| 云南省个旧锡矿区重金属污染评价及植被恢复初探 |
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| 引用本文： | 郑国强,方向京,张洪江,王伟.云南省个旧锡矿区重金属污染评价及植被恢复初探[J].水土保持通报,2009,29(6):208-212,231. |
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| 作者姓名： | 郑国强 方向京 张洪江 王伟 |
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| 作者单位： | 郑国强,ZHENG Guo-qiang(北京林业大学水土保持学院,北京100083;青海省水土保持局,青海西宁810001);方向京,FANG Xiang-jing(云南省林业科学研究院,云南,昆明,650204);张洪江,王伟,ZHANG Hong-jiang,WANG Wei(北京林业大学水土保持学院,北京,100083) |
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| 基金项目： | 云南省科技攻关项目“矿区废弃地生态修复综合控制技术研究与示范”(2006SG24);国家林业局项目“建设工程损毁林地植被修复关键技术研究与示范”(200904030) |
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| 摘 要： | 通过对云南个旧锡矿区废弃地重金属的野外调查和室内测定,运用地质累积指数对重金属污染进行了评价.结果表明,研究区废弃地重金属含量从高到低依次为Cd>Mn>Pb>As>Zn>Cu=Fe,其中Cd和Mn的地质累积指数最高,平均达到了4.55以上,污染等级达到5级,属于强度污染到极强度污染;Pb的地质累积指数平均达到了3.08以上,污染等级为4级,属于强度污染;As和Zn的平均地质累积指数分别为2.37和1.97,污染等级分别为3级和2级,达到了中度污染以上;Cu和Fe的平均地质累积指数均小于0,没有产生污染;采用造林措施对矿区废弃地进行复垦较采用农业措施对于治理矿区重金属污染具有更好的效果,因此可以采用覆土造林方式作为矿区废弃地复垦的主要方式.最后,结合不同地块重金属污染状况评价结果,提出了针对废弃地进行植被恢复的主要植物种.
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| 关 键 词： | 重金属污染 污染评价 地质累积指数 植物种 云南个旧锡矿 |
| 收稿时间： | 4/7/2009 12:00:00 AM |
| 修稿时间： | 2009/5/15 0:00:00 |
Heavy Metal Pollution and Vegetation Restoration in Gejiu Tin Deposit in Yunnan Province |
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| ZHENG Guo-qiang,FANG Xiang-jing,ZHANG Hong-jiang and WANG Wei.Heavy Metal Pollution and Vegetation Restoration in Gejiu Tin Deposit in Yunnan Province[J].Bulletin of Soil and Water Conservation,2009,29(6):208-212,231. |
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| Authors: | ZHENG Guo-qiang FANG Xiang-jing ZHANG Hong-jiang and WANG Wei |
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| Institution: | College of Soil and Water Conservation,Beijing Forestry University,Beijing 100083,China;Soil and Water Conservation Bureau of Qinghai Province,Xining,Qinghai 810001,China;Yunnan Academy of Forestry, Kunming,Yunnan 650204,China;College of Soil and Water Conservation,Beijing Forestry University,Beijing 100083,China;College of Soil and Water Conservation,Beijing Forestry University,Beijing 100083,China |
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| Abstract: | By field survey and laboratory analysis on mine wasteland in Gejiu tin deposit in Yunnan Province, the geoaccumulation index was used for heavy metal assessment. Results showed that by the content of heavy metal,the order of the heavy metals was Cd>Mn>Pb>As>Zn>Cu=Fe. The average geoaccumulation indexes of Cd and Mn were above 4.55, which was the highest one among them, and their pollution levelreached 5, which w as betw een intense and very intense pollution. T he average geoaccumulatio n index of Pb was 3.08 and its pollution level reached 4, which belonged to intense pollution. The average geoaccumulation indexes of As and Zn were 2.37 and 1.97 and their pollution levels reached 3 and 2,which belonged to mo derate pollution.The average geoaccumulation indexes of Cu and Fe were less than0,w hich was in no pollution.The measure of forestation was better than agriculture for heavy metal pollution management on the mine wasteland. Combined with the result of heavy metal assessment,the main plants for vegetation restoration w ere given. |
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| Keywords: | heavy metal pollution pollution assessment geoaccumulation index plant Gejiu tin deposit in Yunnan Province |
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