A B S T R A C TThe mapping and assessment of risk of erosion is important for planning of natural resource management tool. A considerable number of researchers have shown interest in studies of environmental impacts caused by human activities that promote the accumulation of sediments in the river bed. The objective of this study was to estimate the sediment yield from the Soil and Water Assessment Tool (SWAT) model in the São Francisco river basin under the present condition of land use and occupation. The simulation period comprised the years 1993 to 2010. Input data from the meteorological stations of the National Institute of Meteorology (INMET) were used. SWAT estimated soil erosion from the Universal Equation of Modified Soil Loss. The results of the simulations allowed the identification of areas with greater potential for water erosion. Landscape management in watersheds through the SWAT model can assist to identify areas susceptible to erosion processes.
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