1. State Key Laboratory of Water Environment SimulationSchool of EnvironmentBeijing Normal University Beijing China
2. Department of Natural ResourcesCornell University Ithaca New York
3. Institute of Environment and Sustainable Development in AgricultureChinese Academy of Agricultural Sciences Beijing China
4. National Plateau Wetland Research CenterCollege of Wetlands Southwest Forestry University Kunming China
5. Department of Ecosystem Science and SustainabilityNatural Resource Ecology Laboratory Fort Collins Colorado
6. Beijing Academy of Agricultural and Forestry Sciences Beijing China
7. School of Ecology and EnvironmentInner Mongolia University Hohhot China