| 路域土壤植物系统重金属污染研究综述 |
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| 引用本文： | 杜孔昌,张景光,冯丽.路域土壤植物系统重金属污染研究综述[J].中国沙漠,2014,34(6):1598-1604. |
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| 作者姓名： | 杜孔昌 张景光 冯丽 |
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| 作者单位： | 1. 中国科学院寒区旱区环境与工程研究所 沙坡头沙漠研究试验站, 甘肃 兰州 730000;2. 中国科学院大学, 北京 100049 |
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| 基金项目： | 国家自然科学基金项目(41171042)资助 |
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| 摘 要： | 道路建设、交通活动向周围环境排放重金属污染物,引起路域土壤重金属污染和植物体内重金属含量升高.这些污染物还可能通过食物链对动物及人类造成影响,对区域生态安全构成威胁.本文综述了路域土壤重金属含量随与路缘距离和土层深度增加的变化规律,路域土壤重金属空间分布的影响因素以及路域土壤重金属的赋存形态.从4方面论述了路域植物重金属污染的研究:(1)路域植物吸收重金属的途径;(2)植物体内重金属含量与距离路缘的关系;(3)路域不同植物种的重金属含量差异;(4)同种植物不同器官中的重金属含量的差异.
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| 关 键 词： | 路域 重金属 土壤-植物系统 分布 赋存形态 |
| 收稿时间： | 2013-11-20 |
| 修稿时间： | 2013-12-23 |
Research Review on Heavy Metal Contamination of the Soil-Plant System along Roadside |
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| Du Kongchang,Zhang Jingguang,Feng Li.Research Review on Heavy Metal Contamination of the Soil-Plant System along Roadside[J].Journal of Desert Research,2014,34(6):1598-1604. |
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| Authors: | Du Kongchang Zhang Jingguang Feng Li |
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| Institution: | 1. Shapotou Desert Research and Experiment Station, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China;2. University of Chinese Academy of Sciences, Beijing 100049, China |
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| Abstract: | Road construction and transportation activities let out heavy metal pollutant into surrounding environment and give rise to heavy metal contamination of soil and high level of heavy metals in plants along roadside. The contaminant could also affect animals and human through food chain and pose a threat to regional ecological security. The change rule of traffic-related heavy metals concentrations with the increase of distance away from the curb and soil depth,the influencing factors of spatial distribution of traffic-related heavy metals in soils along roadside and the occurrence form of heavy metals in soils along roadside is summarized in review. The paper also summarized studies of heavy metal pollution of plants along roadside in four aspects: (1) The approach of plants absorbing heavy metals along roadside, (2) the relationship between heavy metal content in plant and the distance away from curb, (3) heavy metal content differences in different plants along roadside, (4) differences of heavy metal content in different organs of the same plant species. |
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| Keywords: | roadside heavy metal soil-plant system distribution chemical speciation |
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