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Position: Home > Articles > Absorption and Accumulation of Heavy Metals by Plants in Poyang Lake Wetland Journal of Agro-Environment Science 2008,27 (06) 299-304

鄱阳湖湿地22种植物重金属富集能力分析

作  者:
李鸣;吴结春;李丽琴
单  位:
北京市房山区实验中学;北京水怡环境工程有限公司;南昌大学教育部鄱阳湖湖泊生态与生物资源利用实验室
关键词:
鄱阳湖湿地;重金属;积累植物;筛选
摘  要:
针对目前鄱阳湖重金属积累植物缺乏研究,采用野外采样系统分析法,对鄱阳湖湿地22种杂草植物进行Cu、Pb、Zn、Cd积累能力的初步系统研究,研究结果表明:鄱阳湖湿地已受到重金属的不同程度污染。灰化苔草(Carex cinerascens Kukenth.)对Pb的富集能力强;飞廉(Carduus crispus L.)和小窃衣[Torilis japonica(Houtt.)]对Zn的富集系数和转移系数都大于1,且叶部Zn含量大;南荻(Miscanthussacchariflorus)、一年逢(Erigeron annuus)、飞廉、鼠曲草(Herba GnapHaii Affinis)具有重金属Cd富集植物的基本特征。此6种植物可以作为鄱阳湖湿地重金属污染修复植物的选择对象,其进一步研究的价值很大。
译  名:
Absorption and Accumulation of Heavy Metals by Plants in Poyang Lake Wetland
作  者:
LI Ming1,WU Jie-chun2, LI Li-qin3 (1. Key Laboratory of Poyang Lake Ecology and Bioresource Utilization of MOE, Nanchang University, Nanchang 330031, China; 2. Beijing Watersoul Evironmental Engineering CO.,LTD, Beijing 102300, China;3. Fangshan Experimental High School, Beijing 102400, China)
关键词:
Poyang Lake wetland; heavy metals; accumulation plant; selection
摘  要:
This paper focus on the absorption and accumulation of heavy metals lead, zinc, copper and cadmium by 22 plant species in the Poyang Lake, by the view of the current lack of research on plant accumulation of heavy metals by Field Sampling System. The results showed that: the Poyang Lake wetland had been polluted by heavy metals at different levels; Carex cinerascens Kukenth. had a higher capability of absorbing and accumulating on Pb. The Zn bioconcentration factor and transport coefficient of Carduus crispus L. and Torilis japonica (Houtt.) were greater than 1, and Zn concentrations in the leaves. Miscanthussacchariflorus, Erigeron annuus, Carduus crispus L. and Herba GnapHaii Affinis possessed basic characteristics of accumulation on Cd. These six kinds of plants can be used as Poyang Lake wetland plant rehabilitation of heavy metal pollution of choice, the great value of further study.

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