凡口铅锌矿湿地系统沉积物中重金属的分布王凡路

2003,12(3):[e-mail]30100024RGCHKBU-2072/01M1968*2003-05-06*1.5123252.5102753.TyphalatifoliaPbZnCuCdDTPA-ZnDTPA-Pb11~123PbZnCuCd1~3PbZnCuCd3pH(p0.05)pHX751A1672-2175200303-0292-04PbZnCdHgAs2080Typhalatifolia4[1]pH[2]97.8%Pb98.9%Zn99.1%Cu99.6%Cd3[3]pH20-5401457mm6tPbZnCuCdAsPbZn4111983DOI:10.16258/j.cnki.1674-5906.2003.03.01029329412320038295324PbZnCuCd[5][6]240~10cmPbZnCuCd10~20cm20~30cmPbZnCuCd[7]3pHPbZnCuCdpHDTPA-ZnDTPA-Pb7pH6~8ZnpH[8][1]./[J].199232190-194.[2]DUNBABINJSBROWMERKH.Potentialuseofconstructedwetlandsfortreatmentofindustrialwastewaterscontainingmetals[J].TheScienceoftheTotalEnvironment,1992,111:151-168.[3]LANCY.UseofcattailsintreatingwastewaterfromaPb/Znmine.EnvironmentalManagement,1992,16:75-80.[4]PAGEAL,MILLERRHKEENEYDR.MethodsofSoilAnalysis:Part2.ChemicalandMicrobiologicalProperties[M].2ndedition.Madison,Wisconsin,USA:ASA,SSSAPublication,1982:1159.[5]SKOUSENJ,SEXSTINEA,GARBUTT,etal.Acidminedrainagetreatmentwithwetlandsandanoxiclimestonedrains[A].In:KENTDM,ed.AppliedWetlandScienceandTechnology[M].BocaRaton,FL:LewisPubl.,1994:263-281.[6]AISLINGD,SULLIVANO,OLIVEM,etal.Wetlandforrehabilitationofmetalminewastes[J].BiologyandEnvironment,1999,99b(1):11-17.[7]HOWESBL,TEALJM.OxygenlossfromSpartinaalternifloraanditsrelationshiptosaltmarshoxygenbalance[J].Oecologia,1994,97:431-438.[8]JUSTINSHFW,ARMSTRONGW.Theanatomicalcharacteristicsofrootsandplantresponsetosoilflooding[J].NewPhytologist,1987,106:495-95.DistributionofheavymetalsinsedimentofFankouPb/ZnwetlandWANGFan-lu1,WURui-qin1,YANGBing2,YEZhi-hong2,31:EnvironmentalMonitorStation,ShaoguanCity,GuangdongProvince;2:SchoolofLifeScience,ZhongshanUniversity,Guangzhou,510275Abstract:DistributionsofPb,Zn,Cu,andCdinsedimentatFankouPb/ZnwetlanddominatedbyTyphalatifoliahavebeenstudied.TheconcentrationofDTPA-ZnwashigherthanDTPA-Pbinsediment.TheconcentrationsofPb,Zn,Cu,andCdinporewaterinspringweresignificantlyhigherthaninwinter.Fromcell2tocell4,concentrationsofPb,Zn,Cu,andCdinthetop10cmofsedimentwerehigherthaninthe10-20cmor20-30cmsediment.However,sedimentpHindifferentlayerswasnotsignificantlydifferent(p0.05),whichindicatethattheconcentrationsofmetalsandpHvaluesinsedimentdidnothaveaobviouscorrelation.Keywords:constructedwetland;heavymetal;porewater;sediment