四川东部沱江茎瘤芥产地重金属特征及其富集规律研究
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摘要
通过对四川省沱江乡榨菜种植区土壤和榨菜中重金属的分布特征进行调查分析。结果表明,菜头叶茎中Cd、Cr、Cu、Hg、As、Pb 6种重金属元素的含量一般随着土壤中此6种重金属元素含量的增加而增多,但分析样品中也有部分样点表现出异样趋势,通过分析此异常主要是人为活动影响造成的。菜头叶茎中对此6种重金属元素均表现出较高富集性,其中尤以Cd最为严重,富集系数高达12.14。
According to the analysis on the soil of tuber mustard growing area of Tuojang County and the characteristics of heavy metals distribution,this paper indicated that the heavy metals of Cd、Cr、Cu、Hg、As and Pb contained in the leaves and stalks of brussels spouts generally increased with the increasing six heavy metals contained in soil.However some,sampling points among these samples showed the different trend.Through analyzing this anomaly,it was mainly caused by human activities.The leaves and stalks of brussels spouts showed the higher enrichment to the six heavy metals.Especially,the serious one was Cd whose enrichment coefficient reached up to 12.14.
According to the analysis on the soil of tuber mustard growing area of Tuojang County and the characteristics of heavy metals distribution,this paper indicated that the heavy metals of Cd、Cr、Cu、Hg、As and Pb contained in the leaves and stalks of brussels spouts generally increased with the increasing six heavy metals contained in soil.However some,sampling points among these samples showed the different trend.Through analyzing this anomaly,it was mainly caused by human activities.The leaves and stalks of brussels spouts showed the higher enrichment to the six heavy metals.Especially,the serious one was Cd whose enrichment coefficient reached up to 12.14.
引文
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[2]王开峰,彭娜,王凯荣,等.长期施用有机肥对稻田土壤重金属含量及其有效性的影响[J].水土保持学报,2008,22(1):105-108.
[3]韦朝阳,陈同斌.重金属超富集植物及植物修复技术研究进展[J].生态学报,2001,21(7):1197-1203.
[4]孙波.基于空间变异分析的土壤重金属复合污染研究[J].农业环境科学学报,2003,22(2):248-251.
[5]徐应明,李军幸.新型功能膜材料对污染土壤铅汞镉钝化作用研究[J].农业环境科学学报,2003,22(1):86-89.
[6]李正积,傅平都,庞在祥.涪陵榨菜优质的原因[M].成都:四川科学技术出版社,1989.
[7]LY/T 1210-1275-1999森林土壤分析方法[S].北京:中国标准出版社,2000.
[8]刘恩玲,王亮.土壤中重金属污染元素的形态分布及其植物有效性[J].安徽农业科学,2006,34(3):547-557.
[9]高军锋,毛玉红.土壤中重金属植物有效性与植物效应研究[J].四川环境,2008,27(3):110-112.
[10]戴树桂.环境化学[M].北京:高等教育出版社,1996.
[11]韩爱民,蔡继红,屠锦河,等.水稻重金属含量与土壤质量的关系[J].环境监测管理与技术,2002,14(3):27-28,32.
[12]莫争,王春霞,陈琴,等.重金属Cu、Pb、Zn、Cr、Cd在水稻植株中的富集和分布[J].环境化学,2002,21(2):110-116.
[13]周启星,宋玉芳.污染土壤修复原理与方法[M].北京:科学出版社,2004.
目录