1. College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 101408, China
2. Yanshan Earth Critical Zone and Surface Fluxes Research Station, University of Chinese Academy of Sciences, Beijing 101408, China
3. China Institute of Water Resources and Hydropower Research, Beijing 100038, China
4. Key Laboratory of Agricultural Remote Sensing, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
5. Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, China
6. Northwest Institute of Eco-Environment and Resources, Lanzhou 730000, China