1. Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and Conservation, Taizhou 318000, China
2. Institute of Ecology, Taizhou University, Taizhou 318000, China
3. School of Life Science, Shanxi Normal University, Linfen 041004, China
4. Ecophysiology Group, Forest Dynamics, Swiss Federal Research Institute WSL, 8903 Birmensdorf, Switzerland