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Dynamic Changes and Driving Force of Grassland Sandy Desertification in Xilin Gol: A Case Study of Zhenglan Banner
详细信息   
摘要

Based on the dynamic degree analysis and grid calculation analysis of the TM/ETM data in four periods, the status and spatial dynamic variation of grassland sandy desertification in Zhenglan Banner were monitored and studied. The results show that: 1) the change direction of grassland desertification was due to the interconversion of non-sandy and three-level desertification grassland; 2) the change of medium grassland desertification affects the structure and change direction of the grassland desertification prominently; 3) the developing-sandy grassland area is mainly distributed in the southeast of Sain Hudag and the eastern part of Sanggin Dalai; and 4) human factors were the dominant factors during the reversion and deterioration process of grassland desertification.

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