摘要
通过研究阜阳浅层地下水中"三氮"污染情况、分布特征,分析揭示了污染源及影响因素。结果表明,研究区近几年浅层地下水中"三氮"浓度有逐年增大趋势,受季节的影响明显,且"三氮"浓度随采样深度增大而减小。化肥厂废水排放、农业含氮有机肥料的使用和流失、动物粪肥是该区"三氮"污染的主要来源。此外,包气带厚度、pH、DO、Fe^(2+)等水文地质条件因素影响"三氮"的浓度及相互转化。
By studying the pollution situation and distribution characteristics of"three nitrogen"in the shallow groundwater of Fuyang,the pollution sources and influencing factors are analyzed and revealed,indicating that the concentration of"three nitrogen"in the shallow groundwater in the study area tends to increase year by year in recent years,which is obviously affected by the seasons,and the concentration of"three nitrogen"decreases with the increase of sampling depth.Sewage discharge from chemical fertilizer plants,use and loss of nitrogencontaining organic fertilizers in agriculture,and animal manure are the main sources of nitrogen pollution in the area.In addition,hydrogeological factors such as the thickness,pH,DO and Fe2+of the aerated zone influence the concentration and mutual transformation of"three nitrogen".
作者
刘建奎
杨章贤
马雷
王龙平
LIU Jian-kui;YANG Zhang-xian;MA Lei;WANG Long-ping(Geo-environment Monitoring Station of Anhui Province,Hefei,Anhui 230001,China;Hefei University of Technology,Hefei,Anhui 230002,China)
出处
《安徽地质》
2018年第2期123-126,共4页
Geology of Anhui
基金
安徽省国土资源科技项目资助(2016-K-11)
关键词
浅层地下水
三氮
污染特征
影响因素
shallow groundwater
three nitrogen
pollution characteristics
influencing factors
