基于RS和GIS的小流域土壤侵蚀量估算研究

Study on estimation of the amount of soil erosionin small watershed based on GIS and RS

介绍了修正通用土壤流失方程及各因子算法.选取三峡库区太平溪小流域为研究区域,通过遥感和野外调查进行信息采集,建立了流域环境数据库.在GIS支持下,根据土壤流失监测模型对数据库实施运算操作,估算了流域土壤侵蚀量.

<Abstrcat> This paper introduces the model of Revised Universal Soil Loss equation (RUSLE) and the algorithm of its each factor. And it builds the environmental database through a lot of data obtained from Remote Sensing(RS) and field surveys in the Taipingxi small watershed of the Three-Gorge area. Finally, the amount of soil erosion of the small watershed is estimated running the model of RUSLE by the support of Geographical Information System(GIS).