1. Breeding Base for State Key Laboratory of Land Degradation and Ecological Restoration of Northwest China, Ningxia University, Yingchuan, China
2. Key Laboratory for Restoration and Reconstruction of Degraded Ecosystem in Northwestern China of Ministry of Education, Ningxia University, Yinchuan, China
3. SSAI/NASA GSFC, Greenbelt, MD, USA
4. Department of Geography, University of Maryland, College Park, MD, USA
5. The State Key Laboratory of Remote Sensing Science, Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, Beijing, China
6. College of Town-Country Planning and Land Resources, Hebei GEO University, Shijiazhuang, China