鄱阳湖滨湖区浅层地下水镉元素分布特征及成因分析  

Cadmium distribution characteristics and causes of shallow groundwater in lakeside area of Poyang Lake

作　　者：钟秋娟 肖兴[2] 汪凡[2] 谢振东[2] ZHONG Qiu-Juan;XIAO Xing;WANG Fan;XIE Zhen-Dong(Jiangxi Geological Hazard Emergency Center, Jiangxi Nanchang 330025, China;Jiangxi Institute of Geological Survey, Jiangxi Nanchang 330030, China)

机构地区：[1]江西省地质灾害应急中心,江西南昌330025 [2]江西省地质调查研究院,江西南昌330030

出　　处：《上海国土资源》2017年第2期46-48,共3页Shanghai Land & Resources

基　　金：中国地质调查局地质调查项目"江西省鄱阳湖及周边经济区农业地质调查"

摘　　要：通过对鄱阳湖滨湖区浅层地下水1104个样品分析,查明浅层地下水中Cd元素的分布特征。结果显示鄱阳湖滨湖区浅层地下水中Cd元素含量在未检出~39.6μg/L之间,均值为0.14μg/L。浅层地下水Cd元素含量存在南高北低的现象,在北部德安—都昌一带存在Cd的低地球化学背景区,而在南部丰城—进贤—乐平一线呈现Cd的高地球化学背景带,此外沿赣江、信江和饶河河谷区以及五河入湖三角洲松散堆积物区出现了浅层地下水的Cd富集。鄱阳湖滨湖区Cd元素的富集与地质背景环境、Cd元素的元素习性以及工业废水的排放均有一定的关系。Through the Cd element analysis of1104samples of shallow groundwater in the lakeside area of Poyang Lake,to identify the distribution of Cd in shallow groundwater,results show that the Cd element content is between undetectableand39.6μg/L,with a mean of0.14μg/L.The content of Cd in shallow groundwater in the north is lower than in the south;in the northern Dean-Duchang area,a low geochemical background area exists,but in the south,the Fengcheng-Jinxian-Leping line exhibits a high Cd content.Furthermore,the groundwater enrichment of Cd along the Ganjiang River,XinjiangRiver,and the Rao River valley area and delta show that loose deposits from the five rivers are deposited into the lake.Thegeological background,Cd habits,and emissions of industrial waste water have a relationship with the phenomenon of Cdelement enrichment in the lakeside area of Poyang Lake.

关 键 词：水文地球化学 浅层地下水 镉元素 鄱阳湖滨湖区 

分 类 号：P641.3[天文地球—地质矿产勘探]