1. State Key Laboratory of Vegetation and Environmental Change Institute of Botany, the Chinese Academy of Sciences Beijing China
2. Department of Geography University of Zurich Zurich Switzerland
3. Key Laboratory of Tree Breeding and Cultivation, Forestry and Grassland Administration, Research Institute of Forestry, Chinese Academy of Forestry Beijing China
4. Institute of Ecology Leuphana University of Lüneburg, Universitätsallee Lüneburg Germany
5. Institute of General Ecology and Environmental Protection Technische Universität Dresden Tharandt Germany
6. School of Soil and Water Conservation Beijing Forestry University Beijing China
7. Department of Nature Conservation and Landscape Ecology University of Freiburg Freiburg Germany
8. Freiburg Institute for Advanced Studies (FRIAS) University of Freiburg Freiburg Germany