Root-Induced Changes of pH, Eh, Fe(II) and Fractions of Pb and Zn in Rhizosphere Soils of Four Wetland Plants with Different Radial Oxygen Losses
文献类型：SCI/SSCI论文
| 作者 | Yang J. X. ; Liu Y. ; Ye Z. H. |
| 发表日期 | 2012 |
| 关键词 | heavy metal iron oxidation mobility factor plaque rhizobox induced iron oxidation trin ex steudel oryza-sativa l. typha-latifolia phragmites-australis lowland rice waterlogged soils cadmium tolerance heavy-metals zinc uptake |
| 英文摘要 | A rhizobox experiment was conducted to compare iron (Fe) oxidation and changes of pH, redox potential (Eh) and fractions of zinc (Zn) and lead (Pb) in rhizosphere and non-rhizosphere soils of four emergent-rooted wetland plants (Echinodorus macrophyllus, Eleocharis geniculata, Hydrocotyle vulgaris and Veronica serpyllifolia) with different radial oxygen loss (ROL) from roots. The results indicated that all these wetland plants decreased pH and concentration of Fe(II) but increased the Eh in the rhizosphere soils. Pb and Zn were transformed from unstable fractions to more stable fractions in the rhizosphere soils, so decreasing their potential metal mobility factors (MF). Among the four plants, E. macrophyllus, with the highest ROL and root biomass, possessed the greatest ability in formation of Fe plaque and in the reduction of heavy metal MFs in the rhizosphere soil. Wetland plants, with higher ROLs and root biomass, may thus be effective in decreasing potential long-term heavy metal bioavailabilities. |
| 出处 | Pedosphere |
| 卷 | 22 |
| 期 | 4 |
| 页 | 518-527 |
| 收录类别 | SCI |
| 语种 | 英语 |
| ISSN号 | 1002-0160 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/30708]  |
| 专题 | 地理科学与资源研究所_历年回溯文献 |
| 推荐引用方式 GB/T 7714 | Yang J. X.,Liu Y.,Ye Z. H.. Root-Induced Changes of pH, Eh, Fe(II) and Fractions of Pb and Zn in Rhizosphere Soils of Four Wetland Plants with Different Radial Oxygen Losses. 2012. |
入库方式： OAI收割
来源：地理科学与资源研究所
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