【摘要】：峰叢洼地地下水埋深大,含水層結(jié)構(gòu)復(fù)雜,水資源儲存困難;水柜作為桂西北峰叢大石山地區(qū)解決農(nóng)村飲水的有效手段,水柜的水量和水質(zhì)影響著當?shù)剞r(nóng)村的經(jīng)濟和生態(tài)等多方面的效益。本文選取峰叢洼地典型的家庭水柜,分析不同條件下水柜水質(zhì)特征、及某一典型家庭水柜水量和水質(zhì)動態(tài)變化特征,可知:(1)同一形成條件下,SPC值與p H整體上呈負相關(guān)關(guān)系;(2)凹面型坡面中的水流中的SPC值大于凸面型;(3)巖溶泉水SPC較大、DO值較小、p H值符合飲用水標準,周圍環(huán)境相對封閉,更適合直接引入供村民使用;(4)典型家庭水柜的用水量與降水量和氣候因素密切相關(guān),其范圍為0.12~0.32 m~3/(人·d);(5)水柜的更替速度由降水量和降水頻率決定;(6)水柜水質(zhì)狀況由降水過程、水資源徑流過程、集流過程和儲蓄利用過程決定。峰叢洼地典型家庭水柜的水量、水質(zhì)的動態(tài)變化特征及其影響的探索,可為合理開發(fā)利用峰叢石山地區(qū)水資源、執(zhí)行利國利民和精準扶貧政策提供科學(xué)依據(jù)。
[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.
【作者單位】： 中國地質(zhì)科學(xué)院巖溶地質(zhì)研究所國土資源部/廣西巖溶動力學(xué)重點實驗室;聯(lián)合國教科文組織國際巖溶研究中心;
【基金】：廣西巖溶峰叢洼地水資源綜合利用技術(shù)研究峰叢洼地巖溶水循環(huán)過程及“四水”轉(zhuǎn)化規(guī)律研究(GXWS201401) 國家自然科學(xué)基金面上項目(41472239) 中國地質(zhì)調(diào)查局項目(DD20160061) 國土資源部/廣西壯族自治區(qū)巖溶動力學(xué)重點實驗室開放課題/主任基金(KDL201401;KDL201505)
【分類號】：TU991.21;TV213.4
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本文編號：2119659