Through 3 years' runoff plot monitoring and measurements, laboratory and field surveys and analysis, it comes to an conclusion that the engineering practices and biological measures adopted in the severely-eroded hilly and gully regions to weaken the process of geologicalization, to accelerate the process of soil formation and to make weathered debrics further weather, whose physical and chemical properties can gradually take the turns for the better.And hence soil and water erosion has been basically controlled,And at the same time, the scientific bases have been provided for the further exploration and utilization of land resources in this region.