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

  • Thomaz Correa e Castro Costa Embrapa
  • Elaine Cristina Cardoso Fidalgo Embrapa Solos
  • Uebi Jorge Naime Embrapa Solos
  • Saulo Pedrinha Guimarães EPE
  • Maria José Zaroni Embrapa Solos
  • Mariella Camardelli Uzeda Embrapa Agrobiologia
Keywords: soil loss, environment vulnerability, watershed

Abstract

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.

Author Biographies

Thomaz Correa e Castro Costa, Embrapa
Pesquisdor da Embrapa em Monitoramento Ambiental
Elaine Cristina Cardoso Fidalgo, Embrapa Solos
Pesquisadora da Embrapa em Planejamento Ambiental
Uebi Jorge Naime, Embrapa Solos
Pesquisador da Embrapa em Pedologia
Saulo Pedrinha Guimarães, EPE
Geólogo. Petróleo Brasileiro S.A. – Petrobras
Maria José Zaroni, Embrapa Solos
Pesquisadora em Planejamento do Uso da Terra
Mariella Camardelli Uzeda, Embrapa Agrobiologia
Pesquisadora em Manejo de Recursos Naturais Renováveis, Paisagens Agrícolas e Agroecologia
Published
23/04/2009
Section
Papers