Spatial pattern and water environmental impact of nitrogen and phosphorus emissions from agricultural sources in China in recent 30 years
MA En-pu, CAI Jian-ming, LIN Jing, LIAO Liu-wen, GUO Hua, HAN Yan
JOURNAL OF NATURAL RESOURCES . 2021, (3): 752 -770 .  DOI: 10.31497/zrzyxb.20210316