Chelator-enhanced phytoextraction of heavy metals from contaminated soil irrigated by industrial wastewater with the hyperaccumulator plant (Sedum alfredii Hance)
文献类型：期刊论文
| 作者 | Sun, YB ; Zhou, QX ; An, J ; Liu, WT ; Liu, R |
| 刊名 | GEODERMA
 |
| 出版日期 | 2009 |
| 卷号 | 150期号:1-2页码:106-112 |
| 关键词 | Heavy metal contamination Chelator Phytorextraction Hyperaccumulator Sedum alfredii Hance |
| ISSN号 | 0016-7061 |
| 通讯作者 | Zhou, QX, Chinese Acad Sci, Inst Appl Ecol, Key Lab Terr Ecol Proc, Shenyang 110016, Peoples R China |
| 中文摘要 | Enhanced phytoextraction of heavy metals using chelating agents and metal-hyperaccumulators has been proposed as an effective approach to removing heavy metals from contaminated soils. The effects of application of EDTA and citric acid (CA) on the growth of Sedum alfredii and its heavy metal uptake and accumulation were investigated using the pot-culture experiments. The application of EDTA (5 and 8 mmol kg(-1)) and CA (5 and 8 mmol kg(-1)) had inhibitory effects on the growth of the plants, resulted in 60.0%, 50.0%, 55.6% and 85.0% reduction in shoot dry biomass, respectively, compared with that in the control. However, the addition of chelators effectively increased the mobility of target heavy metals (Cd, Cu, Pb and Zn) in soils, and significantly enhanced the accumulation of these heavy metals in aerial parts of the plants. The concentrations of Cd, Cu, Pb and Zn increased by 2.37-4.86. 0.09-3.73, 0.33-5.06 and 3.71-6.06 times, respectively, compared with the control. The application of EDTA (5 and 8 mmol kg(-1)) and CA (5 and 8 mmol kg(-1)) could markedly enhance Cd and Zn accumulation. up to 970.6-1463.9 and 3288.3-5376.6 mu g pot(-1) DW, respectively. The most effective method for Cd and Zn accumulation was the treatment of 8 mmol kg(-1) CA. As for Pb, the addition of 5 mmol kg(-1) CA was obtained the maximum value of phytoextraction. (C) 2009 Elsevier B.V. All rights reserved. |
| 学科主题 | Soil Science |
| 收录类别 | SCI |
| 资助信息 | hi-tech research and development program (863) of China [2006AA06Z386]; Sino-Russion joint Research Center on Natural Resources and Eco-Environmental Sciences ; Ministry of Education, People's Republic of China [707011] |
| 语种 | 英语 |
| WOS记录号 | WOS:000265342800012 |
| 公开日期 | 2011-09-23 |
| 源URL | [http://210.72.129.5/handle/321005/54173]  |
| 专题 | 沈阳应用生态研究所_沈阳应用生态研究所_期刊论文 |
| 推荐引用方式 GB/T 7714 | Sun, YB,Zhou, QX,An, J,et al. Chelator-enhanced phytoextraction of heavy metals from contaminated soil irrigated by industrial wastewater with the hyperaccumulator plant (Sedum alfredii Hance)[J]. GEODERMA,2009,150(1-2):106-112. |
| APA | Sun, YB,Zhou, QX,An, J,Liu, WT,&Liu, R.(2009).Chelator-enhanced phytoextraction of heavy metals from contaminated soil irrigated by industrial wastewater with the hyperaccumulator plant (Sedum alfredii Hance).GEODERMA,150(1-2),106-112. |
| MLA | Sun, YB,et al."Chelator-enhanced phytoextraction of heavy metals from contaminated soil irrigated by industrial wastewater with the hyperaccumulator plant (Sedum alfredii Hance)".GEODERMA 150.1-2(2009):106-112. |
入库方式： OAI收割
来源：沈阳应用生态研究所
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