期刊
ENVIRONMENTAL GEOLOGY
卷 58, 期 3, 页码 471-476出版社
SPRINGER
DOI: 10.1007/s00254-008-1519-2
关键词
Lead/zinc mine; Vegetation; Hyperaccumulator; Translocation factor
资金
- National 863'' [2006AA06Z359, 2007AA061001]
- Huo Yingdong Fund [94022]
- Natural Science Foundation of Guangdong Province
A field survey was conducted to identify potential hyperaccumulators of Pb, Zn or Cd in the Beichang Pb/Zn mine outcrop in Yunnan Province, China. The average total concentrations of Pb, Zn, and Cd in the soils were up to 28,438, 5,109, and 52 mg kg(-1), respectively. A total of 68 plant species belonging to 60 genera of 37 families naturally colonizing the outcrop were recorded. According to metal accumulation in the plants and translocation factor (TF), Silene viscidula was identified as potential hyperaccumulator of Pb, Zn, and Cd with mean shoot concentrations of 3,938 mg kg(-1) of Pb (TF = 1.2), 11,155 mg kg(-1) of Zn (TF = 1.8) and 236 mg kg(-1) of Cd (TF = 1.1), respectively; S. gracilicanlis (Pb 3,617 mg kg(-1), TF = 1.2) and Onosma paniculatum (Pb 1,837 mg kg(-1), TF = 1.9) were potential Pb hyperaccumulators. Potentilla griffithii (Zn 8,748 mg kg(-1), TF = 1.5) and Gentiana sp. (Zn 19,710 mg kg(-1), TF = 2.7) were potential Zn hyperaccumulators. Lysimachia deltoides (Cd 212 mg kg(-1), TF = 3.2) was a potential Cd hyperaccumulator. These new plant resources could be used to explore the mechanisms of Pb, Zn and/or Cd hyperaccumulation, and the findings could be applied for the phytoremediation of Pb, Zn and/or Cd-contaminated soils.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据