山西省高速路路旁土壤-植物重金属分布格局及相关性

编号 lyqk003679

中文标题 山西省高速路路旁土壤-植物重金属分布格局及相关性

作者 王慧  郭晋平  张芸香 

作者单位 山西农业大学 太谷 030801

期刊名称 中国城市林业 

年份 2011 

卷号 9

期号 3

栏目名称 森林经营 

中文摘要 在山西省3条高速路典型绿化路段路侧设置样带,按距离梯度采集路旁土壤及植物叶片进行Pb、Cr、Cu、Zn重金属含量测定,分析4种重金属污染物在表层土壤及叶片中的扩散格局和相关性。结果表明,山西省主要高速路绿化带路旁土壤中Pb、Cr、Cu和Zn4种重金属污染物相对集中在10~40m范围内,路旁绿化植物叶片中也主要集中在40m范围内,不同重金属元素峰值位置不同;路旁土壤中4种重金属元素之间有良好的同源关系,土壤Cu、Zn与植物叶片中同种元素含量呈正相关关系,土壤Cr、Cu、Zn与植物叶片中4种重金属元素与采样距离均呈负相关关系;杨树对4种重金属元素的富集能力不同,由高到低表现为Zn、Cu、Pb、Cr。

关键词 重金属  分布格局  相关关系  富集能力 

基金项目 山西省攻关项目(20100311015);山西省林业科技创新项目(G09-47)

英文标题 Dispersion patterns and Correlation of Heavy Metal in Soils and Green Plants Leaves along Highways in Shanxi Province

作者英文名 Wang Hui, Guo Jinping, Zhang Yunxiang

单位英文名 Shanxi Agricultural University,Taigu 030801,China

英文摘要 Three typical roadside tree-belts of highways were selected in Shanxi province for measuring the concentration of heavy metals (Pb、Cr、Cu、Zn) in roadside surface soils and the tree-belts and analyzing the dispersion pattern and correlation of the 4 heavy metals there. The results showed the 4 heavy metals as pollutant were found within 10 m-40 m both in roadside soils and green plant leaves which were mainly growing at the 40 m away from the highways, and the peak values of the 4 heavy metals were different at different locations. There was a co-source relation among the 4 heavy metals in roadside soils, and Cu and Zn in roadside soils showed a positive correlation with those in green plants leaves while Cr, Cu and Zn in soils and the 4 heavy metals in Poplar. leaves were negatively correlated with sample collection distance. Poplar. leaves showed different bioconcentration capacity on 4 heavy metal elements, with the order of Zn、Cu、Pb、Cr.

英文关键词 heavy metals;dispersion pattern;correlation;bioconcentration capacity

起始页码 31

截止页码 33,64

投稿时间 2011-06-04 00:00:00

作者简介 王慧,博士研究生,主要从事森林培育学研究。E-mail:birdpink@163.com

分类号 S731.9

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