城市化影响地下水水质的正负效应

以石家庄市为例, 通过城市化水平和地下水污染态势的定量计算、分析, 对城市化影响地下水水质的机理及其正负效应进行了探讨.结果表明: 石家庄城市化发展处于初级阶段; 城市化影响地下水水质有正负两方面的效应, 城市化水平的提高, 有助于改善地下水水质, 但却易于加剧地下水盐污染.本研究为以地下水作为主要、甚至唯一供水水源城市的可持续发展提供了一种理论和根本途径. 

Positive and Negative Effects of Urbanization on Groundwater Quality

This paper discusses the impact mechanisms and positive-negative effects of urbanization on groundwater quality based on a three-year study in Shijiazhuang by quantitative calculation and analysis of urbanization level and groundwater pollution. The results show that growth of urbanization is helpful to improve the groundwater quality, but may easily result in salt pollution. It puts forward a kind of theory and a radical way of sustainable development for those cities, dependent on groundwater for their main, or even all, water supply.