1. Key Laboratory of Agricultural Water Resources, Hebei Key Laboratory of Soil Ecology, Center for Agricultural Resources Research, Institute of Genetic and Developmental Biology, The Chinese Academy of Sciences, 286 Huaizhong Road, Shijiazhuang 050021, Hebei, China
2. International Institute for Applied Systems Analysis (IIASA), Laxenburg A-2361, Austria
3. The Institute of Environmental Engineering, University of Zielona Góra, Zielona Góra 65-417, Poland
4. Wageningen Environmental Research, Wageningen University and Research, P.O. Box 47, 6700 AA, Wageningen, The Netherlands
5. Sustainable Agricultural Sciences, Rothamsted Research, North Wyke, Okehampton EX20 2SB, U.K.
6. School of Land Resources and Urban&Rural Planning, Hebei GEO University, Shijiazhuang 050031, China