Institution: | 1.Key Laboratory of Mollisol Agroecology, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, 138 Haping Rd, Harbin, 150081, People’s Republic of China ;2.Biogeochemistry and Nutrient Cycling Laboratory, Department of Land, Air and Water Resources, University of California Davis, Davis, CA, 95616, USA ;3.Department of Soil Science, University of Wisconsin-Madison, Madison, Wisconsin, 53709, USA ; |