The Land Desertification Change of Wuliangsu Lake

This paper analyzes the long-terms (from 1987 to 2010) land desertification in Wuliangsu Lake by interpreting TM images in 1987, 2000 and 2010, and then the land desertification information divided into five different levels by Albedo-NDVI feature space, these five levels represent the different desertification land covering types. Also we explored the change trend among different types of land desertification though the adoption of Markov model, the results suggests that there is a significant increasing of extremely serious desertification land from 1987 to 2000, which indicates the deterioration of environmental conditions during this period. While, there is a significant decreasing of extremely serious desertification land, moderate desertification land and weak desertification land, which indicates the amelioration of environmental conditions during this period from 2000 to 2010.