Phytoaccumulation of heavy metals (Pb, Zn, and Cd) by 10 wetland plant species under different hydrological regimes

doi:10.1016/j.ecoleng.2017.06.052

	Phytoaccumulation of heavy metals (Pb, Zn, and Cd) by 10 wetland plant species under different hydrological regimes
	Yang, Junxing 1; Zheng, Guodi 1; Yang, Jun 1; Wan, Xiaoming 1; Song, Bo 2; Cai, Wen 1; Guo, Junmei 1
刊名	ECOLOGICAL ENGINEERING
	2017-10-01
卷号	107 页码:56-64
关键词	Phytoaccumulation Hydrological regimes Fe plaque Radial oxygen loss Wetland plant species Rhizosphere
ISSN号	0925-8574
DOI	10.1016/j.ecoleng.2017.06.052
通讯作者	Wan, Xiaoming(wanxm.06s@igsnrr.ac.cn)
英文摘要	Wetland 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.
资助项目	National Natural Science Foundation of China[30570345] ; National Natural Science Foundation of China[41201312] ; Special Funding for Guangxi 'BaGui scholars' Construction Projects
WOS关键词	RADIAL OXYGEN LOSS ; ORYZA-SATIVA L. ; IRON PLAQUE ; ROOT POROSITY ; CADMIUM ACCUMULATION ; ARSENIC TOLERANCE ; TYPHA-LATIFOLIA ; ZINC UPTAKE ; RICE ; RHIZOSPHERE
WOS研究方向	Environmental Sciences & Ecology ; Engineering
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000408676900006
资助机构	National Natural Science Foundation of China ; Special Funding for Guangxi 'BaGui scholars' Construction Projects
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/61957]
专题	中国科学院地理科学与资源研究所
通讯作者	Wan, Xiaoming
作者单位	1.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
推荐引用方式 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.