1. College of Geography and Remote Sensing Sciences, Xinjiang University, Urumqi 830046, China
2. College of Hydrology and Water Resources, Hohai University, Nanjing 210024, China
3. College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua 321004, China
4. Key Laboratory of Oasis Ecology, Xinjiang University, Urumqi 830046, China
5. Department of Social Sciences, Education University of Hong Kong, Lo Ping Road, Tai Po, Hong Kong SAR, China
6. GeoInformatic Unit, Geography Section, School of Humanities, Universiti Sains Malaysia, Penang 11800, Malaysia
7. Departments of Earth Sciences, The University of Memphis, Memphis, TN 38152, USA
8. Xinjiang Institute of Technology, Aksu 843000, China
9. College of Geography Science and State Key Laboratory Cultivation Base of Geographical Environment Evolution (Jiangsu Province), Nanjing Normal University, Nanjing 210023, China