1. Stockbridge School of Agriculture
2. University of Massachusetts
3. Amherst
4. USA
5. Department of Analytical Chemistry
6. College of Resources and Environmental Sciences
7. Fujian Agriculture and Forestry University
8. Fuzhou 350002
9. China
10. Research Institute of Subtropical Forestry
11. Chinese Academy of Forestry
12. Fuyang
13. Institute of Applied Ecology
14. Chinese Academy of Sciences
15. Shenyang 110016
16. USDA Forest Service
17. NRS
18. Durham
19. School of Earth and Atmospheric Sciences
20. Georgia Institute of Technology
21. Atlanta
22. The Connecticut Agricultural Experiment Station
23. New Haven