期刊论文

中文

湖南城市学院学报(自然科学版)

1672-7304

2008

17

4

44-48

10.3969/j.issn.1672-7304.2008.04.014

湖南省科技计划资助项目（2008SK4013）； 湖南省教育厅科研基金资助项目（08C180）；

本校为第一机构

采用野外原位取样系统分析法,研究了南洞庭湖湿地区域内8个样点的蒌蒿对重金属Cd、Pb、Cu在不同部位的富集含量与积累特征,并评价了其作为蔬菜的食用安全性.结果表明,各样点所取蒌蒿对3种重金属均有较高的富集含量和根茎转移系数;可食部分重金属特别是Cd含量严重超标,蒌蒿作为食用蔬菜其安全性较低,不宜直接进行长期大量食用;结合其他研究成果认为蒌蒿可作为耐重金属Cd污染的新型修复植物进行开发利用.

By means of analysis method of sampling in situ on field to study on the concentration, accumulation characteristics and edible safety of heavy metals Cd. Pb. Cu in different growing zone of Aremisia selengensis at eight plots in the South Dongting Lake Wetland. The result showed that in every sampling plot Aremisia selengensis had a higher concentration and transfered coefficient of three heavy metals; The concentration of heavy metals especially Cd was more higher than standard in edible part;The Aremisia selengensis could be used...