Soil erosion is a long time malignant geomorphologic processes,has become the most important and largest continuous influence of the eco-environmental problems in China.This article took the main of Chongqing city as an example,which was located at the end of the Three Gorges Reservoir.The synthesis utilizes RS and the GIS technology,interpreting the 1988,1999,2009 three periods of TM,CBERS remote sensing,and with the digital geological map of the spatial overlay.The results showed in the following aspects:...