1. College of Geosciences, Nantong University, Nantong 226007, China
2. School of Geography, Nanjing Normal University, Nanjing 210023, China
3. Key Laboratory of Virtual Geographic Environment (Nanjing Normal University), Ministry of Education, Nanjing 210023, China
4. Research Centre for Environmental Change and Sustainable Development, Ningbo Polytechnic, Ningbo 315800, China
5. Institute of Global Environmental Change, Xi’an Jiaotong University, Xi’an 710049, China