北方典型区域果园表层土壤农药类POPs残留特征分析.pdf

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1、农业环境科学学报2010，29(8)：1515—1519JournalofAgro—EnvironmentScience北方典型区域果园表层土壤农药类POPs残留特征分析杨世琦，刘国强，张爱平，王永生，杨正礼(中国农业科学院农业环境与可持续发展研究所／农业部农业环境与气候变化重点开放实验室，北京100081)摘要：在我国典型果业生产区域的黄土高原、胶东半岛和北京郊区选择11个采样区的99个果园，利用GPS定位仪共采集0～20cm表土样品99份，测定了DDT、六氯苯、七氯、氯丹、狄氏剂、异狄氏剂、灭蚁灵和艾氏剂等8种主要POPs残留量，对土壤POPs残留的环境安全性、土

2、壤残留差异性以及区域分布特点进行了分析研究。结果表明：(1)果园表层土壤8种POPs残留浓度符合国家土壤环境质量标准，属于环境安全残留；(2)滴滴涕是果园土壤残留分布最广泛和残留量较高的POPs，其次是六氯苯、氯丹和七氯，再其次是狄氏剂、异狄氏剂、灭蚁灵和艾氏剂；(3)果园土壤POPs残留种类多、广泛残留与高残留量地区的共同特征是建园早、园龄长、自然条件好和农业经济较发达。关键词：POPs；果园；表土；残留特征；典型区域中图分类号：X592文献标志码：A文章编号：1672—2043(20LO)08—1515—05AnalysisonRemainingCharacter

3、sofPesticideTypePOPsinOrchardTopsoilinTypicalProductionZoneofNorthChinaYANGShi—qi，LIUGuo—qiang，ZHANGAi—ping，WANGYong—sheng，YANGZheng—li(InstituteofEnvironmentandSustainableDevelopmentinAgriculture，ChineseAcademyofAgriculturalSciences／KeyLaboratoryofAgro—EnvironmentandClimateChange，Minis

4、tryofAgriculture，Beijing100081，China)Abstract：IntypicalfruitproductionregionsinChinawhichareinvolvedtheLoessPlateau，JiaodongPeninsularandBeijingsuburb，where99orchardswerechosentobeservedastest．WiththehelpofGPSthe99samplesof0-20centimetretopsoilwerecollectedupandthecontentof8kindsofPersi

5、stentOrganicPollutants(POPs)ofthesesampleswasdetermined，whichconsistsofHexachlorobenzene(HCB)，Chlordane，Dieldrin，Endrin，DDT，Mirex，HeptachlorandAldrin．Theenvironmentsecurity，differencesoftopsoilremainingandtheeharac-tersofzonedistributionofPOPswereanalysed．Theresultsshowedasfellow：(1)The

6、remainingcontentof8kindsofPOPsinorchardtopsoilaccordedwiththesoilquality--DeterminationofBHCandDDT—一Gaschromatography(GB／T14550--1993)andwereallatthestateofenvi-ronmentsecurity；(2)DDTwasoneofthemostextensiveandhighestremainofPOPsinorchardtopsoil，categorytwoPOPswereHCB，Chlor—daneandHepta

7、ehlorwhichallhavesimilarcharactersoforchardtopsoilremain，categorythreePOPsareDieldrin，Endrin，Mirex，andAldrinwhichallhavesimilarcharactersoforchardtopsoilremain；(3)ThecomnlonfeaturesofextensiveandhighandnmltikindsofPOPsremainzonehadalongplantingfruitperiod，inthemeantimetherehada