1. Doctoral Student, College of Resources and Environment, Univ. of Chinese Academy of Sciences, Beijing 100049, China.
2. Professor, College of Resources and Environment, Univ. of Chinese Academy of Sciences, Beijing 100049, China; State Key Laboratory of Resources and Environmental Information System Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China; Key Laboratory of Quantitative Remote Sensing Information Technology, Academy of Opto-Electronics, Chinese Academy of Sciences, Beijing 100094, China.
3. Professor, State Key Laboratory of Resources and Environmental Information System Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China; Univ. of Chinese Academy of Sciences, Beijing 100049, China (corresponding author).
4. Professor, Key Laboratory of Agri-informatics, Ministry of Agriculture/Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, China; Icube (UMR7357), UdS, CNRS, 300 Bldg. Sébastien Brant, CS10413, Illkirch 67412, France.
5. Doctor, College of Resources and Environment, Univ. of Chinese Academy of Sciences, Beijing 100049, China.
6. Doctor, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumchi, Xinjiang 830011, China.