1. Long‐term Research Station of Alpine Forest Ecosystems Provincial Key Laboratory of Ecological Forestry Engineering Institute of Ecology and Forestry Sichuan Agriculture University Chengdu 611130 China
2. Institute of Environment Sciences University of Quebec at Montreal Montreal Quebec H3C 3P8 Canada
3. Laboratory for Ecological Forecasting and Global Change College of Forestry Northwest A & F University Yangling Shaanxi 712100 China
4. Collaborative Innovation Center for Ecological Security in the Upper Reaches of the Yangtze River Chengdu 611130 China
5. College of Life Science Sichuan Normal University Chengdu 610101 China