1. Key Laboratory of Remote Sensing and Geographic Information System of Henan Province, Institute of Geography, Henan Academy of Sciences, Zhengzhou 450052, China
2. State Key Laboratory of Subtropical Silviculture, Zhejiang Agriculture and Forest University, Hangzhou 311300, China
3. Qianyanzhou Ecological Research Station, Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
4. Key Laboratory for Silviculture and Conservation of Ministry of Education, Beijing Forestry University, Beijing 100083, China
5. China Siwei Surveying and Mapping Technology Co., Ltd., Beijing 100086, China