| 浙东沿海某地区大气干湿沉降对土壤重金属
元素含量的影响 |
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| 引用本文： | 黄春雷,宋金秋,潘卫丰.浙东沿海某地区大气干湿沉降对土壤重金属
元素含量的影响[J].地质通报,2011,30(9):1434-1441. |
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| 作者姓名： | 黄春雷 宋金秋 潘卫丰 |
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| 作者单位： | 浙江省地质调查院,浙江 杭州311203 |
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| 基金项目： | 浙江省国土资源厅项目《浙江省基本农田质量调查试点》(编号:浙土资厅函[2007]592号) |
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| 摘 要： | 基于对浙东沿海某典型固废拆解区重金属元素大气干湿沉降特征的研究,探讨了重金属元素干湿沉降输入对土壤环境的影响。结果表明,研究区露天焚烧等不规范的固废拆解行为造成大气质量恶化,对土地质量造成严重的负面影响。区内干、湿沉降中Cd、Cu、Pb、Zn、Ni等重金属元素的含量均远高于浙江省干、湿沉降平均值和其它相关标准值,并且其年沉降通量在省内居高,尤其是Cu、Zn两种元素每年每平方百米沉降通量分别达7108g、11420g。研究显示,大气沉降能大大增加研究区土壤重金属元素的含量水平,Cu、Zn、Cd、Pb平均年增加量分别达3426ng/g、5819ng/g、6.50ng/g、582ng/g,并且年增加率较大,Pb、Cu、Zn等重金属元素的年增加率达0.5%以上。
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| 关 键 词： | 土壤 大气干湿沉降 重金属元素 浙东沿海 固废拆解区 |
Impact of dry and wet atmospheric deposition on content of heavy metals in soils along coastal areas of eastern Zhejiang Province |
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| HUANG Chun-lei,SONG Jin-qiu,PAN Wei-feng.Impact of dry and wet atmospheric deposition on content of heavy metals in soils along coastal areas of eastern Zhejiang Province[J].Geologcal Bulletin OF China,2011,30(9):1434-1441. |
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| Authors: | HUANG Chun-lei SONG Jin-qiu PAN Wei-feng |
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| Institution: | Zhejiang Institute of Geological Survey,Hangzhou 311203, Zhejiang, China |
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| Abstract: | In this paper, the characteristics of atmospheric heavy metal deposition (dry and wet deposition) in a typical solid waste area of eastern Zhejiang were studied and, on such a basis, the impact degree of dry and wet atmospheric deposition on content of heavy metals in soils was discussed in detail, and the variation rate of heavy metals in soils of the study area was predicted through mathematical model construction. The results show that the values of cadmium, copper, lead, zinc, nickel and other heavy metals in both dry and wet atmospheric depositions are much higher than average values of Zhejiang Province and other standard values. Moreover, the deposition fluxes of heavy metals are all at high levels in the whole province, especially for copper and zinc. The annual deposition fluxes are respectively 7108g/hm2 and 11420g/hm2. It is predicted that the content of heavy metals in soils could increase rapidly due to the impact of the dry and wet atmospheric deposition, and the increasing amounts of copper, zinc, cadmium and lead reach respectively 3426ng/g, 5819 ng/g, 6.50ng/g, and 582ng/g. In addition, the increasing rates of heavy metals are great in soils of the study area. The annual increasing rates of copper, lead and zinc have all reached 0.5% or more. |
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| Keywords: | soil dry and wet atmospheric deposition heavy metals eastern Zhejiang solid waste area |
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