Interpretation and Dynamic Analysis in Desertification – A Case Study of Kubuqi Desert

Abstract

Nowadays, desertification is a common major environmental problem confronted by human society. Analysis in dynamic change of desertification is one of the tasks to control it, and the interpretation of desertification data is the base to analyze the dynamic change. Based on the analysis of collected data of geology, geomorphology, soil, climate, hydrology, and vegetation, the author indicates that different periods of desertification degree distribution maps can be obtained by selecting multi temporal TM images of the study area in recent years, which are interpreted by the tool of RS & GIS. Then, Kubuqi desert is researched as a sample and desertification dynamic change is discussed in terms of desertification area changes, spatial changes of desertification levels. The main ideas can be deduced as follows: 1. The results indicate that frequent human activities will speed up the degradation and deterioration of ecosystem in Kubuqi desert where environmental capacity is small. 2. In addition to general engineering and biological measures, tourism development should be taken into consideration to eliminate the root causes of irrational human activities and keep dynamic balance of ecological systems and human environment.