Research Status and Existing Problems on Dynamic Mechanism of Soil and Water Conservation and Soil Erosion

In this paper,problems currently existing in soil and water conservation researches in China were briefly reviewed,and meanwhile,soil and water conservation technical measures with 'runoff regulation' as a main method and erosion sediment yield mechanism based on hydrodynamic characteristics and also research direction and significance were proposed. A systematic summary of soil and water conservation measures with 'runoff regulation' as a main method,indexes for runoff and sediment reduction effects and mechanism of soil erosion process as well as a discussion of main problems existing in dynamic process of runoff regulation and overland flow erosion and research of urgent need were made.