南宁市区含水层地下水类型的变化分析

Analysis for underwater types variety in the aquifer,Nanning

城市的大规模建设引发城市地区地下水类型变化.地下水类型的变化一方面反映了城市工业化的进程及工业类型的布局,另一方面将影响城市的工农业的用水安全.以南宁市地下水的初始形成作为分析的背景值,对引起南宁市地下水类型变化的4个主要因素进行了讨论,并对南宁市数十年来的地下水类型进行了统计与分析,统计结果表明,南宁市区的地下水类型已从1983年的14种类型变为1990年的18种类型,与60年代单一的1型水相比,目前又增加7种主要的地下水类型.对地下水类型的变化规律的研究无疑对城市规划及城市用水具有重要的指导意义.

City construction bring about groundwater types variety in city. Groundwater types variety are not only reflecting processing and location of industry in city, but also affecting groundwater safety. This paper analyses background values for groundwater original chemical composes. The four main factors are analysed to bring about groundwater types variety. The statistic results indicate for groundwater documents in the decade, from 1983s to 1990s, groundwater types have upped to 18 types on the basis of 14 types. Compare with 1960s＇ only 1 type groundwater, at present have increased 7 groundwater types. Research for groundwater types variety will be very important, which can support the plan of making use of groundwater in city.