1. School of Geography and Ocean Science Nanjing University Nanjing 210023 Jiangsu Province PR China
2. International Institute for Earth System Science Nanjing University Nanjing 210023 Jiangsu Province PR China
3. Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Nanjing Normal University Nanjing 210046 Jiangsu Province PR China
4. Department of Geography, College of Social Sciences Seoul National University Seoul 151‐742 South Korea
5. School of Resources and Environment North China University of Water Resources and Electric Power Zhengzhou 450046 Henan Province PR China
6. State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science Chinese Academy of Sciences Nanjing 210008 Jiangsu Province PR China
7. School of Architecture and Urban Planning Nanjing University Nanjing 210023 Jiangsu Province PR China
8. School of Geography Science Nanjing Normal University Nanjing 210046 Jiangsu Province PR China
9. National Geographical Conditions Monitoring Center Guangxi Bureau of Surveying, Mapping and Geoinformation Nanning 530023 Guangxi PR China
10. Department of Geography University of South Carolina Columbia 29208 United States
11. School of Public Administration Nanjing University of Finance and Economics Nanjing 210023 Jiangsu Province PR China
12. School of Geography and Tourism Qufu Normal University Rizhao 276826 Shandong Province PR China