Discussion on Comprehensive Management Modes of the Grassland Desertification in Ruoergai County in Northwest Sichuan

Through 5 years of observation and investigation,according to the causes of desertification,and in combination with the local reality,researches were conducted on different methods of controlling the shifting, semi fixed sand dune, fixed sand dune and sandy land. In addition, the different comprehensive management modes of sandy desertification types were summarized. These models have been applied in production, initially showing huge economic, ecological and social benifts.