1. Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China
2. College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
3. Department of Urban Studies and Planning, University of Sheffield, Sheffield S10 2TN, UK
4. Key Laboratory of Watershed Geographic Sciences, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China
5. CAUPD Beijing Planning & Design Consultants Ltd., Beijing 100044, China