1. School of Resource and Environmental Science, Wuhan University, Wuhan, China
2. Key Laboratory of Tropical and Subtropical Natural Resources Monitoring in South China, Ministry of Natural Resources, Guangzhou, China
3. College of Water Sciences, Beijing Normal University, Beijing, China
4. Surveying and Mapping Institute, Lands and Resource Department of Guangdong Province, Guangzhou, China
5. School of Public Administration, China University of Geosciences, Wuhan, China