| 庞 龙，卢新卫，巢世刚.省道路边菜地土壤重金属含量分布及污染评价[J].干旱地区农业研究,2013,31(6):203~207 |
| 省道路边菜地土壤重金属含量分布及污染评价 |
| Distribution of heavy metal content and pollution assessment in vegetable soil around provincial highway |
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| DOI：10.7606/j.issn.1000-7601.2013.06.035 |
| 中文关键词: 菜地 重金属 公路边土壤 含量 污染指数 |
| 英文关键词:vegetable heavy metal field nearby provincial highway content pollution index |
| 基金项目:国家自然科学基金（41271510）；中央高校基本科研业务费项目（GK201305008） |
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| 中文摘要: |
| 采集西安市S107省道路边菜地土壤样品，利用XRF法测定土壤样品中重金属的含量，研究路边土壤中重金属的含量变化特征及污染水平。研究结果显示，路边菜地土壤中存在着Cu、Pb、Zn、Cr、Mn、Ni和V的累积现象。土壤重金属含量空间变化分析表明，防护林能够有效限制扩散能力强的Pb和Cr的传播范围，可阻挡通过大颗粒污染物扩散的Cu、Zn、Mn、Ni、V和As进入菜地土壤。单项污染指数评价结果显示，菜地土壤中Cu、Pb、Zn、Cr、Mn、Ni、V单因子污染指数均在1.0～1.7范围内，都达到了轻度污染，其中Pb、Cr污染指数能达到1.6和1.7，污染相对较重。路边菜地土壤重金属的综合污染指数分别为1.9和1.8，污染水平为轻度。 |
| 英文摘要: |
| The soil samples were collected from the vegetable field nearby S107 provincial highway of Xi'an City. The content variation and pollution level of heavy metal in these soil samples were studied by measuring the heavy metal content using the XRF method. The results indicated that: The Cu, Pb, Zn, Cr, Mn, Ni and V were accumulated in these studied soils. The spatial variation analysis of heavy metals in these soils demonstrated that the shelter forest can be effectively limited the diffusion ability and transmission range of Pb and Cr, and prevented the Cu, Zn, Mn, Ni, V and As spreading into the vegetable soils by the large particles pollutants. The assessment results of single pollution index shown that Cu, Pb, Zn, Cr, Mn, Ni and V were in the range of 1.0 to 1.7, total presented light pollution.Among them, the Pb and Cr reached 1.6 and 1.7, was relative heavy pollution. The integrated pollution index of heavy metals in these soil was 1.9 and 1.8, espectively. The pollution level was light. |
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