Effect of fertilizers on the Cd uptake of two sedum species (Sedum spectabile Boreau and Sedum aizoon L.) as potential Cd accumulators

doi:10.1016/j.ecoleng.2017.04.069

	Effect of fertilizers on the Cd uptake of two sedum species (Sedum spectabile Boreau and Sedum aizoon L.) as potential Cd accumulators
	Guo, Jun-Mei 1,2; Lei, Mei 1; Yang, Jun-Xing 1; Yang, Jun 1; Wan, Xiao-Ming 1; Chen, Tong-Bin 1; Zhou, Xiao-Yong 1; Gu, Song-Pu 1; Guo, Guang-Hui 1
刊名	ECOLOGICAL ENGINEERING
	2017-09-01
卷号	106 页码:409-414
关键词	Cadmium Phytoremediation Fertilizer Sedum spectabile Boreau Sedum aizoon L
ISSN号	0925-8574
DOI	10.1016/j.ecoleng.2017.04.069
通讯作者	Lei, Mei(leim@igsnrr.ac.cn) ; Yang, Jun-Xing(yangajx@igsnrr.ac.cn)
英文摘要	A pot experiment was conducted to investigate the potential for cadmium (Cd) phytoextraction of two sedum species (Sedum spectabile Boreau and S. aizoon L.), as well as the effects of N, NP, and NPK fertilizers on the Cd uptake of the two sedum species grown in soil contaminated with 2.2 mg center dot kg(-1) Cd for 60 d. Results showed that the Cd concentrations in S. spectabile and S. aizoon tissues ranged within 7.49-14.4 mg center dot kg(-1) in leaves, 5.48-9.69 mg center dot kg(-1) in stems, and 2.38-6.06 mg center dot kg(-1) in roots. Moreover, the biomass and Cd concentrations of S. spectabile tissues were significantly higher than those of S. aizoon, thereby leading to a higher Cd uptake in shoots and bioconcentration factor than S. aizoon. N and NP fertilizers had limited effects on the biomass and Cd phytoextraction efficiency of both sedum species. NPK fertilizers significantly increased the S. spectabile biomass by 21.2% compared with the control (p < 0.05) and greatly improved Cd concentrations in S. spectabile stems by 24.4% and 25.4% compared with N and NP fertilizers (p<0.05), respectively. All these findings indicated that S. spectabile can be used to phytoremediate Cd-contaminated soil, and that NPK fertilizers can improve phytoextraction efficiency. Further studies are warranted to optimize fertilizer-combination ratios and elucidate interaction mechanisms among fertilizers in field experiments. (C) 2017 Elsevier B.V. All rights reserved.
资助项目	Special Scientific Research Fund of Public Welfare Profession of China[201511082-03]
WOS关键词	METAL-CONTAMINATED SOILS ; THLASPI-CAERULESCENS ; ALFREDII HANCE ; CADMIUM ; HYPERACCUMULATOR ; ZINC ; PHYTOEXTRACTION ; PHYTOREMEDIATION ; LEAD ; 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:000405512600043
资助机构	Special Scientific Research Fund of Public Welfare Profession of China
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/62088]
专题	中国科学院地理科学与资源研究所
通讯作者	Lei, Mei; Yang, Jun-Xing
作者单位	1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Ctr Environm Remediat, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Guo, Jun-Mei,Lei, Mei,Yang, Jun-Xing,et al. Effect of fertilizers on the Cd uptake of two sedum species (Sedum spectabile Boreau and Sedum aizoon L.) as potential Cd accumulators[J]. ECOLOGICAL ENGINEERING,2017,106:409-414.
APA	Guo, Jun-Mei.,Lei, Mei.,Yang, Jun-Xing.,Yang, Jun.,Wan, Xiao-Ming.,...&Guo, Guang-Hui.(2017).Effect of fertilizers on the Cd uptake of two sedum species (Sedum spectabile Boreau and Sedum aizoon L.) as potential Cd accumulators.ECOLOGICAL ENGINEERING,106,409-414.
MLA	Guo, Jun-Mei,et al."Effect of fertilizers on the Cd uptake of two sedum species (Sedum spectabile Boreau and Sedum aizoon L.) as potential Cd accumulators".ECOLOGICAL ENGINEERING 106(2017):409-414.