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峰丛洼地典型家庭水柜水量及水质的动态变化特征

发布时间:2018-07-13 14:16
【摘要】:峰丛洼地地下水埋深大,含水层结构复杂,水资源储存困难;水柜作为桂西北峰丛大石山地区解决农村饮水的有效手段,水柜的水量和水质影响着当地农村的经济和生态等多方面的效益。本文选取峰丛洼地典型的家庭水柜,分析不同条件下水柜水质特征、及某一典型家庭水柜水量和水质动态变化特征,可知:(1)同一形成条件下,SPC值与p H整体上呈负相关关系;(2)凹面型坡面中的水流中的SPC值大于凸面型;(3)岩溶泉水SPC较大、DO值较小、p H值符合饮用水标准,周围环境相对封闭,更适合直接引入供村民使用;(4)典型家庭水柜的用水量与降水量和气候因素密切相关,其范围为0.12~0.32 m~3/(人·d);(5)水柜的更替速度由降水量和降水频率决定;(6)水柜水质状况由降水过程、水资源径流过程、集流过程和储蓄利用过程决定。峰丛洼地典型家庭水柜的水量、水质的动态变化特征及其影响的探索,可为合理开发利用峰丛石山地区水资源、执行利国利民和精准扶贫政策提供科学依据。
[Abstract]:The groundwater in Fengcong depression is deep, the aquifer structure is complex, the storage of water resources is difficult, and the water cabinet is an effective means to solve the rural drinking water in the north and west of Guangxi. The quantity of water tank and water quality affect the local rural economy and ecological benefits. In this paper, a typical household water tank in the peak cluster depression is selected to analyze the water quality characteristics of the water tank under different conditions, as well as the dynamic change characteristics of the water quantity and water quality of a typical household water tank. The results are as follows: (1) under the same formation condition, there is a negative correlation between SPC value and pH, (2) the SPC value in concave slope is larger than that in convex type, (3) the SPC value of karst spring water is smaller than that of convex type, and the value of SPC value accords with the drinking water standard, and the surrounding environment is relatively closed. (4) the water consumption of typical household water tank is closely related to precipitation and climatic factors, and its range is 0.12 ~ 0.32 mm3 / (human d); (5) the turnover rate of water tank is determined by precipitation and precipitation frequency; (6) the water quality of water tank is determined by precipitation process. The process of runoff of water resources, the process of collecting flow and the process of saving and utilizing are decided. The exploration of the dynamic changes of water quantity and water quality of typical household water tank in Fengcong depression and its influence can provide a scientific basis for the rational development and utilization of water resources in Fengcaomishan area, the implementation of the policy of benefiting the country and the people and the precise poverty alleviation policy.
【作者单位】: 中国地质科学院岩溶地质研究所国土资源部/广西岩溶动力学重点实验室;联合国教科文组织国际岩溶研究中心;
【基金】:广西岩溶峰丛洼地水资源综合利用技术研究峰丛洼地岩溶水循环过程及“四水”转化规律研究(GXWS201401) 国家自然科学基金面上项目(41472239) 中国地质调查局项目(DD20160061) 国土资源部/广西壮族自治区岩溶动力学重点实验室开放课题/主任基金(KDL201401;KDL201505)
【分类号】:TU991.21;TV213.4


本文编号:2119659

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