文章以辽宁省阜蒙县二道岭小流域、辽宁省朝阳市东大道小流域作为动态监测典型小流域,通过遥感技术监测各流域土地利用类型和水土流失的面积和比例,分别分析两地区土地利用、植被盖度、水土保持措施、水土流失的时空分布现状和演变特征。进而分析出不同强度土壤侵蚀面积变化的原因,为下一步水土保持工作提供理论依据。 This paper takes Erddingling watershed in Fumeng County, Liaoning Province and Dongdao Valley in Chaoyang City, Liaoning Province as the typical small watershed. By using remote sensing technology to monitor the area and proportion of land use types and soil erosion in each basin, Utilization, vegetation coverage, soil and water conservation measures, spatial and temporal distribution of soil erosion and evolution characteristics. And then analyze the reason of the change of soil erosion area with different intensities, which provides the theoretical basis for the next step of soil and water conservation.