102国道吉林段玉米田土壤铅污染特征及评价-玉米科学.PDFVIP

玉 米 科 学2015，23(5)：102～106 JournalofMaizeSciences 文章编号：1005-0906(2015)05-0102-05 DOI:10.13597/j.cnki.maize.science “102国道”吉林段玉米田土壤铅污染特征及评价 曹铁华，徐 晨，梁烜赫，陈宝玉，王洪君，王 楠，朱 平 (吉林省农业科学院农业资源与环境研究所，长春 130033) 摘 要：对“102国道”吉林段两侧农田距公路不同距离及不同深度耕层土壤中铅含量进行分析，结果表明， “102国道”两侧土壤铅含量范围在12～51mg/kg，铅的单项污染指数未超过1，属清洁水平；土壤中铅含量横向上垂 直于“102国道”两侧050100m，国道右侧含量高于左侧，沿“102国道”自南向北四平段公主岭段长春段德惠 段扶余段。不同时期土壤中铅含量播种前抽雄期灌浆期成熟期，年际间呈第一年春季高、秋季低，第二年春季 高的“V”字型变化趋势；不同深度耕层土壤中铅含量无显著差异，随着生育进程有减少的趋势。 关键词：玉米；铅；“102国道”；农田土壤 中图分类号：S513.01 文献标识码：A LeadPollutionCharacteristicsandAssessmentofCorn Fieldof102NationalRoadinJilin CAOTie-hua,XUChen,LIANGXuan-he,CHENBao-yu,WANGHong-jun,WANGNan,ZHUPing (InstituteofAgriculturalResourcesandEnvironment, JilinAcademyofAgriculturalSciences,Changchun 130033,China) Abstract:Theresearchofleadcontentofsoilfromdifferentdistances,differentperiodsanddifferentdepthbe⁃ sidethenationalhighway 102ofJilinprovincesectionofthefarmlandwasstudied.Theresultsshowedthatthelead contentofnationalroad 102onbothsidesofthesoilrangefrom 12mg/kgto51mg/kg.Thesinglepollutionindexof leadwasmorethan 1whichwasbelongtothecleannesslevel.Thechangetrendofleadcontentinthesoilonthelat⁃ eralperpendiculartothenationalroad 102onbothsideswas0m50m100m.Thenationalroadontherightside contentwashigherthanthatoftheleft.Alongthe 102nationalhighwayfromsouthtonorth,thechangetrendwas SipingGongzhulingChangchunDehuiFuyu.Thechangetrendofleadcontentinthesoilatdifferentperiods wasbeforetheseedingtasselingstagemilkingstagematurestage.Thechangetrendwas “V”typewhichthe firstyearinthespringwashigh;autumnwaslowandinthesecondyearofthespringwashigh.Therewasnosignifi⁃ cantdifferencebetweentheleadcontentinarablelayersoilofdi