1. South China Botanical Garden, Chinese Academy of Sciences,723 XingKe Road, Tianhe District, Guangzhou 510650, China
2. University of Chinese Academy of Sciences, 19 Yuquan Road, Shijingshan District, Beijing 100049, China
3. Swiss Federal Institute for Forest, Snow and Landscape Research WSL, Zurcherstrasse 111, Birmensdorf 8903, Switzerland
4. Institute of Terrestrial Ecosystems, ETH Zürich, Ramistrasse 101, Zurich 8902, Switzerland
5. School of Geographical Sciences, Northeast Normal University, 5268 Renming Road, Nanguan District, Changchun 130024, China
6. Jiyang College, Zhejiang A&F University, 72 Puyang Road,Jiyang District, Zhuji 311800, China
7. College of Forestry, Guangxi University, 100 East University Road, Nanning 530004, China
8. Plant Ecology Research Laboratory, School of Architecture, Civil and Environmental Engineering, EPFL, Route Cantonale, Lausanne 1015, Switzerland