| 南丹长坡尾矿坝五种植物富集重金属的生态调查 |
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| 引用本文： | 邓冬梅,覃勇荣,李卉,严军,朱伟伟,邓晰朝.南丹长坡尾矿坝五种植物富集重金属的生态调查[J].河池学院学报,2008,28(5). |
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| 作者姓名： | 邓冬梅 覃勇荣 李卉 严军 朱伟伟 邓晰朝 |
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| 作者单位： | 1. 广西工学院,生物与化学工程系,广西,柳州,545006
2. 河池学院,化学与生命科学系,广西,宜州,546300 |
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| 基金项目： | 桂西北特色资源研究与开发广西高校重点建设实验室资助项目，广西教育厅科研基金资助项目:南丹重金属矿区超富集植物种质资源调查与植物修复示范 |
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| 摘 要： | 为寻找适合矿业尾矿废弃地生态恢复和植物修复的植物,有效的进行矿业尾矿废弃地植被生态恢复,本文调查分析广西南丹长坡矿堆存50年之久的尾矿坝上的灯心草、节节草、类芦、莎草和醉鱼草的覆盖度、生物量以及植物体内的重金属含量.结果表明:这5种植物覆盖度超过40%,高度超过40 cm,为该尾矿坝的优势植物.且具有较高生物量,特别是类芦、灯心草和莎草,生物量均超过20 g-株(干重),说明这些植物适合尾矿坝环境,对重金属有很高耐性.5种植物中,类芦地上部分Zn含量最高为286.45 mg/kg,醉鱼草地上部分Pb和Cd含量最高,分别为148.46 mg/kg和5.54 mg-kg,都未达到超富集植物标准,考虑到高生物量和重金属的耐性,这5种植物在矿废弃地生态恢复和植物修复中都有一定应用价值.此外,5种植物对重金属的转运能力有较大差异,其中醉鱼草对3种重金属的转运系数均超过1,其转运机理值得进一步探讨.
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| 关 键 词： | 植物修复 长坡尾矿 |
Ecological Investigation of Heavy Metal Accumulation in Five Plants at Changpo Mine Tailing of Nandan |
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| DENG Dong-mei,QIN Yong-rong,LI Hui,YAN Jun,ZHU Wei-wei,DENG Xi-chao.Ecological Investigation of Heavy Metal Accumulation in Five Plants at Changpo Mine Tailing of Nandan[J].Journal of Hechi University,2008,28(5). |
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| Authors: | DENG Dong-mei QIN Yong-rong LI Hui YAN Jun ZHU Wei-wei DENG Xi-chao |
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| Institution: | DENG Dong-mei1,QIN Yong-rong2,LI Hui2,YAN Jun2,ZHU Wei-wei2,DENG Xi-chao2(1.Department of Biological , Chemical Engineering,Guangxi University of Technology,Liuzhou,Guangxi 545006,2.Department of Chemistry , Life Sciences,Hechi University,Yizhou,Guangxi 546300,China) |
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| Abstract: | To find suitable plants for ecological restoration of mine tailing and phytoremediation,a field investigation were conducted on Medulla Junci,Hippochaete ramosissimum,Neyraudia reynaudiana,Cyperus michelianus and Buddleia lindleyana in the Changpo mine tailing which had high concentration of Zn,Pb and Cd and has stayed for over 50 years in Nandan in Guangxi.The results showed that the five plants are the dominant plants on the mine tailing as their ground coverage and heights were all over 40% and 40 cm,res... |
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| Keywords: | Zn Pb Cd |
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