About the Authors

Xiapu Gai

Affiliation Key Laboratory of Nonpoint Source Pollution Control, Ministry of Agriculture/Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, China

Hongyuan Wang

Affiliation Key Laboratory of Nonpoint Source Pollution Control, Ministry of Agriculture/Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, China

Jian Liu

Affiliations Key Laboratory of Nonpoint Source Pollution Control, Ministry of Agriculture/Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, China, United States Department of Agriculture–Agricultural Research Service (USDA-ARS), Pasture Systems and Watershed Management Research Unit, University Park, Pennsylvania, United States of America

Limei Zhai

Affiliation Key Laboratory of Nonpoint Source Pollution Control, Ministry of Agriculture/Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, China

Shen Liu

Affiliation Key Laboratory of Nonpoint Source Pollution Control, Ministry of Agriculture/Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, China

Tianzhi Ren

Affiliation Institute of Agro-Environmental Protection, Ministry of Agriculture, Tianjin, China

Hongbin Liu

liuhongbin@caas.cn

Affiliation Key Laboratory of Nonpoint Source Pollution Control, Ministry of Agriculture/Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: HBL HYW TZR. Performed the experiments: XPG SL. Analyzed the data: XPG HBL HYW JL LMZ TZR. Contributed reagents/materials/analysis tools: XPG HYW SL. Wrote the paper: XPG HYW JL.