1. Ministry of Education Laboratory of Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, China
2. School of the Environment, Yale University, New Haven, Connecticut 06511, United States
3. Department of Civil and Environmental Engineering, Stanford University, Stanford, California 94305, United States
4. Modern Chinese Literature, Department of Chinese Language and Literature, Peking University, Beijing 100871, China
5. Institute for Data, Systems, and Society, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
6. Institute of Ecology, Key Laboratory for Earth Surface Processes and College of Urban and Environmental Sciences, Peking University, Beijing 100871, China
7. Key Laboratory of Geographic Information Science, Ministry of Education, East China Normal University, Shanghai 200241, China