水体自净能力

R（NO3-N）与Chl-a的显著正相关性以及水域中生物种类的多样性和较高的生物资源量，则显示了水体自净能力对海洋生物的重大影响作用。

The strong positive correlation of R ( NO3-N ) and Chl-a , the variety of biological lives and the higher biotic stock number in the water area show that the self-purifying ability of water body has a great effect on the marine lives .

疏浚对影响上覆水体自净能力的研究

Influence of Dredging on Self-Purification Ability of Overlying Water

污水氮、磷元素排放量已经超过地表水体自净能力，使江河湖海水中逐渐形成富营养化环境。

The discharge of nitrogen and phosphorus are excess the self-cleaning ability of surface water , the eutrophication of rivers lakes and sea are more clearly .

在控制污染负荷排放的同时，也要保证河流基本流量，提高水体自净能力，改善渭河水体的污染现状。

To improve the self-purification ability and pollution situation of river water , control the pollution load and ensure the river basic flow are two important ways .

城市河道生态护岸具有滞洪补枯与调节水位、增强水体自净能力及保护生物植被的功能。

Ecological revetment of urban river course has functions of detaining flood , absorbing and storing water , regulating water level , increasing self-purification capacity of water and protecting vegetation .

低流速传热管自动清洗强化齿型扭带研究加快以提高水环境容量和水体自净能力的工程措施与生态措施的建设。

Research on the Twisted Strip with Teeth to Enhance Self-cleaning Ability of Heat Transfer Tubes at Low Flowing Velocity enhance the capability water environment and water body 's self-cleaning ability .

三峡水库正在形成，由于库区段的长江流速明显减缓，导致水体自净能力大幅度降低。

For the forming reservoir along Three Gorges , owing to current velocity of flow of Yangtze River becoming slower , the self-clean capacity of the water body would be decreased obviously .

由于表面活性剂对水生植物、水生动物及微生物的损害比较大，影响水体自净能力并加速水体富营养化进程。

The surfactants can seriously harm the aquatic plants , the aquatic animals , and the microorganisms , impair the self-purification capacity of the water body , speed the water eutrophication process .

三峡库区蓄水后水体自净能力降低，突发水污染事故对库区水质的威胁加大。

The water self-clarification ability in the reservoir area is much lower and the risk of the emergency of water pollution is more serious after the accomplishment of water storage in Three Gorges .

通过对河道的生态改造，恢复河道生态功能，提高水体自净能力，成为深圳市的生态景观廊道，达到人与自然的和谐相处。

With the work of river ecology restoration and ecological function improvement , water self-purification enhancement , the riverbanks become the ecology landscape corridors , and the people live in harmony with the nature .

通过对太阳能、风能、生物质能等可再生能源的利用，加强水体自净能力，最大限度地体现景观水体的生态化效应。

Through the usage of the renewable energy , such as solar energy , wind energy , biomass energy etc , strengthens the possibility of water self-purification , utmost ground reflects of the ecological landscape water .

但流域水生态环境问题并未从根本上得到解决，流域水资源短缺，水体自净能力差、水生态功能下降、生物多样性降低。

But water environment problem of Huaihe River basin ( Henan section ) had not been fundamentally solved , the shortage of water resources , the poor of water purification capacity , water ecological function declined , reduction in biodiversity .

水环境容量是水体自净能力的度量，它也是一种自然环境资源，合理开发和利用这一宝贵资源可以减少污水处理费用，直接获得经济效益。

Capacity of water environment is measure of self-purification ability of water body . It is a kind of natural environmental resources , and reasonably developing and making use of the precious resources can reduce wastewater treatment expenses and get economic performance .

20~37℃时底泥中污染物的释放量明显增加，微生物的新陈代谢能力有较大提高，水体的自净能力较强。

In 20 ~ 37 ℃, the pollutants release amount and metabolism of microorganism increased distinctly , the selfpurification ability of water body was enhanced .

水体的自净能力随季节的不同会有所差别，充分利用水体自净能力及其季节性变动，就可以有效的防治水体污染。

The water self-purification capacity changes between seasons , and if we can use the seasonal fluctuation scientifically and economically , we can prevent and cure water pollution more effectively .

通过对水中生态食物链的分析，提出了通过投加以光合细菌为主的复合细菌群来强化湖泊水体生物自净能力，改善湖泊水体水质的方法。

Through analyzing the ecological food chain in water , the method adding compound bacterial groups in which photosynthetic bacteria were in the majority was suggested to intensify self purification ability of the lake and to better water qualities of the lake .

三峡水库蓄水后，库区河流水动力情势发生了根本性的改变，流速变缓，水体的自净能力下降，据监测资料，库区支流水质逐年下降。

After Three Gorges Reservoir stores water , hydrodynamic condition changed ultimately at the branch rivers of Three Gorges Reservoir Area , velocity becomes slowly , self-purification capacity comes down . According to monitoring data , Reservoir Area tributary quality comes down year by year .

指出了水环境治理、保护和建设，必须同时或及时开展水生态的修复，创造水边和水中生物多样性的环境，因地制宜地连接生物链，不断提高水体的自净能力。

The paper points out when treatment , protection and construction of water environment are carried out water ecology must be recovered in time to create various biological environment nearby or in river , link bio-chain in the light of local condition and heighten self-clean capacity of water body continuously .

其中水资源的污染问题尤为突出，水体本身具有自净能力，但是滥用和过度排污造成水质恶化等诸多问题。

In which , pollution of water resources is particularly prominent , water itself has self-purification capacity , but the abuse of water resources and excessive sewage cause many issues like deterioration of water quality .

多孔射流扩散器排放城市污水是充分利用天然水体环境容量和自净能力的有效途径。

The use of submerged multiport diffusers presents an efficient method to rapidly dilute large volumes of wastewater discharged into ambient receiving water .

除排污口外，污染物含量一般低于一类海水标准，表明了水体具有较强的自净能力，环境容量较大；

Beside outlet of sewage water , the content of pollutants in seawater is generally lower than the first type seawater standard , which indicates larger self purification competence and environmental potential in coastal water .

本文从概念上阐述了广义水环境的内涵，分析了城市水系流动缓慢、水体交换性能差、水体自净能力弱等特点。

The authors introduced an extended concept of water environment and analyzed the basic characteristics of urban water system , such as low flow velocity , poor exchange process and weak self-purification .

由于污水的收集率、处理率低，绝大多数的污水直接排入城市水体，大大超出了受纳水体的自净能力。

Because a low collecting and dealing rate of sewage , most polluted water will go directly into city water systems . It goes greatly beyond the capacity of self-clearance of receiving water system .

养殖水体浮游植物和微生物的代谢偶联，是反映水体自净能力，保持水体稳定的基础。

Metabolism coupling of phytoplankton and microorganism is the basis of indicating culture water 's self purification ability and keeping it stable .

人工景观水体具有水域面积小、水体流动性差、水环境容量小、水体自净能力低等特点，气候变化、人类活动及周边环境等均会对之造成污染。

Artificial scenic water with small size , poor liquidity , low environmental capacity , and low self-purification ability , which would be easily polluted by climate change , human activities and the surrounding environment .

分别在已疏浚和未疏浚河道底泥的影响下，考察了上覆水体自净系数&BOD减少速度系数和COD减少速度系数，以比较疏浚对于改善水体自净能力的效果。

We examined self - purifying coefficient - BOD and COD reduction coefficient in overlying water at the presence and absence of dredging sediment as well as comparison the dredging effectiveness .

也就是说，水体不仅具有对人口的承载能力，而且还具有对经济的承载能力，同时水体又具有自净能力，能够容纳一定限度的污染。

In other words , water not only has the carrying capacity of the population , but also the carrying capacity of the economy , while also having water purification capacity to accommodate a minimum of pollution .