1. State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing, China
2. Sierra Nevada Research Institute, School of Engineering, University of California at Merced, Merced, CA, USA
3. College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, China
4. Department of Earth System Science, Tsinghua University, Beijing, China
5. CAS Key Laboratory of Forest Ecology and Management, Institute of Applied Ecology, Shenyang, China