期刊
CHEMOSPHERE
卷 260, 期 -, 页码 -出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.chemosphere.2020.127564
关键词
Hyperaccumulation; Solanum nigrum L.; Cd compounds; Phytoremediation
资金
- Natural Science Foundation of China [31870488, 41571300]
- Special Plan in the Major Research & Development of the 13th Five-Year Plan of China [2018YFC1800501, 2016YFD0800802]
- Projects of Shaanxi Province of China [SLGPT2019KF04-02, 2019JM-413, 2018SZS-27-07]
- project of Foreign Experts Bureau of Shaanxi province of China [GDT20186100430B, G20190241001]
This experiment is to explore whether one hyperaccumulator shows the strongly accumulative capacities for low or insoluble Cd compounds in soil. Soil potting experiment was conducted to analyze the accumulation capacity of Solanum nigrum L. for 10 different Cd compounds under two levels. The results clearly indicated: The Cd concentrations of shoots and roots were very high for different Cd compounds in soils even with low or insoluble Cd compounds compared with easily soluble Cd in the treatments of soil contaminated with Cd at different concentrations. Furthermore, the EFs and TFs were all larger than 1 either. Based on the results, although the bioavailabilities of some Cd compounds in soil were lower, S. nigrum's ability to accumulate them was still very strong. Phytoremediation may be widely used to treat with soil contaminated by different cadmium compounds. In addition, the total Cd content is also very important in evaluating the risk of Cd contamination in soil. Thus, phytoextraction is promising. (C) 2020 Elsevier Ltd. All rights reserved.
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