Aging effect on the mobility and bioavailability of copper in soil
文献类型：期刊论文
| 作者 | Lu Anxiang ; Zhang Shuzhen ; Qin Xiangyang ; Wu Wenyong ; Liu Honglu |
| 刊名 | JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA
 |
| 出版日期 | 2009 |
| 卷号 | 21期号:2页码:173-178 |
| 关键词 | aging effect copper mobility bioavailability |
| 中文摘要 | Aging effect on the mobility and bioavailability of copper (Cu) was investigated using a spiked soil with different incubation periods from 3 to 56 d. Wheat was planted and earthworms were cultured separately in the incubated soils. The mobility of Cu in soil was evaluated by a chemical fractionation scheme and the toxicity and bioavailability were assessed by measuring the biomass and Cu concentration in tissues. Results showed that aging had a significant effect on Cu fraction distribution, of which Cu tended to incorporate from the exchangeable into more stable fractions such as the reducible and oxidisable fractions. However, aging had little effect on Cu bioavailabitity to wheat and earthworm. Comparing the soil being incubated for 3 d and 56 d, Cu concentration in wheat roots decreased from 14.5 to 12.8 mg/kg, and no significant changes in Cu concentration were observed in both wheat shoots and earthworms. The Cu concentration was around 2.0 and 50 mg/kg for wheat shoots and earthworms, respectively, irrespective of soil incubation time. The CaCl(2)-extractable Cu had a linear relationship with Cu concentration in wheat roots (R(2) = 0.65, P < 0.05), but no linear relationship can be found for wheat shoots and earthworms. Biological control may be more crucial for Cu accumulation in organism than the changes in soil Cu fraction caused by aging. |
| WOS记录号 | WOS:000263435800007 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/21454]  |
| 专题 | 生态环境研究中心_环境化学与生态毒理学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Lu Anxiang,Zhang Shuzhen,Qin Xiangyang,et al. Aging effect on the mobility and bioavailability of copper in soil[J]. JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,2009,21(2):173-178. |
| APA | Lu Anxiang,Zhang Shuzhen,Qin Xiangyang,Wu Wenyong,&Liu Honglu.(2009).Aging effect on the mobility and bioavailability of copper in soil.JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,21(2),173-178. |
| MLA | Lu Anxiang,et al."Aging effect on the mobility and bioavailability of copper in soil".JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA 21.2(2009):173-178. |
入库方式： OAI收割
来源：生态环境研究中心
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