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| 宁连高速两侧土壤及小麦重金属污染特征研究 |
| Research of Heavy Metals Pollution in Soils and Wheat on Both Sides of Lianyungang—Nanjing Expressway |
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| DOI： |
| 中文关键词: 土壤 小麦 重金属 高速公路 交通污染 |
| 英文关键词: Soils Wheat Heavy metals Expressway Traffic pollution |
| 基金项目:江苏省环保科研课题基金资助项目（2016021）；江苏省国土资源科技基金资助项目（KJXM2016039） |
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| 中文摘要: |
| 选择宁连高速沿线4个路段采集土壤和小麦样品，研究Pb、Cd、Cr、Cu和Zn等5种重金属在高速两侧土壤及小麦中的分布特征、累积规律和影响因素。结果表明：高速两侧距路肩0 m～350 m范围内，土壤和小麦中5种重金属质量比均受到高速交通影响；高速两侧农田内土壤和小麦综合质量影响指数IICQ均＜1，各路段农田土壤环境质量清洁；Pb同位素组成显示大气吸收是小麦中重金属累积的主要途径。交通污染是影响高速沿线土壤和农产品质量安全的主要因素。 |
| 英文摘要: |
| The distribution characteristics， accumulative laws and influence factors of 5 heavy metals ( Pb， Cd， Cr， Zn and Cu) in soils and wheat from four typical sections of Lianyungang—Nanjing expressway were studied. The results showed that the mass ratio of these 5 heavy metals in the soils and wheat within 0 m～350 m to the road shoulder on both sides of the expressway were affected by the traffic. The influence index of comprehensive quality (IICQ) of the soils and wheat on both sides of the expressway were smaller than 1. The farmland soils environmental quality was clean at each section of the expressway. Pb isotopic composition reflected the accumulation of heavy metals in wheat was mainly by atmospheric absorption. It concluded that traffic pollution was the major factor affecting the safety of the soils and agricultural products along the expressway. |
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