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Phytoaccumulation of heavy metals (Pb, Zn, and Cd) by 10 wetland plant species under different hydrological regimes
Yang, Junxing1; Zheng, Guodi1; Yang, Jun1; Wan, Xiaoming1; Song, Bo2; Cai, Wen1; Guo, Junmei1
2017-10-01
Source PublicationECOLOGICAL ENGINEERING
ISSN0925-8574
Volume107Pages:56-64
Corresponding AuthorWan, Xiaoming(wanxm.06s@igsnrr.ac.cn)
AbstractWetland plants have been widely used in constructed wetlands to remove metal contaminants from water and soil. This study aimed to investigate radial oxygen loss (ROL) rate, metal (Pb, Zn, and Cd) uptake, Fe plaque formation, and their relationships in a pot trial with 10 emergent wetland plant species grown in metal-contaminated soil under flooded and non-flooded conditions. The results showed that biomass, ROL rates, metal (Pb, Zn, and Cd) uptake, and Fe plaque formation on root surfaces and in the rhizospheres of the wetland plant species were remarkably higher under flooded conditions than under non-flooded conditions. Generally, flooding mainly increased metal accumulation in the roots and Fe plaque on the root surface of wetland plant species. The wetland plant species with higher ROL rates had higher biomass, Fe plaque formation and metal adsorption on the roots and in the rhizospheres under flooded conditions. These results suggest the wetland plant species with higher ROL rates, biomass and metal accumulation ability, e.g. C. alternifolius, has the potential for use in phytoremediation of metal-contaminated wetlands. (C) 2017 Elsevier B.V. All rights reserved.
KeywordPhytoaccumulation Hydrological regimes Fe plaque Radial oxygen loss Wetland plant species Rhizosphere
DOI10.1016/j.ecoleng.2017.06.052
WOS KeywordRADIAL OXYGEN LOSS ; ORYZA-SATIVA L. ; IRON PLAQUE ; ROOT POROSITY ; CADMIUM ACCUMULATION ; ARSENIC TOLERANCE ; TYPHA-LATIFOLIA ; ZINC UPTAKE ; RICE ; RHIZOSPHERE
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[30570345] ; National Natural Science Foundation of China[41201312] ; Special Funding for Guangxi 'BaGui scholars' Construction Projects
Funding OrganizationNational Natural Science Foundation of China ; Special Funding for Guangxi 'BaGui scholars' Construction Projects
WOS Research AreaEnvironmental Sciences & Ecology ; Engineering
WOS SubjectEcology ; Engineering, Environmental ; Environmental Sciences
WOS IDWOS:000408676900006
PublisherELSEVIER SCIENCE BV
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/61958
Collection中国科学院地理科学与资源研究所
Corresponding AuthorWan, Xiaoming
Affiliation1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
2.Guilin Univ Technol, Coll Environm Sci & Engn, Guilin 541004, Guangxi, Peoples R China
Recommended Citation
GB/T 7714
Yang, Junxing,Zheng, Guodi,Yang, Jun,et al. Phytoaccumulation of heavy metals (Pb, Zn, and Cd) by 10 wetland plant species under different hydrological regimes[J]. ECOLOGICAL ENGINEERING,2017,107:56-64.
APA Yang, Junxing.,Zheng, Guodi.,Yang, Jun.,Wan, Xiaoming.,Song, Bo.,...&Guo, Junmei.(2017).Phytoaccumulation of heavy metals (Pb, Zn, and Cd) by 10 wetland plant species under different hydrological regimes.ECOLOGICAL ENGINEERING,107,56-64.
MLA Yang, Junxing,et al."Phytoaccumulation of heavy metals (Pb, Zn, and Cd) by 10 wetland plant species under different hydrological regimes".ECOLOGICAL ENGINEERING 107(2017):56-64.
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