Abstract:

Soil erosion becomes more serious and has threatened to social stability and security now.So we must make great efforts and pay more attention to water and soil conservation. We should put the research for soil erosion at the most important position. This paper discusses the establishment of the soil erosion caused by sloping surfaces assessment index system,and select quantification theory to realize the qualitative assessment for the soil erosion of the farming slope experimental plots in Yunxi.According the system index established,we build the qualitative assessment based on quantification theoryⅡthrough historical data.The accuracy of this model is 8739%.All of these results demonstrate the correctness of this qualitative assessment model,and the achievement of this paper can provide a helpful reference for water and soil conservation in Yunxi