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首页> 外文期刊>Science of the total environment >Identification of traffic-related metals and the effects of different environments on their enrichment in roadside soils along the Qinghai-Tibet highway
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Identification of traffic-related metals and the effects of different environments on their enrichment in roadside soils along the Qinghai-Tibet highway

机译：青藏公路沿线土壤中与交通有关的金属的识别以及不同环境对其富集的影响

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摘要

The road transportation could affect roadside soils environment detrimentally, including heavy metal enrichment. In order to identify and evaluate the enrichment of heavy metals resulted from road transportation on the Tibetan Plateau, the 11 heavy metals (V, Cr, Co, Ni, Cu, Zn, As, Cd, Rb, Pb and Tl) in the topsoil (0-10 cm depth) from four sites along the Qinghai-Tibet highway were discussed in this study. Our results indicate that heavy metals such as Cr, Cu, Zn, As, Cd and Pb are related to road transportation. The content of most of these heavy metals in roadside soils decreased exponentially with the distance from the road, as did some of the Nemero Synthesis Indexes (PN values). The contamination factor for the traffic-related metals ranged from 0.56 (no pollution) to 5.67 (considerable pollution) and the Nemero Synthesis Indexes of these heavy metals ranged from 0.80 (no pollution) to 4.49 (severe pollution). Cd was of priority concern as it had the highest contamination factor. The highest PN value for these traffic-related heavy metals was found in soils at site TTH (alpine steppe). Although transportation contributed to the high contents of these traffic-related metals in roadside environments, regional differences such as wind and the terrain also had significant relationship with their enrichment in these roadside soils. The roadside distance at which there is a potential risk to livestock and wildlife from the contamination of soils by heavy metals should be determined scientifically along the Qinghai-Tibet highway, based on the different natural environments found in the region.
机译：公路运输会对路旁土壤环境产生不利影响，包括重金属富集。为了识别和评估青藏高原公路运输带来的重金属富集，表层土壤中的11种重金属（V，Cr，Co，Ni，Cu，Zn，As，Cd，Rb，Pb和Tl）本研究讨论了青藏公路沿线四个站点的深度（0-10厘米）。我们的结果表明，Cr，Cu，Zn，As，Cd和Pb等重金属与道路运输有关。与某些Nemero综合指数（PN值）一样，路边土壤中大多数重金属的含量随着距道路的距离呈指数下降。与交通有关的金属的污染因子范围从0.56（无污染）到5.67（相当程度的污染），这些重金属的Nemero综合指数从0.80（无污染）到4.49（严重污染）不等。镉是最受关注的，因为它具有最高的污染因子。这些交通相关重金属的最高PN值位于TTH（高山草原）站点的土壤中。尽管交通运输在路边环境中增加了这些与交通有关的金属的含量，但区域差异（例如风和地形）也与它们在路边土壤中的富集度有显着关系。应根据该地区发现的不同自然环境，科学确定沿青藏公路沿线存在的可能对牲畜和野生生物造成危险的路边距离。

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  • 来源
    《Science of the total environment》 |2015年第15期|160-172|共13页
  • 作者

    Hua Zhang; Zhaofeng Wang; Yili Zhang; Mingjun Ding; Lanhui Li;

  • 作者单位

    Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographic Sciences and Natural Resource Research, Chinese Academy of Sciences (CAS), Beijing 100101, China,Key Laboratory of Poyang Lake Wetland and Watershed Research, Ministry of Education, Jiangxi Normal University, Nanchang 330022, China;

    Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographic Sciences and Natural Resource Research, Chinese Academy of Sciences (CAS), Beijing 100101, China;

    Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographic Sciences and Natural Resources Research (IGSNRR), Chinese Academy of Sciences (CAS), No. 11 A, Datun Road, Anwai, Beijing 100101, China,CAS Center for Excellence & Innovation in Tibetan Plateau Earth System Sciences, Beijing 100101, China;

    Key Laboratory of Poyang Lake Wetland and Watershed Research, Ministry of Education, Jiangxi Normal University, Nanchang 330022, China;

    Key Laboratory of Poyang Lake Wetland and Watershed Research, Ministry of Education, Jiangxi Normal University, Nanchang 330022, China;

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  • 正文语种 eng
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  • 关键词

    Qinghai-Tibet highway; Road transportation; Soil pollution; Tibetan Plateau; Traffic-related metals;

    机译：青藏公路;公路运输;土壤污染;青藏高原交通相关金属;

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