1. Key Laboratory of Alpine Ecology Institute of Tibetan Plateau Research Chinese Academy of Sciences Beijing 100101 China
2. University of Chinese Academy of Sciences Beijing 100049 China
3. CAS Center for Excellence in Tibetan Plateau Earth Sciences Beijing 100101China
4. College of Biology and the Environment Nanjing Forestry University Nanjing 210037China
5. Dendro Sciences Group Forest Dynamics Unit Swiss Federal Research Institute WSL Zürcherstrasse 111 8903 Birmensdorf Switzerland
6. Department of Ecology, W. Szafer Institute of Botany Polish Academy of Sciences ul. Lubicz 46 31‐512 Krakow Poland
7. Laboratory of Tree‐Ring Research University of Arizona 1215 East Lowell Street Tucson Arizona 85721 USA
8. Instituto Pirenaico de Ecología (IPE‐CSIC) Avenida Montañana 1005 50059 Zaragoza Spain