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《喷施沼液对芸豆产量和重金属含量的影响-论文.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、第37卷第1期弥诧尉敢V01.37No.12014年1月EnvironmentalScience&TechnologyJan.2014夏春龙,张洲,张雨,等.喷施沼液对芸豆产量和重金属含量的影响叨.环境科学与技术,2014,37(1):7—12.XiaChunlong,ZhangZhou,ZhangYu。eta1.E伍巳ctsofbiogasslurrysprayingonyieldandheavymetalsresiduesofkidneybean(Phaseolusvulgaris)[J].Envi
2、ronmentalScience&Technology,2014,37(1):7—12.喷施沼液对芸豆产量和重金属含量的影响夏春龙,张洲,张雨,陈景文,蔡喜运(大连理工大学环境学院工业生态与环境工程教育部重点实验室,辽宁大连116024)摘要:该研究通过田间试验,以芸豆为试材,开展了喷施沼液对其生长、产量、病虫害和重金属含量影响的测试,并采用目标危险系数法(THQ)评价了芸豆果实中重金属的健康风险。结果表明,喷施沼液促进了芸豆植株根系发育,果实籽粒生长,提高果实数量,降低了芸豆锈病和细菌性疫病发病率,减
3、少了二十八星瓢虫的啃食作用,增加了果实产量,增产幅度为17.6%。芸豆果实样品中检测了5种重金属,其中zrI、cu、Cr、Cd4种重金属含量范围分别为31.93-38.88mg/kg、5.56-8.29mg/kg、0.64—1.29mg/kg和O.09—0.15mg&g,未检测到Pb,喷施沼液芸豆中重金属含量满足《食品中污染物限量》(GB2762-2005)规定。总目标危险系数显示食用喷施沼液的芸豆不存在明显的健康风险,但儿童潜在健康风险高于成人,城市人群高于农村人群。关键词:沼液;芸豆;产量;重金属;
4、健康风险评价中图分类号:X171.3文献标志码:Adoi:10.3969/j.issn.1003-6504.2014.01.002文章编号:1003-6504(2014)01—0007-06EffectsofBiogasSlurrySprayingonYieldandHeavyMetalsResiduesofKidneyBean(Phaseolusvulgaris)●XIAChunlong,ZHANGZhou,ZHANGYu,CHENJingwen,CAIXiyun(KeyLaboratoryofInd
5、ustrialEcologyandEnvironmentalEngineeringofMinistryofEducation,SchoolofEnvironmentalScienceandTechnology,DalianUniversityofTechnology,Dalian116024,China)Abstract:Efectsofbiogasslurrysprayingonplantgrowth,yield,diseaseandinsectpestsituation,andheavymetals
6、residueofkidneybeanwerestudiedinfieldtrials.Resultsshowedthatbiogasslurrysprayingfacilitatedrootgrowth,increasedfruitamount,strengthenedresistancetocommonbacterialb~ghtincomnlonbeans(Xanthomonascampestris)andthecomillonbeanrustdisease(Uromycesappendicula
7、tus),andreducedchewingofthe28-spottedpotatoladybird(Henose—pilachnavigintioctopunctata).Anincreaseabout17.6%inmeyieldofkidneybeanwasobtained.Inkidneybeansamples,Pdwasnotdetected,andconcen~afionsforZn,Cu,Cr,Cdwereobservedintherangeof31.93-38.88mg/kg,5.56-
8、8.29mg/l(g,0.64~1.29mg,kg,0.09~0.15mrespectively.LevelsofheavymetalsafterbiogasslurrysprayingwerebelowmaximumlevelsofContaminantsLimitinFoodsofGB2762—2005.Analysisoftotaltargethazardquotient(TTHQ)showedthatkidneybeanwasedi
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