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《黃土高原殘塬溝壑區(qū)坡耕地土壤重金屬分布特征與潛在生態(tài)風(fēng)險評估》由會員上傳分享，免費(fèi)在線閱讀，更多相關(guān)內(nèi)容在行業(yè)資料-天天文庫。
1、黃土高原殘塬溝壑區(qū)坡耕地土壤重金屬分布特征與潛在生態(tài)風(fēng)險評估AdvancesinEnvironmentalProtection環(huán)境保護(hù)前沿,208><#004699'>14,4,203-2<#004699'>10PublishedOnlineDecember20<#004699'>14inHans.//.hanspub.org/journal/aep//dx.doi.org/<#004699'>10.<#004699'>12677/aep.20<#004699'>14.46028203DistributionCharacteristicandAssessmentonthePo
2、tentialEcologicalRiskofHeavyMetalinSlopeFarmlandSoilontheLoessGullied-HillyAreaYuhuaWang<#004699'>1*,YimingWang2,FaqiWu3,YubinZhang4#<#004699'>1LiaoyuanEnvironmentalProtectionBureauofJilinProvince,Liaoyuan2PlantQuarantineandProtectiveStationinGongzhuling,Gongzhuling3CollegeofResourcesandEnv
3、ironment,NorthwestA&FUniversity,Yangling4CollegeofPlantScience,JilinUniversity,ChangchunEmail:#ybzhang@jlu.edu.cnReceived:Sep.28th,20<#004699'>14;revised:Oct.24th,20<#004699'>14;accepted:Nov.3rd,20<#004699'>14Copyright??20<#004699'>14byauthorsandHansPublishersInc.Thisworkislicensedunder
4、theCreativeCommonsAttributionInternationalLicense(CCBY).//creativecommons.org/licenses/by/4.0/AbstractIntheloessgullied-hillyareaontheLoessPlateau,thedistributionoftheheavymetalsincludingHg,As,Cu,Cr,ZnandNiinthetopsoilofslopefarmlandwasstudied,whichwascomprisedofsixslopegradients.Meansofhea
5、vymetalsinthesoilscollectedfromsixslopefarmlandwerecom-paredwiththebackgroundvalues(BV)ofsoilheavymetalsintheloessalsoil.TheresultsshowedthattheaveragecontentsofCuandZninthesamplesoilswerehigherthantheBV,andthecontentofCuonlyreachedthethirdstandardoftheEnvironmentalQualityStandardsforsoilsi
6、nChina(GB<#004699'>15<#004699'>168-<#004699'>1995)andwasgreaterthanthecriticalconcentrationas<#004699'>100mg/kgtocausecropfailin<#004699'>10%,whilethecontentsofHg,As,Cr,andZnallreachedthefirststandardofGB<#004699'>15<#004699'>168-<#004699'>1995.ThecontentsofHgandZnwouldincreasewiththeincrea
7、singofslopegradientandotherheavymetalsdidnotshowregularlychanging.CorrelationanalysisindicatedthattherelationbetweenHgandCuwashighlysignificantnegativecorrelation.ByusingtheH??kansonmethodofpotentialecolog-icalriskassessment,theCd(thedegreeofcontaminatio
