1. Key Laboratory of Natural Resource Coupling Process and Effects, Ministry of Natural Resources, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
2. School of Earth Sciences and Resources, China University of Geosciences, Beijing 100083, China
3. Satellite Environment Center, Ministry of Environmental Protection, Beijing 100094, China
4. College of Urban and Environmental Sciences, Peking University, Beijing 100871, China