But the main contributor of BOD was point source pollution.
而BOD的主要贡献者则是点源污染。
And agricultural non-point source pollution is the top priority.
而农业面源污染又是重中之重。
Soil erosion and non point source pollution are two serious environmental issues.
土壤侵蚀与非点源污染是两大重要的环境问题。
Soil erosion and agricultural area-source pollution are commonly existed phenomenon.
土壤侵蚀和农业面源污染是普遍存在的一种现象。
Many studies show that wetlands can control the non-point source pollution effectively.
国内外许多研究表明，自然湿地能有效地控制非点源污染。
SWAT model was used to evaluate agricultural non - point source pollution of Daning River watershed.
以大宁河流域为研究区域，应用SWAT模型进行了流域农业非点源污染负荷的模拟计算。
With the effective control of source pollution, non-point source pollution becomes more outstanding.
随着点源污染控制加强，非点源问题更加突出。
The prevention system mechanisms serious flaw is causes the agricultural surface source pollution the system root.
防治制度机制的严重缺失是导致农业面源污染的体制根源。
Topography and vegetation cover rate were two of the most important influence factors of nonpoint source pollution.
地形和植被覆盖度是最重要的两个面源污染影响因素。
Soil phosphorus as agricultural non-point source pollution is one of the main factors which led to water pollution.
土壤磷素的农业非点源污染是导致水体污染的最主要原因之一。
Soil phosphorus as agricultural non-point source pollution is one of the main factors which lead to water pollution.
土壤磷素的农业非点源污染是导致水体污染的最主要的原因之一。
The result indicated that eutrophication would not be induced in Baiguishan Reservoir without point source pollution.
结果表明，流域内如果没有点源污染，水库不会发生富营养化。
Nutrient export coefficient of land use is an important parameter for constructing model of non-point source pollution.
各种土地利用类型营养盐输出系数是建立非点源污染模型的重要参数。
It may conclude that the drainage control plays a significant role in water saving and non-point source pollution reduction.
因此，控制排水措施具有节约灌溉用水和减少农业非点源污染的重要意义。
The study on watershed distribution of agricultural non - point source pollution is important to improve environmental quality.
农业非点源污染的流域分配研究对于提高环境质量具有重要的现实意义。
The type, source and harm of pollutants of urban non-point source pollution and its influence on the receiving water are analyzed.
对城市面源污染物的种类、来源和危害，以及对受纳水体的影响两方面综合进行分析；
Nitrogen leaching from a sloping land is one of the important causes of soil degradation and agricultural non-point source pollution.
坡地氮素淋溶是导致坡地土壤质量退化和农业非点源污染的重要原因之一。
This model can provide scientific methods for urban water environment programming and non-point source pollution control and management.
该模型可为城市水环境规划、面源控制和管理研究提供科学手段。
Once occurred in the US because the water source pollution creates in the jejunum bacterium flexuosus poison event approximately has 200.
在美国曾经发生的一起因水源污染造成的空肠弯曲菌中毒事件中约有200。
So we should designate sanitary zone of water source, control soil and water loss and non - point source pollution to protect water source.
建议采取划定水源保护区、加大水土流失治理力度、控制面源污染等措施保护水源。
Agricultural non point source pollution is arising more and more attentions as one of the major causes leading to deterioration of water quality.
农业非点源污染作为引起水质恶化的主要原因之一，已越来越受到人们的重视。
The rainwater is one of carriers of pollutants in urban-environment, and the polluted rainwater has been important urban non-point source pollution.
雨水是城市环境中各种污染物的载体之一，受污染的雨水已经成为重要的城市非点源污染。
The research on non-point source pollution based on single event is comparatively mature, but there are few studies on continuously modeling in China.
基于单场洪水的非点源污染研究已相对成熟，而有关非点源污染连续模拟的研究在我国相对较少。
The model was applied to Hanyang District, Wuhan to study urban non-point source pollution control technology, and satisfactory results were achieved.
所建模型已成功地应用于武汉市汉阳地区城市面源污染控制技术研究，获得了满意的结果。
Under the circumstance that point source pollution is basically controlled, non point source pollution has already become an important pollutant source.
在点源污染得到初步控制的情况下，非点源污染已经成为水源地的重要污染源。
Furthermore, the cause of the pollution leading to the reservoir eutrophication has been found, the leading pollution source is surface source pollution.
分析了水库富营养化的成因，面源污染是造成水库富营养化的最主要原因。
Agricultural drainage is one of important contributors of non-point source pollution, and it is difficult to treat in practice due to its dispersed nature.
农田排水是造成农业非点源污染的一个重要来源，由于其具有分散性而难以人为控制。
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。
The most ambitious water quality provision of the 1987 Amendments relates to non-point source pollution, that is, run-off from agricultural and urban areas.
1987年的修正案中，最理想的水质规定涉及到特定污染源的污染，也就是说来自农业和都市区雨水的污染。
The most ambitious water quality provision of the 1987 Amendments relates to non-point source pollution, that is, run-off from agricultural and urban areas.
1987年的修正案中，最理想的水质规定涉及到特定污染源的污染，也就是说来自农业和都市区雨水的污染。
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