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大连市的6座大型水库均为大连市重要的饮用水源地,保护好大型水库水质安全具有重要的意义.本文通过对2006-2011年的水质监测数据进行分析评价,得出近年来大连市6座大型水库的富营养化现状,并分析水库产生富营养化的因素,提出预防水库富营养化的相应措施. 相似文献
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以2013年大连市22处水库型水源地水质数据的监测结果为依据,对大连市水库型水源地进行水质达标评价,并对造成水库污染的污染物定性进行分析,从而对大连市水库型水源地的水质达标状况进行全面了解,为水源地的进行进一步保护规划提供了基础条件。 相似文献
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该文对东莞市主要的七大水库水体富营养化状况进行分析评价,近年的水质监测资料分析评价结果表明:参与评价的7座大水库水质总体较好,但不同程度地有富营养化趋势。其中有2座水库已经呈现出轻度富营养状态,4座水库属于中营养状态且富营养状态趋势明显。水库的富营养化影响其使用功能,为了保护水资源地,有必要建立一套完善的水库水质保护体系,以有效防止水质污染和水体富营养化,保护水库水质。 相似文献
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一、水库自然环境与污染源概况潘家口、大黑汀水库承纳着滦河主干流及柳河、青河、瀑河等水体,地处燕山狭谷,库呈狭长状。库区一带有铁、铜、锌、镍、金、锰等矿。年均气温为10.2℃,最高为39.4℃,最低为-25.0℃,年降雨量为650mm 左右,60%集中于7、8月。两库周边点污染源不多,主要有几家选铁厂排放尾矿、废水。年排污量达260万吨 相似文献
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应用特征法、参数法、营养状态指数法(TSI)和浮游植物生态学评价方法,对江门市4宗大型水库的富营养化水平进行评价.结果表明:锦江水库为贫-中营养型水库,大隆洞水库和大沙河为中-富营养型水库,但大沙河水库已接近富营养水平,镇海水库则是富营养型水库. 相似文献
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该文根据2000年-2002年的水质监测结果,对山美水库水质现状作出评价,同时对其富营养化进行预测,并提出了水质保护措施。 相似文献
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大连市的城市生产、生活用水均由大连市的大、中型水库承担,水库饮用水水源地的安全现状尤为重要,本文以2010年的资料对大连市的水库饮用水水源地安全从水质、水量两个方面进行现状评价。分析水资源保护存在的问题,并提出相应的保护措施。 相似文献
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大连市引碧玉皇庙隧洞工程主要采用现场施工管理方式。此方式为保证工程的进度、质量、安全、经济效益起了重要作用,也为施工企业在大型基建项目中采用多家分包、统一管理的方式提供了经验。 相似文献
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城市总体规划水资源论证是规划水资源论证的重要工作对象和内容,对保障城市总体规划的有效实施具有重要意义.从当前开展城市总体规划水资源论证工作遇到的主要问题入手,对城市总体规划水资源论证的介入时机、工作定位、主要内容以及技术路线等关键环节进行了分析,提出了推进城市总体规划水资源论证工作的对策与措施. 相似文献
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A study was made on the water quality of the rivers in Mongolia over the years 1949-1990 for the three river basins in the country. In most of the 72 monitoring stations, the water quality is governed by geological and hydrological characteristics; bicarbonate and calcium are the most abundant major ions. No significant trends were observed between river discharges and total dissolved solids contents. The sediment yields (expressed in the run-off of total suspended solids, TSS) were always low, viz. between 0.02 and 20 x 10(3) kg TSS/km2 yr. In general, the rivers in Mongolia showed low pollution levels for organic pollution, phosphorus, nitrogen, etc., and no time trends were observed in this respect. This does not hold, however, for the northern Tul River, where especially high BOD and ammonium values were found. This can probably be ascribed to the presence of industries and larger cities, as well as agricultural practices. The rivers in Mongolia can generally be classified as "clean" or "of acceptable quality". In contrast, the Tuul River was shown to be "moderately polluted", with a deteriorating trend in water quality over recent years. 相似文献
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引碧入连供水工程,是大连市重要水源工程。通过对引碧入连供水工程大沙河例虹吸基础处理的研究,首次在辽宁省水利系统成功地应用振冲碎石桩来解决基础液化问题.从而为今后类似的工程提供了宝贵的经验。 相似文献
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乔光建 《水科学与工程技术》2003,(1):38-39
通过对朱庄水库水体中氨氮、亚硝酸盐氮、硝酸盐氮和高锰酸盐指数变化规律分析,说明影响水库水质的主要因素及水质变化特点,为水库水质站网规划中监测点的布设和水库水质的代表性问题提供参考依据。 相似文献
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Water quality assessment of a recently refilled reservoir: The case of Bütgenbach Reservoir, Belgium
Anna Lourantou Jean-Pierre Thomé Anne Goffart 《Lakes & Reservoirs: Research and Management》2007,12(4):261-274
Bütgenbach Reservoir is situated in the High Ardennes plateau in eastern Belgium (50°25′N; 6°13′E). It is used principally for flood control and for production of hydroelectric energy. It has been subjected to a previous series of studies because of its eutrophication problems and their impacts on the local economy. Bütgenbach Reservoir was emptied during spring 2004 for dam restoration, being refilled in mid‐September of the same year. Selected physicochemical and biological parameters (temperature, dissolved oxygen, pH, inorganic and organic nutrients, chlorophyll‐a) were measured fortnightly during the lake's productive season (mid‐April to mid‐October 2005) at three sampling sites throughout the water column. The water quality conditions after refilling of the lake were compared to previous studies accomplished at the same sampling sites (prior to emptying the lake). The actual trophic status was mesotrophic to eutrophic, based on the combination of total phosphorous and chlorophyll‐a concentrations, as well as water transparency. Bütgenbach Reservoir generally exhibits good water quality, based on the French water quality system SEQ‐eau. A longitudinal decrease in water quality was observed from upstream to downstream, because mainly of the differences in lake bottom morphology and water residence time, and their impacts on nutrient distribution in the lake. 相似文献