Along with the economical,society’s development and the population increase the impact of human being’s activity over ecological environment is deepened gradually, the desertification becomes one of the significant environment problems that is facing before human being. This study focused on desertification in the middle of lower-reaches of Tarim River (Daxihaizi Reservoir to Argan). The methods to detect desertification were developed. The spatial and temporal changes of desertification and some natural dr...