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1、第8卷第3期2008年6月安全與環(huán)境學(xué)報(bào)JournalofSafetyandEnvironment、b1．8No．3Jun，2008metal．a(chǎn)lzmactivitiesandmicrobialpopulationinthesoil[J]．JournalD，SafetyandEnvironment(安全與環(huán)境學(xué)報(bào))。2006，6(6)：44—50．[22]LILianfang(李蓮芳)，ZENGXibo(曾希柏)。LIGuoxue(李國(guó)學(xué))，eta1．HeavymetalpoHufionofWenyURivers
2、edimentanditsriskas·㈣Ⅻnt[J]．A“口S。cie眥iaeCircuⅢt口n砌*(環(huán)境科學(xué)學(xué)報(bào))，2007．27(2)：289—297．Comparativestudyofheavymetalcontentsinsoilfromirrigatedareasofeastsuburb，BeijingSUNLeil。ZHAOYel，LIQim'91，LIUXi．tanl，WANGShui．fen92(1StateKeyLaboratoryofWaterEnvironmentSimulation，Sc
3、hoolofEnvironment，BeijingNormalUniversity，Bering1．00875，China；2CenterofAnalysisandTesting，BeringNormalUniversity，Beijing100875。China)Abstract：Basingontheanalysisoflanduseandremotesoiigeimageofirrigated8readistributedinBeijingeastsuburb，thispaperinvesti-gatesth
4、edistributioncharacteristicsofheavymetalinsoilfromsewage．mixedandclearwaterirrigationarea．TheresultshowsthatCo，Ni，MnandVcontaminationhasnotbeenobservedinbothtop—soilandsubsoilcomparedwiththebackgroundvalueinthestudyam．Cr．CuandZncontaminationhasbeenfoundintheto
5、psoilofsewageandmixedwaterirrigational"ea．Accordingtonationalsoilell·vironmentqualitystandard(GB15618一1995)，thesubjectofsoilfromthesewageandmixedwaterirrigationareakeepinnationalstall—dardI，andsomeindividualsamplingpointaleuPtothestandardlI．Itsuggeststhatthelo
6、ng—termsewageirrigationmayleadtotheinten·-sificafionofsoilenvironmentcontaminationrisk．ThemeancontentvalueofCr，CuandZnintopsoilofsewage"irrigationareaare84．20．25．67and105．20mg／kgrespectively。andarelligherthanthoseofsubsoilfromsewageirrigationareaandtopsoilfrom
7、mixedir-rigation8瑚．Furthermore．a(chǎn)significantcorrelationwasfoundbe·tweensoilorganicmattercontentandheavymetalaccumulationinsoil，andacorrelationbetweenCaC03contentandheavymetalaccu·mulationisconfirmed．Theseresultssuggestthatthesoilorganicmat—tel"andCaC03affectthe
8、immigrationofheavymetalsinsoil．ThemeancontentvalueofCo，Cr，Cu，Mn，Ni，V，ZninsedimentssampledfromChaobaiRiverare19．07，67．19，20．81。610．64，26．84。84．97，112．37ms／kgrespectively．Thecontentm
