摘要
TheverticaldistributionandmigrationofCu,Zn,Pb,andCdintwoforestsoilprofilesnearanindustrialemissionsourcewereinvestigatedusingahighresolutionsamplingmethodtogetherwithreferenceelementTi.One-metersoilprofilewassectionedhorizontallyat2cmintervalsinthefirst40cm,5cmintervalsinthenext40cm,and10cmintervalsinthelast20cm.Themigrationdistanceandrateofheavymetalsinthesoilprofileswerecalculatedaccordingtotheirrelativeconcentrationsintheprofiles,ascalibratedbythereferenceelementTi.Theenrichmentofheavymetalsappearedintheuppermostlayeroftheforestsoil,andthesoilheavymetalconcentrationsdecreaseddowntheprofileuntilreachingtheirbackgroundvalues.ThecalculatedaveragemigrationratesofCd,Cu,Pb,andZnwere0.70,0.33,0.37,and0.76cmyear-1,respectively,whichwerecomparabletoothermethods.Asimulationmodelwasproposed,whichcouldwelldescribethedistributionofCu,Zn,Pb,andCdinnaturalforestsoils.
出版日期
2008年03月13日(中国Betway体育网页登陆平台首次上网日期,不代表论文的发表时间)