1. Jilin Provincial Academy of Forestry Sciences
2. Department of Renewable Resources, Faculty of Agriculture, Life, and Environmental Sciences, University of Alberta
3. Ontario Ministry of Natural Resources and Forestry, Ontario Forest Research Institute
4. Forestry Division, Department of Agriculture and Forestry, Government of Alberta
5. College of Forestry, Beijing Forestry University
6. Station d’Ecologie Théorique et Expérimentale
7. CEFE, Univ Montpellier
8. School of Agriculture and Biology, and Shanghai Urban Forest Ecosystem Research Station of National Forestry and Grassland Administration, Shanghai Jiao Tong University