1. School of Geography and Ocean Science, Nanjing University, Nanjing, China
2. State Key Laboratory of Resources and Environmental Information System, Institute of Geographical Sciences and Natural Resources Research, CAS, Beijing, China
3. College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, China
4. Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing, China
5. Urban Planning Academic Infromation Center, China Academy of Urban Planning & Design, Beijing, China