期刊
JOURNAL OF HAZARDOUS MATERIALS
卷 162, 期 2-3, 页码 1571-1573出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jhazmat.2008.05.088
关键词
Cd; Contaminated soil; Accumulator
资金
- Hi-tech research and the development program of China [2006AA06Z386]
- Opening Foundation of Ministry of Education Key Laboratory of Environmental Remediation and Ecological Health of China [EREH0710]
- Sino-Russian Joint Research Centeron Natural Resources and Eco-Environmental Sciences
Phytoremediation is a traditional technique that uses vegetation to remediate contaminants from water, soil and sediments. This is a solar-driven, aesthetically pleasing, and cost effective technology. In a former published article, Kalimeris integrifolia Turcz. ex DC. indicated some basic properties of hyperaccumulators for cadmium (Cd). In this study, concentration gradient experiment and sample-analyzing experiments were used to assess whether this plant is a Cd-hyperaccumulator. The results showed the Cd enrichment factor (concentration in plant/soil) and Cd translocation factor (concentration in shoot/root) of K. integrifolia was basically >1 in concentration gradient experiment. Shoot biomass was not reduced significantly (p < 0.05) compared to the control. However, the Cd concentration in K. integrifolia shoots was not higher than 100 mg kg(-1), the threshold concentration fora Cd-hyperaccumulator. Thus, K. integrifolia should only be considered as a Cd-accumulator. In the sample-analyzing experiments conducted in a Pb-Zn mine area and a wastewater irrigation region, K. integrifolia also showed Cd-accumulator properties. Based on these results, K. integrifolia could be identified as a Cd-accumulator. (C) 2008 Elsevier B.V. All rights reserved.
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