1. Research Institute of Forest Ecology, Environment and Protection Chinese Academy of Forestry Beijing China
2. Key Laboratory of Biodiversity Conservation State Forestry and Grassland Administration Beijing China
3. Department of Biological Sciences Duquesne University Pittsburgh PA USA
4. Key Laboratory for Biodiversity Science and Ecological Engineering Ministry of Education College of Life Sciences Beijing Normal University Beijing China
5. Institute of Desertification Studies Chinese Academy of Forestry Beijing China
6. Qilian Mountain National Park Qinghai Administration Xining China
7. The People's Government of Duocai Township Zhiduo China
8. Research Institute of Forest Resource Information Techniques Chinese Academy of Forestry Beijing China