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Characteristics of groundwater and urban emergency water sources optimazation in Luoyang,China 
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下载免费PDF全文 The construction of emergency water sources is the material basis for ensuring urban water safety, and it is also an inherent requirement for maintaining social stability and development. The hydrogeological characteristics of groundwater in Luoyang City from the aspects of the division of groundwater aquifer groups, water yield property and groundwater dynamics were described in this paper. Two emergency water sources were selected on basis of comprehensively considering groundwater resources and ecological environmental effects, groundwater quality and exploitation technology, etc. Then it further analysed the aquifer types, water yield properties and groundwater recharge, runoff and discharge conditions of the two emergency water sources, and evaluate the groundwater resources quantity of the water sources. The results are that the shallow underground aquifer in Luoyang City is thick, coarse, and stable in lithology and thickness. The two water sources enjoy good exploitation potential and can be used as backup water sources to supply water in the event of a water source crisis. 相似文献
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牛栏江—滇池补水工程是滇池流域及周边地区的水资源综合利用工程,是增加滇池生态环境水量,改善滇池水资源质量的重要工程,对于保障现代新昆明建设和云南省经济社会可持续发展具有重大战略意义。然而近年的监测结果表明,牛栏江流域水资源质量有下降趋势。在以往的研究中曾提出面源污染是主要污染源。通过研究,发现牛栏江水污染物以总磷(TP)为主,且主要集中在七星桥断面以上;总磷(TP)污染主要来自于工业排放。并据此提出水污染治理的水资源保护对策。水环境治理措施和水质监测结果验证了结果的可靠性。 相似文献
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建立城市应急地下水源地,有利于提高应对水资源危机事件的供水保障能力。本文对湘潭市河西应急地下水源地的水文地质条件进行了详细的研究,认为该水源地由白垩系罗镜滩组(K2lj)灰质砾岩含水层构成,面积较大,厚度稳定,岩溶发育,水量丰富,水质优良,可开采量达78486 m3/d,且稳定可靠。针对2020年规划的湘潭市主城区及九华经开区的146万人口,无论是20 L/人·天还是50 L/人·天标准下的基本饮用水应急需求,均有保障,建议将应急水源地建设纳入城市基础设施建设和水资源开发规划之中,充分保证湘潭市区的供水安全。 相似文献
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近年来安徽省采取实地调查、资料研编、水量的估算和推算等方法,进行了全省17个重要城市地下水应急供水水源地的调查评价研究工作。在深入分析全省水文地质条件、了解地下水资源的分布规律和开发利用现状、摸清重要城市地下水的赋存条件和富水地带及水源地开采潜力的基础上,提出了地下水应急供水水源地的选择原则、开发利用程序及保护措施;初步选择出远景地下水应急水源地37个,评价总应急供水量116.7~145.2×104m3/d,可供2 224~2 884万人基本生活使用和5 685~7 060万人维持生活使用,为全省各重要城市应急供水机制建设提供可靠的地下水资源保障。 相似文献
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本文在分析凤翔县水资源利用现状的基础上.针对地表水蓄、提和机井三大水源工程的开发利用程度,结合全县工农业和城乡生活用水的规划布局,提出了在重点解决水源工程建设后.应优先发挥地表水灌溉主导作用.实施两水并用供给城乡生活用水的持续发展思路,同时提出了以节水为主的调节对策,对凤翔县的水资源合理利用具有指导意义. 相似文献
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以最新水资源评价成果为依据,阐述了山东省地下水资源状况、重要水源地的分布、开发利用潜力及地下水独特的优越性,强调了合理开发利用与保护地下水资源对山东省经济发展的重要性。认为地下水过量开采或开采程度过低,容易引起超采漏斗区、地面塌陷、沉降、裂缝、海水倒灌以及土壤盐渍化、渍涝等一系列生态环境问题,结合山东实际情况提出促进地下水利用良性循环的对策。 相似文献
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Kathleen M. Bower 《Environmental Earth Sciences》2014,71(1):107-123
Costa Rica is a developing country whose citizens pride themselves on care for the environment. Environmental care is only slowly spreading to include safe and reliable water supplies. Plentiful water resources are used for energy production, industry, municipal water supply, and agriculture. The amount and quality of water resources must be understood and protected for future sustainable use. Based on interviews and conversations, some Costarricense are aware of the need for protection of natural water resources through preservation of forests; other steps toward sustainable water use are not universally valued. Streams are not the preferred source of domestic water supply due to potential water contamination; mostly from untreated sewage, sediment and agricultural chemicals. Quantity and quality of ground water supplies, the current main source of domestic water, are being investigated by scientists of Costa Rica. While 99 % of the population has access to a known supply of domestic water, only 82 % of the population has consistent access to potable drinking water. The potable water supply is smaller in rural areas. Three percent of sewage in Costa Rica is treated before release to the environment. The Río Tárcoles water basin, underlying the largest urban area of Costa Rica, is probably the most polluted in Central America. More is spent for treatment of water-borne diseases than on water supply and sewage treatment. Other potential sources of water contamination are examined. 相似文献
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本文通过怀柔应急备用地下水源地水文地质条件分析和应急开采两年地下水位动态监测,运用数值模拟模型对水源地三种续采方案开采年限进行了预报：水源地分别以1．2×10^8m^3／a、0．8×10^8m^3／a和0．4×10^8m^3／a的开采量续采,续采年限分别为1年-2年和4年。 相似文献
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以织金县珠藏向斜北段储水构造为例,依据混合整数线性规划和多目标线性规划原理,从保障应急水资源供给的角度构建了不同干旱条件下地下水资源多目标应急配置模型（E-MIP）,并提出了2010-2030年的织金县城区地下水资源应急配置方案,结果表明:（1）珠藏背斜北部储水构造中裂隙-溶洞水的出露方式以地下河集中排泄为主,平均流量为62.04 m3·s-1,基岩-松散岩类孔隙泉则以分散排泄为主,平均流量仅2.14 m3·s-1;（2）干旱程度的加深不单纯限制了可利用水资源量,也直接刺激了用水效率和社会经济效益的提升,2010-2030年期间的织金县重度干旱缺水率比轻度干旱低21.25%,但其社会经济效益却增加了5.84倍;（3）应急地下水资源配置原则是优先保障居民生活用水需求,其次依据用水效率和权重次序对盈余地下水资源量进行产业化分配。进一步推算出了2020年、2025年织金县城区不同干旱状态下水资源应急配置方案。 相似文献
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The increases in population and building density that occur as predominantly rural catchment areas become progressively urbanised can have a far-reaching effect on the hydrological cycle, and therefore on both the quantity and quality of water resources. The success of management strategies intended to alleviate the flooding problems and to prevent the degradation of water quality within and downstream of the urban area depends upon a thorough understanding of the sources of urban runoff pollution and the mechanisms by which pollutants are transported to watercourses. Particular care is necessary to ensure that any measures taken to mitigate the adverse effects of either flooding or pollution do not conflict with others in the same overall stormwater management plan. 相似文献
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在对国内外水资源开发利用研究进行述评的基础上,分析了咸阳市城乡给排水现状,提出咸阳市在城乡给排水现状中存在供水管网老化、地下水超采、城市污水处理率低等问题.通过对水资源的需求预测来引导城乡给排水设施的统筹规划利用,并确定了利用的重点,提出成阳市城乡给排水设施的统筹规划利用应充分发挥城镇的示范带动作用,积极完善各项法规与... 相似文献
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寻找地下水应急水源地、建立应急供水机制,是城市发生日常供水障碍时保障居民用水安全、维护社会稳定的重要措施。通过分析常德市规划区水文地质条件,圈定了5个地下水应急水源地,总结了同类型城市地下水应急水源地的选址原则,并从水量、水质、开采能力3个方面对水源地进行了可行性分析。结合现有城市供水管网及地下水开采井保留情况,分别考虑了人均用水量最低标准20 L/d和一般标准50 L/d两种状态下的应急供水方案。应急供水每人20 L/d状态下,保留井的现有供水能力可以满足应急供水需求,而应急供水每人50 L/d状态下,河洑水源地和芦荻山水源地保留井的现有供水能力不足,建议增加开采井以满足应急供水需求。 相似文献