Effects of plant arsenic uptake and heavy metals on arsenic distribution in an arsenic-contaminated soil
文献类型：期刊论文
| 作者 | Fayiga, Abioye O.; Ma, Lena Q.; Zhou, Qixing |
| 刊名 | ENVIRONMENTAL POLLUTION
 |
| 出版日期 | 2007-06-01 |
| 卷号 | 147期号:3页码:737-742 |
| 关键词 | Sequential Extraction Arsenic Distribution Metals Soil Ph Arsenic Uptake |
| ISSN号 | 0269-7491 |
| DOI | 10.1016/j.envpol.2006.09.010 |
| 英文摘要 | This study examined the effects of heavy metals and plant arsenic uptake on soil arsenic distribution. Chemical fractionation of an arsenic-contaminated soil spiked with 50 or 200 mg kg(-1) Ni, Zn, Cd or Pb was performed before and after growing the arsenic hyperaccumulator Pteris vittata L for 8 weeks using NH4Cl (water-soluble plus exchangeable, WE-As), NH4F (Al-As), NaOH (Fe-As), and H2SO4 (Ca-As). Arsenic in the soil was present primarily as the recalcitrant forms with Ca-As being the dominant fraction (45%). Arsenic taken up by P. vittata was from all fractions though Ca-As contributed the most (51-71% reduction). After 8 weeks of plant growth, the Al-As and Fe-As fractions were significantly (p < 0.01) greater in the metal-spiked soils than the control, with changes in the WE-As fraction being significantly (p = 0.007) correlated with plant arsenic removal. The plant's ability to solubilize soil arsenic from recalcitrant fractions may have enhanced its ability to hyperaccumulate arsenic. Published by Elsevier Ltd. |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000246922000037 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://210.72.129.5/handle/321005/121287]  |
| 专题 | 中国科学院沈阳应用生态研究所 |
| 通讯作者 | Ma, Lena Q. |
| 作者单位 | 1.Univ Florida, Soil & Water Sci Dept, Gainesville, FL 32601 USA 2.Chinese Acad Sci, Key Lab Terr Ecol Proc, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Fayiga, Abioye O.,Ma, Lena Q.,Zhou, Qixing. Effects of plant arsenic uptake and heavy metals on arsenic distribution in an arsenic-contaminated soil[J]. ENVIRONMENTAL POLLUTION,2007,147(3):737-742. |
| APA | Fayiga, Abioye O.,Ma, Lena Q.,&Zhou, Qixing.(2007).Effects of plant arsenic uptake and heavy metals on arsenic distribution in an arsenic-contaminated soil.ENVIRONMENTAL POLLUTION,147(3),737-742. |
| MLA | Fayiga, Abioye O.,et al."Effects of plant arsenic uptake and heavy metals on arsenic distribution in an arsenic-contaminated soil".ENVIRONMENTAL POLLUTION 147.3(2007):737-742. |
入库方式： OAI收割
来源：沈阳应用生态研究所
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