The livestock sector is probably the largest source of water pollution, contributing to eutrophication, 'dead' zones in coastal areas and degradation of coral reefs.

畜牧业很可能是水污染的最大来源，造成富营养化、沿海地区出现“死区”和珊瑚礁退化。

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The water quality of Miyun reservoir is at medium-eutrophication situation, which is mainly caused by the non-point source pollution (NPS) in the watershed.

目前水质处于中等富营养化程度，非点源是主要污染来源，土地利用则是影响非点源的主要因素。

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Therefore, it may turn into a potential source for the eutrophication in near shore water.

因此，可能成为近岸水体富营养化的潜在威胁。

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