济宁市稻田土壤重金属污染评价

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中图分类号X825文献标识码A文章编号 0517-6611（2025）18-0048-04doi：10.3969/j.issn.0517-6611.2025.18.012

Evaluation ofHeavy Metal Pollution in Paddy Soils in Jining City

CHENGBing，QIAOXiaolin，WUn-chai（JngAgoTechEtesionCenter，Jiing，Shandong272;.YutaiCotyAiculture and Rural Bureau，Jining，Shandong 272399）

AbstractObective]Toanalyseandevaluatethesiuationofhavymetalpltionofthepaddysoils.Method]Soilsamplesof ifelds were collected from Jining.pH and content of Cd，Hg，As，Cr，Pb，Zn and Cu in soils were determined.The results were analyzed by Excel and SPSS，andstatusofliasatedynglefctlidetod，mempresivedeeda son potential ecological risk index method.[Result]The average content of Cd，Hg，As，Cr，Pb，Zn and Cu in the paddy soils were O.13，0.08， 10.64，77.27，24.73，82.80 and 33.41mg/kg ，respectively.Compared with soil background values of this area in the past 2O years，Cd，Hg，As， Cr，Pb，Zn and Cu appeared mild accumulation.Geo-accumulation index indicated that Cd，As，Hg，Pb，Cr and Cu kept mild，medium polltion and Zn kept slight，medium pollution in 2.8% of samples，while remaining non-polution in others.According to Chinese National Soil EnvironmentQualityStadardG5618-018，tecontetofAsof4sampspontsecdedteiskcotrolvauebsallagin，tglefac torpolutionindexof itwas morethan1，andthisindicatedsoilskeptslightlypolluedbyAs.Thesingle-factorpolutionidexof Cd，Hg，Cr Pb，CuadZninallsplingsidAsinmaigsampiiaslsstan1tisiicatedhatsolsinoespodngling sites kept non-pollution.The Nemero comprehensive polltion index indicated that 93.1% of the sample sites have a clean level of soil pollution，whilethagiaeaielyanHaonetialolocalsideevaatisultsodtatotsb Cr，Cu and Zn of all sample sites kept light ecological risk level，the content of Hg in 91.7% sample sites kept medium，intense and and very strong ecological hazards，the content of Cd of 4.2% sample sites kept medium ecological risk level，the content of 7 heavy metals as a whole keptlighadeologalislelocusionotetfaealsisowidysilsidead thesoil environmentalqualityisgoodenough.However，duetohumanactivities，someelementsshowatrendofaccumulation.Cdand Hg with high toxicitycoeficentsexhibitmoderate，intensityecologicalrisks.TheAs-contaminatedsitesexhibitspatialaggegation.

KeyWordsHeavymetal;Paddy soil;Pollution index;Ecological risk

近30年来，随着工业的发展和农业农村生产生活方式的改变，农田土壤污染问题逐渐突出，农作物重金属超标问题引起社会关注。（剩余8166字）