1. School of Geography Sciences; Nanjing Normal University; Wenyuan Road 1, Nanjing 210023 China
2. Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application; Wenyuan Road 1, Nanjing 210023 China
3. State Key Laboratory Cultivation Base of Geographical Environment Evolution (Jiangsu Province); Wenyuan Road 1, Nanjing 210023 China
4. Key Laboratory of Virtual Geographic Environment (Nanjing Normal University); Ministry of Education; Wenyuan Road 1, Nanjing 210023 China
5. Department of Plant Ecology (IFZ); Justus-Liebig University Giessen; Heinrich-Buff-Ring 26, 35392, Giessen Germany
6. School of Biology and Environmental Science; University College Dublin; Dublin 4, Dublin, Ireland