水文地质工程地质2011，Vol.38Issue(1)：16-21,6.
珠江三角洲浅层地下水pH值的分布及成因浅析
Characteristics and preliminary analyses of the formation of pH in shallow groundwater in the Pearl River delta
摘要
Abstract
More than 2,000 groundwater samples were detected in situ for pH in the Pearl River Delta.The results show that water acidification is the most prominent problem in the groundwater environment.Acidic groundwater accounts for 76.3％ of the total area.Distribution of pH in the shallow groundwater is of obvious regional characteristics.In the hilly areas, pH in groundwater ranges mostly from 5.6 to 6.4, while pH varies mainly between 6.4 and 7.2 in the plain regions.Due to the influence of acid rain, pH of groundwater is slightly lower in wet season than in dry season.It is considered that acid rain and medium buffer of unsaturated zone play an important role in the lower pH value in groundwater in the hilly areas.In the plain areas, the acid rainfall infiltration coefficient becomes lower, while rivers and seawater tide are the dominant factors causing higher pH values of the groundwater.关键词
珠江三角洲/浅层地下水/pH 值分类
天文与地球科学引用本文复制引用
张玉玺,孙继朝,陈玺,黄冠星,荆继红,刘景涛,向小平,王金翠,支兵发..珠江三角洲浅层地下水pH值的分布及成因浅析[J].水文地质工程地质,2011,38(1):16-21,6.基金项目
珠江三角洲地下水污染调查评价专题研究(1212010534807) （1212010534807）
