1. State Key Laboratory of Vegetation and Environmental Change Institute of Botany, Chinese Academy of Sciences Beijing China
2. University of Chinese Academy of Sciences Beijing China
3. School of Plant and Environmental Science Virginia Tech Blacksburg VA USA
4. College of Life Sciences Nankai University Tianjin China
5. School of Land Science and Technology China University of Geosciences Beijing China
6. Soil and Water Science Department Tropical Research and Education Center University of Florida Homestead FL USA