而BOD的主要贡献者则是点源污染。
污染源主要来自于河段上游点源污染。
The pollutants are mainly from point pollution source of upper stream of Zhuozhang river.
研究了连续点源污染物在近区的垂向扩散规律。
The mixing law of the continuous point source, in the nature flow, is studied.
点源污染主要来自工业工厂和城市废水处理厂。
Point source pollution comes mainly from industrial facilities and municipal wastewater treatment plants.
随着点源污染控制加强，非点源问题更加突出。
With the effective control of source pollution, non-point source pollution becomes more outstanding.
单个点源污染的环境损害成本估算是本文的核心。
Calculating the environmental damage cost of a single point source is the core of this paper.
随着点源污染控制水平的提高，非点源污染问题日益突出。
With the improvement of the standards in point-source pollution control, the issues of non-point source (NPS) pollution become increasingly prominent.
随着上海城区点源污染逐步得到控制，面源污染已受到高度关注。
With the control progressively given to urban point source pollution in Shanghai, the non-point source pollution has been getting more attention.
随着对水体点源污染的有效控制，水体负荷结构发生了明显的变化。
The load composition of water pollution has been changed obviously with the effectively control on point source pollution in recent years.
由于没有固定的污染源，控制非点源污染要比控制点源污染困难得多。
Because of not having fixed point sources, it was difficult to control non - point sources.
由于没有固定的污染源，控制非点源污染要比控制点源污染困难得多。
Because of not having a fixed point sources, it was difficult to control non-point sources.
因此水污染控制必须以点源污染和农村生活面源污染为双重控制目标。
Therefore, the primary pollution control objective must be point source pollution and diffuse source of domestic wastewater in rural areas.
根据排放方式的不同，水体污染可以分为点源污染和非点源污染两大类。
The water pollution can be divided into two major categories of point source and area-source pollution according to the different way of discharge.
随着点源污染的有效管理和控制，非点源污染已成为水环境污染的主要原因。
With the effective control of point source pollution, non-point source pollution becomes the main factor of water pollution.
高锰酸盐指数主要是由点源污染引起，即工业废水和城镇生活污水的污染为主。
The pollution of potassium permanganate was caused by the point pollution sources mainly, e. g. the waste water from factories and urban families.
随着点源污染的有效治理，农业面源污染将成为三峡库区水体的最主要污染源。
With strengthening control of point source pollution, agricultural non-point source pollution will be the main pollution source to the Three-Gorge Reservoir area.
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。
Under the circumstance that point source pollution is basically controlled, non point source pollution has already become an important pollutant source.
随着点源污染控制的加强，非点源污染逐步成为我国乡村流域污染物构成的主体。
With the strengthened control of point source pollution, the non-point source pollution gradually becomes the major parts of pollution in Chinese rural rivers.
结果表明：辽河流域地表水水质污染以有机污染为主，点源污染重于面源污染。
The result indicates that the pollution of surface water in Liaohe river basin is mainly the organic pollution, the point source polluted is weighter than the surface pollution.
在发达国家，点源污染基本得到有效控制，城市面源污染成为水体污染的主要因素。
In developed countries, point source pollution has been efficiently controlled and urban non-point source pollution caused by rainfall has become the main causation of water pollution.
我国的流域水管理已经基本实现了对点源污染的控制，因此面源污染的问题日显重要。
In China, point source pollution has been under control in watershed management; therefore, the problems of non-point source pollution control are highlight important.
随着对点源污染管理力度的增大，农业面源污染已逐渐成为千岛湖区域的主要污染源之一。
Agriculture non-point source pollution has become one of the most important source pollution of Qiandao lake area with the control of the point source pollution.
随着点源污染得到逐步治理，面源污染已成为水体污染的主要原因，并有逐渐恶化的趋势。
With the point source pollution being reduced gradually, the non-point source pollution has become the main factor of the water pollution and tends to be worse.
与点源污染相比，非点源污染具有随机性、间歇性、滞后性、复杂性等特点，不易控制和治理。
In contrast with point source pollution, non-point pollution is difficult to control and prevent because of its randomicity, intermittence, hysteresis and complexity.
目前的水治理技术普遍存在运行费用高，基建投资大的特点，并且主要集中在点源污染治理上。
Water environment control technology exist some difficulties such as high costs, and so on and it just focuses on the treatment of point source pollution at present.
在点源污染逐步得到有效控制的今天，面源，这一对地表水体水质有严重影响的污染源在发达国家已经引起了极大的关注。
The nonpoint source pollution, which has played an important role on surface water pollution has been given much attention because of the effective controlling of the point source pollution.
土壤养分的平衡分析结果表明，成都平原耕地土壤管理宜采取“稳氮、控磷、增钾”的施肥方法和严格控制各种点源和非点源污染物进入土壤。
The balance analysis results of soil nutrient indicated that the fertilization methods of cropland management in Chengdu Plain were firming nitrogen, controlling phosphorus and increasing potassium.
通过对346个具有潜在化学污染风险的点进行筛查，这一全球环境基金项目识别出58个重点污染源作为采取后续措施的重点。
The project succeeded in screening 346 sites with potential chemical contamination risks and identifying 58 priority pollution sources for follow-up mitigation actions.
随着集中的污水处理解决了城市生活污水的污染问题，分散的点污染源已经开始引起人们的重视。
With centralized wastewater treatment resolved the pollution problems of urban sewage, Decentralized point pollution has begun to get a great attention.
随着集中的污水处理解决了城市生活污水的污染问题，分散的点污染源已经开始引起人们的重视。
With centralized wastewater treatment resolved the pollution problems of urban sewage, Decentralized point pollution has begun to get a great attention.
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