Urban surface runoff is the second large non-point pollution source next to agriculture.

城市地表径流是仅次于农业面污染源的第二大面污染源。

youdao

This paper reviews the development of research of agricultural non-point pollution source model, and points out the future research direction.

本文概述了国内外的农业非点源污染模型研究的历史和现状，并指出了农业非点源污染模型的研究方向。

youdao

The pollutants load investigation in Yunlong reservoir basin shows that the non-point pollution source is the main pollution source. The TN is 91.8%, TP is 98.4% in total water inflow volume.

云龙水库径流区污染物负荷的调查结果显示，云龙水库水污染特征以面源污染为主，入库水量TN占91.8%，TP占98.4%。

youdao

The pollutants load investigation in Yunlong reservoir basin shows that the non-point pollution source is the main pollution source. The TN is 91.8%, TP is 98.4% in total water inflow volume.

云龙水库径流区污染物负荷的调查结果显示，云龙水库水污染特征以面源污染为主，入库水量TN占91.8%，TP占98.4%。

youdao