1. Precision Forestry Key Laboratory of Beijing, Beijing Forestry University, Beijing 100083, China
2. Research Centre of Ecology & Environment for Coastal Area and Deep Sea, Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 511458, China
3. School of Ecology, Environment and Resources, Guangdong University of Technology, Guangzhou 510006, China
4. College of Mathematics and Computer Science, Zhejiang A & F University, Hangzhou 311300, China
5. Planning and Design Office, Ningxia Forestry Survey and Planning Institute, Yinchuan 750010, China
6. School of Geographical Sciences, Harbin Normal University, Harbin 150028, China
7. College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China