Abstract:China is country with vast population and scarce cultivated land per capita.About 33% of the arable land was eroded by wind、water、frost、gravitation and engineering forces.In order to investigate the soil erosion condition and protection measures of the cultivated lsand the soil erosion survey was done by intepretating TM imagery of 1995 and 1996 in China.Landsat TM imagery was composed,projected,rectified and interpreted to get the 1∶100000 vector data of the national land use and the soil erosion map with...