我国土壤侵蚀及控制方面的研究 ,在理论上、实施上 ,已形成侵蚀研究学科的完整体系。近 10a ,国外在土壤侵蚀机理、土壤流失方程、土壤侵蚀与土地生产力关系的评价方法、小流域水土保持规划等 4方面也取得新进展。在土壤侵蚀机理方面充实了土壤密度、持水性、颗粒尺度、水力传导性、植物根系等方面的研究 ;土壤流失方程RUSLE对传统的USLE在理论上加强了计算因子的通用性 ,其应用范围由原二维扩展到三维 ;土壤侵蚀与土地生产力关系的 4种评价方法 ,各有其优缺点 ,“三步法”可客观地评价土壤侵蚀与土地生产力的关系 ;小流域水土保持规划手段最新使用USLE、GIS与计算机技术。 Research on soil erosion and control in our country has formed a complete system of erosion research subject in theory and practice. Nearly 10 years, new progress has also been made in four aspects: the soil erosion mechanism, the soil erosion equation, the assessment method of the relationship between soil erosion and land productivity, and the planning of soil and water conservation in small watershed. In the aspect of soil erosion mechanism, soil density, water holding capacity, grain size, hydraulic conductivity, plant root system and so on are enriched. The soil loss equation RUSLE strengthens the commonality of calculation factors in theory by the USLE, The four methods of evaluating the relationship between soil erosion and land productivity have their own advantages and disadvantages. The “three-step method” can objectively evaluate the relationship between soil erosion and land productivity. The latest use of water and soil conservation planning tools in small watershed USLE, GIS and Computer Technology.