不同类型土壤调理剂对土壤-水稻体系中Cd迁移转化的影响

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中图分类号：X53；S156.2 文献标志码：A 文章编号：1672-2043（2025）09-2284-12 doi：10.11654/jaes.2024-0760

Abstract：Toexploretheifluenceofdiversesoilconditionersonthemigrationandtransformatinofcadmium（Cd）withinthesoilrice system，acontroledpotexperimentwasimplementedThisstudycomprisedfivedistincttreatmentstwoinorganicsoilconditionr treatments（ISCandISC2），twoorganicsoilonditioertreatments（OSC1andOSC2），andablankontrol（CK），withnadditiateof （204号 2% foreach.Thestudyinvestigatedtheeffectsofvarioussoilconditionersonsoilphysicochemicalproperties，Cdspeciatin，Cd concentrationifntpsflantsdctdtasotoftsndepesofCdbstodsp genesinricerootsthroughoutthegrowthperiod.Theresultsshowed thatcomparedtotheCKtreatment，allfoursoilconditioners significantly reduced the Cd content in rice grains（ P<0.05 ），with reduction rates of 37.82% （OSC1）， 68.21% （OSC2）， 69.14 % （ISC2），and 83.96 % （ISC1），resptively.Atceaurityogaicndganiconitiossiiicantlyireasedsilpby9-9itsd soil organic matter content by 31.90%-45.58%（P<0.05） respectively， compared to the CK. They also tended to transform the more active Cd nsoil towardssidualandogaicalloudfosrespectively.organiconditionersadageateripactonCdtrasprtwiin riceplantsandteexpressnofCdabsorptionandtrasportgnesthanorganiconditionersTesudydemostratesthatothianic andorganicconditionersreduceCdontentinicegrainsbydirectlyorindirectlyafectingsoilphsicochemicalproperties，soilCd bioavailabilityandCdabsorptionandtransportwithinriceplants，tusachievingremediationandmanagementofCdpolutioninpddy fields.

Keywords：Cd; rice; soil conditioner;migration and transformation;restoration and remediation

耕地是粮食生产的自然基础和资源保障，然而重金属污染问题已成为制约我国耕地安全发展的重要因子，镉（Cd）是其中首要污染物[。（剩余22085字）