A Literature Review on the Application of Water Erosion Prediction Project in the Evaluation of Soil and Water Conservation

Quick and correct prediction of soil erosion plays an important role for the decision-making department in planning water and soil conservation measures timely,improving water and soil conservation facilities,and setting key conservation areas.Traditional empirical models show flaws in this aspect.A newly process-based soil erosion model-Water Erosion Prediction Project(WEPP) shows its advantages because it can predict the space-time distribution of the soil erosion and the place where soil erosion occurs in the whole hill slope.This paper introduced WEPP briefly,reviewed previous works in evaluation and application of WEPP in different areas,pointed out the deficiency of WEPP in water and soil conservation.Some hot problems and new directions of WEPP were discussed.