1. State Key Laboratory of Remote Sensing Science, Jointly Sponsored by the Aerospace Information Research Institute, Chinese Academy of Sciences and Beijing Normal University, Beijing, China
2. Macro Agriculture Research Institute, College of Resource and Environment, Huazhong Agricultural University, Wuhan, China
3. College of Urban and Environmental Sciences, Tianjin Normal University, Tianjin, China
4. Department of Earth and Environment, Boston University, Boston, MA, USA