; Universidade Federal de Viçosa
2010-04-29 14:18:08
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/255
pt
This work aimed to evaluate the agronomic performance of black oat (Avena strigosa Schreb.), when cultived in constructed wetlands (CWs) in the treatment of domestic wastewater. The experiment was conducted in four CWs for secondary/tertiary treatment of domestic wastewater. The black oats were sown in the CWs at a density of 80 kg ha-1 of seeds. The organic loading rates (OLRs) applied in the CWs were 100, 200, 400 and 600 kg ha-1 d-1 of biochemical oxygen demand (BOD). The OLRs were obtained from results of analysis of BOD influent the CWs. The variables evaluated in influent and effluent of CWs were biochemical oxygen demand, chemical oxygen demand, total nitrogen, total phosphorus, potassium, sodium and electrical conductivity. In plant tissue the productivity of dry matter and the content of crude protein were evaluated. The productivity of dry matter for black oats were independent of OLRs applied. The highest yield of dry matter was obtained by applying 400 kg.ha-1 d-1 BOD. There was an average productivity of crude protein of 15.38 dag kg-1 in the black oat. The domestic wastewater can be a suitable nutritional solution for production of black oats in the CWs.
oai:ojs.unitau:article/257
2024-03-29T09:35:59Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/257
2024-03-29T09:35:59Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 4 No. 3 (2009); 54-66
Temporal characterization of Arsenic in das Velhas River hydrographic basin waters, MG, Brazil for one decade (1998 - 2007)
Avaliado por Pares
Christofaro, Cristiano; Universidade Federal de Minas Gerais
Leão, Mônica Maria Diniz; Universidade Federal de Minas Gerais
2009-12-21 10:00:19
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/257
pt
Arsenic, a metalloid with wide distribution in nature, can be found in natural environments in the forms of high toxicity. Monitoring conducted in the Basin of the das Velhas River, MG, demonstrates the occurrence of this metal in all sampling stations distributed over the water course and main tributaries. Thus, this study aims to evaluate the time trends of concentration of arsenic in water courses of the basin of das Velhas River, considering the data of twenty-nine monitoring stations from 1998 to 2007. The tests included the verification of seasonality, autocorrelation and temporal trend with the non-parametric tests of Mann-Kendall and Mann-Kendall seasonal. Eight sampling stations showed seasonality, with higher concentrations observed in rainy season. The autocorrelation was virtually nonexistent, which may be associated with low sample found in a monitoring program (three to six months). Only seven monitoring stations showed significant negative trend, indicating a reduction in the concentration of arsenic over the period studied. The results showed that the time trend studies have great relevance for the management of pollution of water resources from tracking data, providing subsidies for preventive and corrective measures differentiated between the stations and sampling periods of the year and also be used in evaluation of the effectiveness of these measures.
oai:ojs.unitau:article/260
2024-03-29T09:35:59Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/260
2024-03-29T09:35:59Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 4 No. 3 (2009); 181-195
Dwarf cashew growth irrigated with saline waters
Avaliado por Pares
Oliveira, Arlington Ricardo; Universidade Federal de Campina Grande - PB
Carneiro, Paulo Torres; PDCR FAPEAL/UFAL - Arapiraca. AL
Carvallo Guerra, Hugo Orlando; Universidade Federal de Campina Grande
Fernandes, Pedro Dantas; Universidade Federal de Campina Grande
2009-12-21 10:52:13
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/260
pt
The cashew production is one of the most important agricultural activities from the social-economical viewpoint for the North East of Brazil; besides to produce a great deal of hand labor, it is very important as an exporting commodity. The inadequate use of irrigation in the semi arid regions of the North East of Brazil has induced soil salinization and consequently problems for the irrigated agriculture. In spite of this, few works have been conducted to study the effect of saline stress on the growth and development of the cashew. Because of the lack of information for this crop, an experiment was conducted to study the effect of salinity stress on the phytomass production and nutrient accumulation on the different organs of the precocious dwarf cashew (Anacardium occidentale L.) clone CCP76. The study was conducted under controlled conditions using as statistical scheme a randomized block design factorial with six replicates. Five salinity treatments were considered for the irrigation water (electrical conductivities of 0.8, 1.6, 2.4, 3.2 and 4.0 dS m-1 at 25oC). The increasing in salinity of the irrigation water reduced the phytomass at different organs of the studied plant. The nitrogen, phosphorus, potassium, chloride and sodium in the plant varied with the salinity of the irrigation water according with the part of the plant analyzed; in some parts increased, in others decreased, in others increased initially and decreased afterwards, and finally, in other part of the plant the salinity of the irrigation water did not affect the nutrient concentration.
oai:ojs.unitau:article/271
2024-03-29T09:35:59Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/271
2024-03-29T09:35:59Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 4 No. 3 (2009); 211-229
The application of management instruments and the Water Resource Management System in Rodrigo de Freitas Lagoon, RJ, Brazil
Avaliado por Pares
Pereira, Renata Maria Vasconcelos; Universidade Federal Fluminense
Medeiros, Rodrigo; Universidade Federal Rural do Rio de Janeiro
2009-12-21 10:46:42
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/271
pt
Brazilian public policies for water resources are defined in a national level by Law 9.433/97 and in the Rio de Janeiro State by Law 3.239/99. Decentralization, integration and public participation are pointed out by both policies as core strategies for water management. They define the Water Resource Management System and determine competences for all its members that are responsible for planning, developing and applying the instruments for water management. This study aims to analyze the application of water resources policies in Rodrigo de Freitas Lagoon basin, Rio de Janeiro, RJ. The results showed that no planning activities for this basin were carried out while several actions were implemented by the city and state government agencies as well as private institutions. Water permits and charging for water use were the two only management instruments well implemented in the basin indicating that instruments financially attractive are prioritized. All others instruments were not implemented yet or need to be updated. This work concludes that the implementation of water resource policies in Rodrigo de Freitas lagoon basin is incipient and the strengthening of the Water Resource Management System, including planning and public participation, must be reinforced.
oai:ojs.unitau:article/272
2024-03-29T09:35:59Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/272
2024-03-29T09:35:59Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 5 No. 1 (2010); 79-88
Evaluation of physical-chemical performance of an UASB reactor in removing pollutants of pig wastewater
Avaliado por Pares
Pereira, Erlon Lopes; Universidade Federal de Lavras
Campos, Cláudio Milton Montenegro; Universidade Federal de Lavras
Moterani, Fabricio; UFLA
2010-04-29 14:24:44
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/272
pt
Attention has been given by governmental agencies concerning the swine production in confined areas, due to the pollution potential and problems related to epidemiology. Thus, anaerobic treatment system, similar to the one applied in this research, has became very important and raised interest for large scale production and field application. The purpose of this research was to evaluate the UASB reactor behavior considering a hydraulic retention time (HRT) of 9.7 hours, the hydraulic loading rate (HLR) of 2.5 m3 m-3 d-1, Organic loading rate (OLR) of 1.77 kg m3 m-3 d-1 and the average biogas production of 437.08 L d-1. It was found in this work, that the alkalinity in the affluent and effluent were 1,383 mg L-1 and 1,442 mg L-1, respectively. The Ripley alkalinity in the affluent and effluent presented a relation of IA/PA of 1,5 e 1,7, respectively. The CODtotal concentration in the affluent and effluent was 2,705 mg L-1 and 1,849 mg L-1, respectively. The BOD5 concentration in the affluent and effluent was 707 mg L-1 and 317 mg L-1, respectively. The total phosphorus concentration was 1.07 mg L-1 and 1.11 mg L-1 and the concentration of total Kjeldahl nitrogen was 69 mg L-1 and 63 mg L-1, respectively. The CODtotal/BOD5 relation was 0.41 and the efficiency of total, fix and volatile solids removal was 40%, 28%, 48%, respectively. The treatment system presented a good performance and therefore the operational parameters applied could be also useful for large scale systems.
oai:ojs.unitau:article/273
2024-03-29T09:35:59Z
ambi-agua:PAP
v2
https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/273
2024-03-29T09:35:59Z
Ambiente e Agua - An Interdisciplinary Journal of Applied Science
Vol. 5 No. 1 (2010); 189-203
Impacts on Tocantins River aquatic ecosystems resulting from the development of the hydropower potential
Avaliado por Pares
Silva, Jonatas José; Universidade do Estado do Rio de Janeiro
Marques, Marcia; Universidade do Estado do Rio de Janeiro
Damasio, Jorge Machado; CEPEL
2010-04-29 15:19:04
Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"
url:https://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/273
pt
Regardless the obvious success of using hydropower plants to supply energy for economic development, they may result in several environmental and social impacts with different levels of severity on the aquatic ecosystems and on the human communities living in the region. The objective of this study was to identify environmental problems and impacts to the aquatic ecosystems in Tocantins river related to the development of its hydropower potential and contribute to the target of balancing of energy generation with biodiversity and genetic flux preservation. The scenario considered the hydropower plants Peixe Angical and São Salvador. The Causal Chain Analysis (CCA) was used to identify the environmental impacts and their immediate, sectarian and root causes. The impacts were ranked according to the characterization matrix, having the fish communities as the main indicators. The most relevant impacts were: (i) degradation of water resources, (ii) loss and changes in habitats, (iii) changes in the ecosystems stability, (iv) reduction of fish stocks, (v) interference with benthic communities and microorganism’s populations, (vi) changes in the food-chain and (vii) interference with the dispersion of fishes and mammals.
07c132829239a9ce8578f8ef35395a1f