1. Faculty of Recourses and Environmental Science, and Hubei Key Laboratory of Regional Development and Environmental Response, Hubei University, Wuhan, China
2. Key Laboratory of Natural Resources Monitoring and Supervision in Southern Hilly Region, Ministry of Natural Resources, Second Surveying and Mapping Institute of Hunan Province, Changsha, China
3. Faculty of Resources and Environmental Science, Hubei University, Wuhan, China