1. State Key Laboratory of Eco-hydraulics in Northwest Arid Region of China, Xi'an University of Technology, Xi'an, Shaanxi, China
2. Mianyang Normal University, Mianyang, Sichuan, China
3. Department of Geography, Environment, and Spatial Sciences, Michigan State University, East Lansing, Michigan, USA
4. Center for Global Change and Earth Observations, Michigan State University, East Lansing, Michigan, USA
5. State Key Laboratory of Earth Surface and Ecological Resources, Faculty of Geographical Science, Beijing Normal University, Beijing, China
6. Hebei University of Engineering, Handan, Hebei, China