城镇化对永城市浅层地下水水质的影响

城镇化对很多地区的地下水水质造成了严重破坏,研究其破坏机制及其主要因素可为城市地下水资源开发、保护和修复提供参考.以河南省永城市为例,在对比分析实地调查采样数据和历史数据的基础上,运用多种方法综合研究城镇化对浅层地下水质的破坏机制及其主要影响因素.结果表明:随着城镇化的发展,永城市浅层地下水水化学类型趋向复杂化;城镇化...

Influence of Urbanization on the Shallow Groundwater Quality of Yongcheng City

Urbanization has caused serious damage to the groundwater quality in many areas.The study on the da-mage mechanism and its main factors can provide some references for the development,protection and restoration of urban groundwater resources.Taking Yongcheng city of Henan Province as an example,based on the comparative analysis of field survey sampling data and historical data,this paper uses a variety of methods to comprehensively study the mechanism and main influencing factors of urbanization on shallow groundwater quality.The results show that with the development of urbanization,the chemical composition of shallow groundwater has become more complex,which is mainly caused by the increase of NO-3 from agricultural activities in the early stage of urbanization and by the one of SO42- from industrial and mining waste water in the rapid development stage.Therefore,for the shallow groundwater,different stages show different characteristics resulting from different factors;different mea-sures on prevention and control should be taken according to the urbanization development.