Influence of CaO-activated silicon-based slag amendment on the growth and heavy metal uptake of vetiver grass (Vetiveria zizanioides) grown in multi-metal-contaminated soils

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	Influence of CaO-activated silicon-based slag amendment on the growth and heavy metal uptake of vetiver grass (Vetiveria zizanioides) grown in multi-metal-contaminated soils
	Mu, Jing ; Hu, Zhengyi ; Xie, Zijian ; Huang, Lijuan ; Holm, Peter E.
刊名	ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
	2019-11-01
卷号	26 期号:31 页码:32243-32254
关键词	Vetiver grass Si-based slag amendment Multi-metal-contaminated soils Revegetation Phytoextraction Phytostabilization
ISSN号	0944-1344
英文摘要	Few plant species used for revegetation grow well in multi-metal-contaminated soils. Vetiver grass (Vetiveria zizanioides) is known to be tolerant of heavy metals. Vetiver has been reported to be effective for revegetation and heavy metal phytoextraction by applying targeted amendments due to its large biomass. In this study, a greenhouse vetiver pot experiment and soil incubation were performed to investigate the growth and Cd, Cr, Cu, Pb, and Zn uptake of vetiver grown in multi-metal-contaminated soils treated with a CaO-activated Si-based slag amendment (0, 0.5, 1.0, and 2.0% w/w). The results showed that the effects of slag amendment on plant growth and heavy metal uptake and distribution were dependent on the amendment dosages and metal species. Although vetiver could grow in contaminated soils, its growth was obviously inhibited. The slag amendment enhanced the vetiver growth and the highest biomass (2.62-fold over the control) was determined at a 1.0% amendment rate. The slag amendment improved plant growth by alleviating the toxicity of heavy metals in plants. This result was mainly attributed to the increases in soil pH and citric acid-extractable Si caused by alkaline amendment. The results suggest that vetiver can be applied to remediate multi-metal-contaminated soils in conjunction with the application of CaO-activated Si-based slag amendment.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/42657]
专题	生态环境研究中心_环境水质学国家重点实验室
作者单位	1.Sino Danish Ctr Educ & Res SDC, Beijing, Peoples R China 2.Univ Copenhagen, Dept Plant & Environm Sci, Thorvaldsensvej 40, DK-1871 Frederiksberg, Denmark 3.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 101408, Peoples R China
推荐引用方式 GB/T 7714	Mu, Jing,Hu, Zhengyi,Xie, Zijian,et al. Influence of CaO-activated silicon-based slag amendment on the growth and heavy metal uptake of vetiver grass (Vetiveria zizanioides) grown in multi-metal-contaminated soils[J]. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,2019,26(31):32243-32254.
APA	Mu, Jing,Hu, Zhengyi,Xie, Zijian,Huang, Lijuan,&Holm, Peter E..(2019).Influence of CaO-activated silicon-based slag amendment on the growth and heavy metal uptake of vetiver grass (Vetiveria zizanioides) grown in multi-metal-contaminated soils.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,26(31),32243-32254.
MLA	Mu, Jing,et al."Influence of CaO-activated silicon-based slag amendment on the growth and heavy metal uptake of vetiver grass (Vetiveria zizanioides) grown in multi-metal-contaminated soils".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH 26.31(2019):32243-32254.