1. The State Key Laboratory of Remote Sensing Science, Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, Beijing 100101, China.
2. University of Chinese Academy of Sciences, Beijing 100049, China.
3. Department of Environmental Science, Policy, and Management, University of California, Berkeley, CA 94720–3114, USA.
4. Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China.