1. Key Laboratory of National Forestry and Grassland Administration on Grassland Resources and Ecology in the Yellow River Delta, College of Grassland Science Qingdao Agricultural University Qingdao PR China
2. Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation Northwest A & F University Yangling PR China
3. State Key Laboratory of Earth Surface Processes and Resource Ecology, Faculty of Geographical Science Beijing Normal University Beijing PR China
4. School of Environment and Spatial Informatics China University of Mining and Technology Xuzhou PR China
5. School of Mapping and Geographic Information Jiangxi College of Applied Technology Ganzhou PR China
6. School of Life Sciences Sun Yat‐sen University Guangzhou PR China