Abstract:This study analyzes the effect of landscape patch structure influence upon desertification process by using RS and GIS techniques in Kerqin Sandy Land. Basic image adopt landsat TM image obtained on Sep. 6, 2000. RS and GIS software, such as erdas 8.4, Arcview 3.2, and Arcinfo 7.1, was used as an interpretation tools. Landscape is divided to eight types by means of land use and cover classification method. Analysis data come from samples that are same size and locate at different place on interpreted map. T...