【Key words】 Non-point pollution； Non-point TN pollution； Export coefficient modeling approach； Correlative approach； Export coefficient； Load trend.；
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non-point pollution source [环境] 非点污染源 ; 面污染源
non-point pollution 面源污染 ; 非点源污染
Potential Non-point Pollution Index 潜在非点源污染指数
Countermeasures Against Agricultural Non-Point Pollution 南水北调中线水源区农业面源污染防治对策研究
non-point pollution nps 非点源污染
non-point pollution load 非点源污染负荷
urban non-point pollution 城区面源污染
non-point pollution model 非点源污染模型
Soil nutrients loss is the main way of non point pollution from farmland.
土壤养分流失是农田非点源污染的主要形式。
In the research of non point pollution, how to calculate soil erosion modulus is a very important step.
在非点源污染研究过程中，土壤流失量的计算是一个重要环节。
The domestic sewage discharge is the important source of non-point pollution in rural area.
农村生活污水是农村面源污染的重要来源。
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