Surface runoff generation in a small watershed covered by sugarcane and riparian forest

Rafael Pires Fernandes, Robson Willians da Costa Silva, Luiz Felippe Salemi, Tatiana Morgan Berteli de Andrade, Jorge Marcos de Moraes

Abstract


Since an understanding of how runoff is generated is of great importance to soil conservation, to water availability and to the management of a watershed, the objective of this study was to understand the generation of surface runoff in a watershed covered by sugarcane and riparian forest. Nine surface runoff plots were set up, evenly distributed on the lower, middle and upper slopes. The lower portion was covered by riparian forest. We showed that the average surface runoff coefficient along the slope in the present study was higher than in other studies under different land uses. Furthermore, the surface runoff was higher under sugarcane compared to the riparian forest, especially after sugarcane harvesting. Besides land cover, other factors such as the characteristics of rainfall events, relief and physical soil characteristics such as soil bulk density and saturated hydraulic conductivity influenced the surface runoff generation.

Keywords


surface runoff, biofuel, riparian zone, catchment



Revista Ambiente & Água. ISSN:1980-993X  DOI:10.4136/1980-993X

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