环鄱阳湖浅层地下水水化学特征的时空变化  

Spatial and temporal variation of shallow groundwater chemical characteristics around Poyang Lake

作　　者：胡春华[1,2] 童乐[1,2] 万齐远[1,2] 李美停[1,2] 付春毅[1,2] 周文斌[1,2] 

机构地区：[1]南昌大学鄱阳湖环境与资源利用教育部重点实验室,南昌330029 [2]南昌大学环境与化学工程学院,南昌330031

出　　处：《环境化学》2013年第6期974-979,共6页Environmental Chemistry

基　　金：国家水体污染控制与治理科技重大专项(2008zx07526-008-03);国际科技合作资助项目(2006DFB91920);"十一五"国家科技支撑计划重点项目(2007BAB23CO2);国家自然科学基金(40672159;41040032;41261097);鄱阳湖环境与资源利用重点实验室支持项目(13005879;13005870);中国经济改革实施技术援助项目(支援期TCC5jxspyhzxh09-03)资助

摘　　要：系统采集了鄱阳湖周边地下水,分析测定各单元的水化学参数.结果表明,环鄱阳湖浅层地下水整体偏酸性,呈低矿化度,局部地区出现微咸水.环鄱阳湖浅层地下水丰、枯水期的优势阴离子为HCO3-,阳离子为Ca2+和Mg2+.运用SPSS软件做离子相关性分析,各离子间均呈正相关性,说明可能有相同的来源.地下水的水化学类型整体表现为HCO3-Ca-Mg型,丰水期相对于枯水期出现较多的NO3-型和SO24-型水体,局部区域优势阴离子改变,出现了NO3-型、Cl-型地下水,可能受到农业化肥和工业废水排放的影响.整体上地下水的水化学类型受当地岩石类型的影响比较大,个别地区受人为的活动干扰较为强烈.The hydro-chemical parameters in the shallow groundwater around Poyang Lake were studied.The results showed that the shallow ground waters around Poyang Lake were of weak acid and low salinity,and part of the area had slight saline water.HCO-3 was the predominant anion,while Ca2＋ and Mg2＋ were the predominant cations.SPSS software′s correlation analysis showed that the ions had a positive correlation with each other,which indicated that the ions may have the same source.The groundwater belonged to HCO3-Ca-Mg type in the study area.NO-3-type and SO2-4-type water appeared more in the wet season compared to the dry season.And the dominant anion changed in some areas,and the NO-3-type and Cl——type water appeared,which may be affected by the agricultural fertilizer and industrial wastewater discharge.The chemical types of the shallow groundwater were influenced by local geology and rock types mostly.However,individual regions were strongly affected by human activities.

关 键 词：水化学类型 季节变化 浅层地下水 环鄱阳湖 

分 类 号：X131.2[环境科学与工程—环境科学] X523