| 桂柳高速公路两侧土壤重金属分布特征 |
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| 引用本文： | 刘辉利,朱义年. 桂柳高速公路两侧土壤重金属分布特征[J]. 桂林工学院学报, 2009, 29(2): 266-270 |
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| 作者姓名： | 刘辉利 朱义年 |
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| 作者单位： | 1. 桂林理工大学资源与环境工程系,广西,桂林,541004
2. 桂林理工大学广西环境工程与保护评价重点实验室,广西,桂林,541004 |
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| 基金项目： | 广西环境工程与保护评价重点实验室研究基金，广西自治区科学基金，广西高校人才小高地建设环境工程创新团队资助计划项目 |
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| 摘 要： | 选择桂柳高速公路上的4个调查剖面和1个对照剖面测试了公路两侧农田土壤中Pb、Cd、Cr、Hg和As的含量分布。结果表明，公路交通对路两侧土壤重金属含量有一定的影响，运行期较长的对照路段桂黄公路两侧土壤中的Pb、Cd和As的含量明显高于运营期较短的桂柳高速公路段，而Cr、Hg与公路运行期长短的关系不是非常密切；重金属含量在横向上都有随距路肩距离的减小而增大的趋势，Pb、Cd在路肩两侧200m范围内含量的变化较小。以广西水稻土土壤背景值为评级标准，采用单因子指数法评价了路侧土壤的环境质量：所测路段和剖面的Cd、Hg污染均较严重；Cr基本上还处在非污染水平；桂黄公路段Pb的污染指数高于高速公路段。
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| 关 键 词： | 重金属 土壤 桂柳高速公路 桂林 |
Heavy Metal Distribution Characteristics in Roadside Soil of Guilin-Liuzhou Express |
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| LIU Hui-li,ZHU Yi-nian. Heavy Metal Distribution Characteristics in Roadside Soil of Guilin-Liuzhou Express[J]. Journal of Guilin University of Technology, 2009, 29(2): 266-270 |
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| Authors: | LIU Hui-li ZHU Yi-nian |
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| Affiliation: | a.Department of Resources and Environmental Engineering;b.Guangxi Key Laboratory of Environmental Engineering;Protection and Assessment;Guilin University of Technology;Guilin 541004;China |
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| Abstract: | The distribution of Pb,Cd,Cr,Hg and As in roadside soil of Guilin-Liuzhou express is studied.The results show that the traffic affects the soil quality.The content of Pb,Cd and As are obviously higher in Guilin Huangshahe section,the comparative profile with a longer traffic time than that in the Guilin-Liuzhou express section.But the content of Cr and Hg does not have much to do with the traffic-time.The content of heavy metals increases according to the distance decreasing apart from the roadbed,but in ex... |
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| Keywords: | heavy metals soil Guilin-Liuzhou express Guilin |
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