Institutional Repository of Key Laboratory of Coastal Zone Environmental Processes, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences (KLCEP)
| Dynamics of plant metal uptake and metal changes in whole soil and soil particle fractions during repeated phytoextraction | |
Li, Zhu1,2; Wu, Longhua1; Luo, Yongming1,3 ; Christie, Peter4
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| 发表期刊 | PLANT AND SOIL
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| ISSN | 0032-079X |
| 2014 | |
| 卷号 | 374期号:1-2页码:857-869 |
| 关键词 | Zinc/cadmium Hyperaccumulator Successive Cropping Particle-size Metal Availability |
| 产权排序 | [Li, Zhu; Wu, Longhua; Luo, Yongming] Chinese Acad Sci, Key Lab Soil Environm & Pollut Remediat, Inst Soil Sci, Nanjing 210008, Peoples R China; [Li, Zhu] Univ Chinese Acad Sci, Beijing 100049, Peoples R China; [Luo, Yongming] Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China; [Christie, Peter] Agri Food & Biosci Inst, Agri Environm Branch, Belfast BT9 5PX, Antrim, North Ireland |
| 通讯作者 | Wu, LH (reprint author), Chinese Acad Sci, Key Lab Soil Environm & Pollut Remediat, Inst Soil Sci, Nanjing 210008, Peoples R China. lhwu@issas.ac.cn |
| 英文摘要 | Phytoextration of metal polluted soils using hyperaccumulators is a promising technology but requires long term successive cropping. This study investigated the dynamics of plant metal uptake and changes in soil metals over a long remediation time. A soil slightly polluted with metals (S1) was mixed with highly polluted soil (S4) to give two intermediate pollution levels (S2, S3). The four resulting soils were repeatedly phyto-extracted using nine successive crops of Cd/Zn-hyperaccumulator Sedum plumbizincicola over a period of 4 years. Shoot Cd concentration decreased with harvest time in all soils but shoot Zn declined in S1 only. Similar shoot Zn concentrations were found in S2, S3 and S4 although these soils differed markedly in metal availability, and their available metals decreased during phytoextraction. A possible explanation is that plant active acquisition ability served to maintain plant metal uptake. Plant uptake resulted in the largest decrease in the acid-soluble metal fraction followed by reducible metals. Oxidisable and residual fractions were less available to plants. The coarse soil particle fractions made the major contribution to metal decline overall than the fine fractions. Sedum plumbizincicola maintained long term metal uptake and the coarse soil particles played the most important role in phytoextraction.; Phytoextration of metal polluted soils using hyperaccumulators is a promising technology but requires long term successive cropping. This study investigated the dynamics of plant metal uptake and changes in soil metals over a long remediation time. |
| 文章类型 | Article |
| 资助机构 | National Natural Science Foundation of China [40930739]; National High-Technology Research and Development Program of China [2012AA06A204] |
| 收录类别 | SCI |
| 语种 | 英语 |
| 关键词[WOS] | THLASPI-CAERULESCENS ; EXTRACTION PROCEDURES ; ZINC ACCUMULATION ; SEDUM-ALFREDII ; POLLUTED SOILS ; HEAVY-METALS ; CADMIUM ; RHIZOSPHERE ; ZN ; AVAILABILITY |
| 研究领域[WOS] | Agriculture ; Plant Sciences |
| WOS记录号 | WOS:000328849200064 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.yic.ac.cn/handle/133337/6923 |
| 专题 | 中国科学院海岸带环境过程与生态修复重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Soil Environm & Pollut Remediat, Inst Soil Sci, Nanjing 210008, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China 4.Agri Food & Biosci Inst, Agri Environm Branch, Belfast BT9 5PX, Antrim, North Ireland |
| 推荐引用方式 GB/T 7714 | Li, Zhu,Wu, Longhua,Luo, Yongming,et al. Dynamics of plant metal uptake and metal changes in whole soil and soil particle fractions during repeated phytoextraction[J]. PLANT AND SOIL,2014,374(1-2):857-869. |
| APA | Li, Zhu,Wu, Longhua,Luo, Yongming,&Christie, Peter.(2014).Dynamics of plant metal uptake and metal changes in whole soil and soil particle fractions during repeated phytoextraction.PLANT AND SOIL,374(1-2),857-869. |
| MLA | Li, Zhu,et al."Dynamics of plant metal uptake and metal changes in whole soil and soil particle fractions during repeated phytoextraction".PLANT AND SOIL 374.1-2(2014):857-869. |
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