1. Fujian Provincial Key Laboratory for Subtropical Resources and Environment, Fujian Normal University, Fuzhou, China
2. School of Geographical Sciences, Fujian Normal University, Fuzhou, China
3. School of Environmental & Resource Sciences, Zhejiang A&F University, Hangzhou, China
4. College of Geoscience and Surveying Engineering, China University of Mining and Technology, Beijing, China
5. Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, China