1. Key Laboratory of Agricultural Water Resources, Center for Agricultural Resources Research, Institute of Genetic and Developmental Biology, Chinese Academy of Sciences, 286 Huaizhong Road, Shijiazhuang 050021, Hebei, China.
2. Wageningen University, Department of Soil Quality, P.O. Box 47, 6700 AA Wageningen, Netherlands.
3. College of Resources and Environmental Sciences, Hebei Agricultural University, Baoding 071001, China.
4. Wageningen University, Environmental Research, P.O. Box 47, 6700 AA Wageningen, Netherlands.
5. Ecosystems Services and Management Program, International Institute for Applied Systems Analysis, A-2361 Laxenburg, Austria.
6. Rothamsted Research, Sustainable Agriculture Sciences, North Wyke, Devon EX20 2SB, UK.
7. Bristol Veterinary School, Langford, Somerset BS40 5DU, UK.
8. College of Resources and Environmental Sciences, China Agriculture University, Beijing 100193, China.