1. Key Laboratory of Land Surface Pattern and Simulation Institute of Geographical Sciences and Natural Resources Research Chinese Academy of Sciences Beijing China
2. University of Chinese Academy of Sciences Beijing China
3. Department of Earth, Atmospheric, and Planetary Sciences Purdue University West Lafayette IN USA
4. Biogeochemistry Research Group Department of Environmental and Biological Sciences University of Eastern Finland Kuopio Finland
5. State Key Laboratory of Vegetation and Environmental Change Institute of Botany Chinese Academy of Sciences Beijing China