Affiliation: | 1. Center for Resources, Environment and Food security, (CREFS), China Agricultural University, Beijing, 100193, China 2. College of Resources and Environment, Northwest A & F University, 712100, Yangling, China 3. Institute of Soil and Fertilizer, Heilongjiang Academy of Agricultural Sciences, Harbin, 150086, China 4. College of Resources and Environment, Southwest University, Chongqing, 400716, China 5. Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, 100081, Beijing, China 6. Department of Soil Quality, Wageningen University, P.O. Box 47, 6700 AA, Wageningen, The Netherlands
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