1. Ministry of Education Key Laboratory for Earth System Modelling, Center for Earth System Science, Tsinghua University, Beijing, PR China
2. State Key Laboratory of Remote Sensing Science, College of Global Change and Earth System Science, Beijing Normal University, Beijing, PR China
3. Ministry of Education Key Laboratory for Biodiversity and Ecological Engineering, Beijing Normal University, Beijing, PR China
4. Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
5. Department of Geography, University of Utah, Salt Lake City, UT, USA