| 重金属Cd,Pb,Zn在油唛菜中的富集和分布 |
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| 引用本文： | 朱桂芬,王学锋. 重金属Cd,Pb,Zn在油唛菜中的富集和分布[J]. 河南师范大学学报(自然科学版), 2004, 32(4): 66-69 |
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| 作者姓名： | 朱桂芬 王学锋 |
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| 作者单位： | 河南师范大学,化学与环境科学学院,河南省环境污染控制重点实验室,河南,新乡,453007;河南师范大学,化学与环境科学学院,河南省环境污染控制重点实验室,河南,新乡,453007 |
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| 摘 要： | 通过露天盆栽实验,研究了轻壤中镉、铅、锌复合污染对油唛菜的影响.结果表明油唛菜根部吸收重金属的能力大于地上部(可食部),油唛菜对重金属的吸收能力顺序为镉>铅>锌;在两个生长期分别采集数据,生长期短时油唛菜吸收重金属的能力强,在后期生长过程中,则表现出稀释效应,同时可交换态重金属随时间向其它形态转变,使得油唛菜对重金属的吸收能力有所下降.
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| 关 键 词： | 重金属 油唛菜 复合污染 |
| 文章编号： | 1000-2367(2004)04-0066-04 |
| 修稿时间： | 2004-05-17 |
Distribution and enrichment of heavy-metals of Cd,Pb and Zn in greengrocery |
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| ZHU Gui-fen,WANG Xue-feng. Distribution and enrichment of heavy-metals of Cd,Pb and Zn in greengrocery[J]. Journal of Henan Normal University(Natural Science), 2004, 32(4): 66-69 |
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| Authors: | ZHU Gui-fen WANG Xue-feng |
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| Abstract: | Pot experiment was conducted to study Cd,Zn and Pb compound effects on phytotoxicity and accumulation of greengrocery grown in light soil. The result showed the effect order of heavy metals was Cd>Zn>Pb,and the concentration of heavy-metals in root was higher than that in leaves.Sample were picked in two different time,it showed that the absorbency was stronger in short time,as time went on, it was diluted,the form of heavy-metals changed,so the concentration was reduced.The absorbency of heavy-metals was reduced also. |
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| Keywords: | heavy-metals greengrocery compound pollution |
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