Abstract:Soil erosion is now universally reckoned as an ecological environment problem,which results in land degradation and a band of ecological problems such as water pollution and flood disaster,Especially in the vast northwest region of China,a key to restore ecological environment is to control soil erosion.Besides vegetation disruption,rainfall concentration,and steep farmland ect,the susceptibilities of loess to erosion substantially conduce to severe soil erosion on the loess plateau.Soil erodibility being a...