1. College of Geographic Science, Inner Mongolia Normal University, Hohhot 010022, China
2. Inner Mongolia Key Laboratory of Remote Sensing and Geographic Information Systems, Inner Mongolia Normal University, Hohhot 010022, China
3. Chinese Academy of Agricultural Sciences Grassland Research Institute, Hohhot 010022, China
4. Arxan Forest and Grassland Disaster Prevention and Mitigation Research Station of Inner Mongolia Autonomous Region, Alxan 137400, China
5. Inner Mongolia Autonomous Region Surveying, Mapping and Geographic Information Center, Hohhot 010022, China