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2、ractionrelations,血erelationbet、veenV撕ouSheavymetalelement’sarldthesoil—cropssystem,therelationbetv舊enthehea、,)rmetalreciprocityalldtllemigrationtransf0加1ation,aswellasmepotentialriskofhe哪rmetalinh啪a11hair.ThemUtextisdiVidedimo5parts:PaItI:ismailllybesedonthethe蚴usquoaboutmeregularV
3、alueoftheperson城rheavymetaLl鋤ditsinfluencalf-actorsathomeandabroad,pointingouttllatmeexistenceofproblemsaIld丘l:cureresearch仃elndS.PartII:suInmarizesthenatIlralgeneralsituation,iIlcluding也eareastudy,chemica重fer
4、ilizerriVeressentialfeatllresandthem勾orpollutionincidentsi11nle11istory.
5、PartIII:mainlyintroducesthep咖ciples,memods,sampleprocessingandpr印arationofsoilaIldⅥ,heat,aIldalsomestepsofexperimentalmetllods.PanⅣ:111eheavym削comentofsoilandwheatwaLsaIlalysed.W.ehaVegottheKaifengCi夠people’shea、,),metalreferencalcoments;OnthebaSisofaIlalysisofmepeople’shea、,),meta
6、lsint11econnDlare2LsaIldaIlalysisofdi虢rentpopulationsofpeople’shairhea、侈metalcontents,thepapercomparestherefIerencevalues.Therelations
7、lipbe鉚eenhairhea、,),metalcontentaIldsoil-cropsystemwasaIlalysed.0lIlthebasis,apreliminarystudyoftlleheaVymetalsmi鯽ioninthesoil-crop—peoplesystemhaV
8、ebeendone.PanV:throu曲research,tllefollowingbaSicconclusionshavebeenmade:(1)Becauseofalong·te肌useofchemicalfertilizersriVerofsewagei耐gationonthefI枷laIlds,therearedifrerentleVelsofhea、7metalpollutioninthesoilandsewageVirrigationareaSofwheat.PollutionofsoilaIldi仃igationdistrictVillage
9、of、vheatbytheeXtemofheaVymetalpollutionareconsistent,DisthemostpollutedVillage,itsinte伊atedpollmionindexreached3.22a11d3.47,Bfollo、ⅣedbytheVillage,AVillageaIldVillageClesspollution.(2)T11ecomentsofhairhea呵metalinsewage砌gationareaSaresigIliflcantlyhigherthaIlthatofmecontr01areas,aIl
10、dtlleaveragecomentsofCu,Zn