上海市地下水的矿化度时空演化规律研究

A Study on the Spatial-temporal Evolution Law of the Salinity of Groundwater in Shanghai City

本文采用SPSS17.0软件分析了2001-2013年上海市地下水的矿化度,探讨了潜水层及第Ⅱ~Ⅴ承压含水层的矿化度时间演化趋势和垂直分布规律。研究发现：从时间演化总体趋势来看,潜水含水层、第二承压含水层和第四承压含水层的矿化度呈增加趋势,表明水质趋向盐化和恶化;其余各含水层矿化度呈降低趋势,表明水质趋向良性。从垂直方向分布情况来看,潜水含水层和第二、第五承压含水层的矿化度高于其他含水层,同时第二承压含水层的矿化度变化幅度显著。

This paper analyzed the salinity of groundwater in Shanghai City from 2001 to 2013 with SPSS17.0 software and explored the spatial-temporal evolution trend and vertical distribution law of salinity in the unconfined aquifer and from the second to the fifth confined aquifer. The results showed that in terms of time-space evolution trend, there was an increasing trend in the salinity in the unconfined aquifer, the second and the forth confined aquifer to indicate the salinization and deterioration of water. The salinity in other aquifers was decreasing to indicate the improvement of water. From the perspective of vertical distribution, the salinity in the unconfined aquifer, the second and the fifth aquifer were higher than others, meanwhile, there was a significant variation in the salinity of the second confined aquifer.