China's improving inland surface water quality since 2003.,Science Advances

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China's improving inland surface water quality since 2003.
Science Advances ( IF 11.7 ) Pub Date : 2020-01-03 , DOI: 10.1126/sciadv.aau3798
Ting Ma _{1,

2,

3} , Na Zhao _{1,

2} , Yong Ni ₄ , Jiawei Yi _{1,

2} , John P Wilson _{1,

2,

5} , Lihuan He ₄ , Yunyan Du _{1,

2} , Tao Pei _{1,

2} , Chenghu Zhou _{1,

2} , Ci Song _{1,

2} , Weiming Cheng _{1,

2}

Affiliation

Increased human activity threatens inland water quality in China. Major efforts have been made to alleviate water pollution since 2001. Understanding how water quality responds to these forces can help to guide future efforts to maintain water security and sustainability. We here analyzed the nationwide variability of inland water quality across China from 2003 to 2017 and its responses to anthropogenic discharges. We show that water quality has been improved markedly or was maintained at favorable levels over the country because of reduced discharges in the industrial, rural, and urban residential sectors. However, growing discharges from the agricultural sector threaten these gains. Moreover, the present status of water pollution is relatively severe in north and northeast China. Our findings suggest that China's water quality would further benefit from more flexible strategies for mitigation measures, which respond to regional differences in the factors that influence water pollution levels in specific regions.

更新日期：2020-01-04

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