1. Key Laboratory of Alpine Ecology, Institute of Tibetan Plateau Research Chinese Academy of Sciences Beijing China
2. CAS Center for Excellence in Tibetan Plateau Earth Sciences Beijing China
3. College of Biology and the Environment Nanjing Forestry University Nanjing China
4. School of Natural Resources and the Environment University of Arizona Tucson Arizona USA
5. Laboratory of Tree‐Ring Research University of Arizona Tucson Arizona USA
6. W. Szafer Institute of Botany Polish Academy of Sciences Kraków Poland
7. Instituto Pirenaico de Ecología (IPE‐CSIC) Zaragoza Spain