This study analyzes the spatiotemporal dynamic evolution and driving factors of desertification in the Mu Us Sandy Land over 30 years (1990-2017) using Landsat TM/OLI imagery and meteorological data. The research divides the period into three stages: development (1990-2000), rapid reversal (2000-2010), and stable reversal (2010-2017). A total of 1680 km² of desertification was reversed. Spatial analysis reveals a west-to-east gradient in desertification severity. Decreasing wind speed, along with environmental policies and human interventions, are identified as key factors driving desertification reversal. The study concludes that climate change and human activities jointly affect desertification dynamics.

Xueying Han, Guangpu Jia, Guang Yang, Ning Wang, Feng Liu, Haoyu Chen, Xinyu Guo, Wenbin Yang, Jing Liu