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ID:46535169
大小:1.65 MB
页数:9页
时间:2019-11-25
《贾鲁河中牟段河岸带地下水流及水质特征研究》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、2015年6月,第21卷,第2期,234—242页高校地质学报June2015,Vo1.21,No.2,PP.234—242GeologicalJournalofChinaUniversitiesDOI:10.16108/j.issn1006-7493.2015018贾鲁河中牟段河岸带地下水流及水质特征研究郑玉虎,张幼宽,梁修雨1.南京大学地球科学与工程学院,南京210023;2.南京大学水科学研究中心,南京210093摘要:该文以河南省贾鲁河中牟段为研究区,探究贾鲁河与河岸带浅层地下水的补排关系以及河水对浅层地下水的影响。通过野外地质调查、水文地质试验、水位
2、监测及水质检测,分析河岸带地表水与地下水的补排关系及污染特征。结果表明,受中牟县抽取地下水的影响,该河段周围浅层地下水位低于河水位,河流补给地下水,平均单宽补给量为2.04m·d~;河水中NH和COD污染较为严重,地下水中“三氮”均超标,其中NO和NH污染严重;河水NH一N浓度远高于地下水,接受河流补给的地下水NH污染严重;因硝化作用,远离河流地下水NH,一N浓度逐渐降低,而NO一N浓度逐渐升高。关键词:贾鲁河;河岸带地下水;NH。污染;NO,污染中图分类号:P641.2文献标识码:A文章编号:1006—7493(2015)02—0234—09AStudyof
3、GroundwaterFlowandWaterQualityCharacteristicsintheRiparianZoneofJialuRivernearZhongmuZHENGYuhu一,ZHANGYoukuan,LIANGXiuyu1.SchoolofEachSciencesandEngineering,NanjingUniversity,Nanjing210023,China;2.CenterforHydrosciencesResearch,NanjingUniversity,Nanjing210093,ChinaAbstract:Inthisstud
4、y,fieldgeologicalinvestigations,hydrogeologicaltests,waterlevelmonitoring,andwaterqualityanalyseswereconductedtoinvestigatetherechargeanddischargebetweentheseriouslypollutedJialuRiverandthenearbygroundwaterinHenanprovince.Theresultsindicatethattheriverstagewashigherthanthegroundwate
5、rlevelbecauseofnearbygroundwaterpumping,causingtherivertorechargegroundwaterwithanaveragewaterfluxperunitwidthof2.04m·d~.TheNH3andCODpollutionintheriverwasseriousandtheconcentrationsofNH3-N,N02-N,andNO3一Ningroundwaterwereallhigherthanthestandards.TheNO2andNH3pollutionwasespeciallyse
6、rious;theNH3-NconcentrationintheriverwasmuchhigherthanthatingroundwaterandtheNH3pollutioningroundwaterneartheriverwasmoreseriousasaresultoftheriverrecharge,butwasgraduallyreducedawayfromtheriverduetonitrificationandadsorption.TheNO3-Nconcentrationintheriverwaslowerthanthatinthegroun
7、dwaterandtheNO3一Nconcentrationinthegroundwatergraduallyincreasesawayfromtheriverduetonitrificationandinfihrationofthenitrogenfertilizerappliedattheland—surface.Keywords:JialuRiver;riparianzonegroundwater;ammoniapollution;nitratepollutionCorresp0ndingauthor:ZHANGYoukuan,Professor;E—m
8、ail:ykzhang@nju.edu
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