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珠江三角洲地区地下水铁的分布特征及其成因
引用本文:黄冠星 孙继朝 荆继红 汪,珊 杜海燕 刘景涛 陈,玺 张玉玺 狄效斌 支兵发.珠江三角洲地区地下水铁的分布特征及其成因[J].中国地质,2008,35(3):531-538.
作者姓名:黄冠星 孙继朝 荆继红 汪  珊 杜海燕 刘景涛 陈  玺 张玉玺 狄效斌 支兵发
作者单位:1. 中国地质科学院水文地质环境地质研究所,河北石家庄,050061
2. 广东省地质调查院,广东广州,510080
基金项目:中国地质调查局地质调查项目
摘    要:为了解珠江三角洲地区地下水中铁的含量及其成因,采集并分析了352组地下水样和12组地表水样。分析结果表明:珠江三角洲地区地下水铁含量为未检出~94.8mg/L,平均含量为1.46mg/L。该地区地下水铁含量的分布与其工业化程度及所处区域的补、径、排条件密切相关,尤其在平原区,地下水铁含量与部分地表河流的污染程度更是密切相关,随着远离污染的地表河流,地下水铁含量有明显减少的趋势。不同地区对其地下水铁含量起主导作用的因素也不相同,氧化还原条件是影响珠江三角洲地区地下水铁含量分布的主要因素之一,而酸碱条件和地面污染则只在局部地区对地下水铁含量的分布起主导作用。另外,含水层介质组分、径流条件、上覆土层性质等因素对珠江三角洲地区地下水铁含量也都起到了一定的作用。

关 键 词:珠江三角洲  地下水  铁含量  分布特征  成因

Distribution and origin of iron in groundwater of the Zhujiang delta
HUANG Guan-xing,SUN Ji-chao,JING Ji-hong,WANG Shan,DU Hai-yan,LIU Jing-tao,CHEN Xi,ZHANG Yu-xi,DI Xiao-bin,ZHI Bing-fa.Distribution and origin of iron in groundwater of the Zhujiang delta[J].Chinese Geology,2008,35(3):531-538.
Authors:HUANG Guan-xing  SUN Ji-chao  JING Ji-hong  WANG Shan  DU Hai-yan  LIU Jing-tao  CHEN Xi  ZHANG Yu-xi  DI Xiao-bin  ZHI Bing-fa
Abstract:In order to understand the content and origin of iron in groundwater of the Zhujiang delta, the authors took and analyzed 352 groups of groundwater samples and 12 groups of surface water samples. The results show that the iron content in groundwater of the Zhujiang delta range from undetected to 94.8 mg/L with an average of 1.46 mg/L. The distribution of iron content in groundwater of the area is closely related to the extent of industrialization and recharge, runoff, discharge conditions of the Zhujiang delta, especially in the plain area, where the content of iron in groundwater is more closely related to the pollution degree of rivers. The content of iron in groundwater decreased significantly far away from the polluted surface rivers. The factors that play a dominant role in iron content of groundwater are different in different areas of the Zhujiang delta. The redox condition is one of the main factors for affecting the distribution of iron content in groundwater in the Zhujiang delta, while the pH values and ground pollution only play a dominant role in the distribution of iron content in groundwater in some areas of the Zhujiang delta. In addition, such factors as the components of aquifer media, runoff conditions and characteristics of overlying soils all exert a certain effect on the iron content of groundwater in the Zhujiang delta.
Keywords:Zhujiang delta  groundwater  iron content  distribution characteristics  origin
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