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Effect of fertilizers on the Cd uptake of two sedum species (Sedum spectabile Boreau and Sedum aizoon L.) as potential Cd accumulators
Guo, Jun-Mei1,2; Lei, Mei1; Yang, Jun-Xing1; Yang, Jun1; Wan, Xiao-Ming1; Chen, Tong-Bin1; Zhou, Xiao-Yong1; Gu, Song-Pu1; Guo, Guang-Hui1
2017-09-01
Source PublicationECOLOGICAL ENGINEERING
ISSN0925-8574
Volume106Pages:409-414
Corresponding AuthorLei, Mei(leim@igsnrr.ac.cn) ; Yang, Jun-Xing(yangajx@igsnrr.ac.cn)
AbstractA 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.
KeywordCadmium Phytoremediation Fertilizer Sedum spectabile Boreau Sedum aizoon L
DOI10.1016/j.ecoleng.2017.04.069
WOS KeywordMETAL-CONTAMINATED SOILS ; THLASPI-CAERULESCENS ; ALFREDII HANCE ; CADMIUM ; HYPERACCUMULATOR ; ZINC ; PHYTOEXTRACTION ; PHYTOREMEDIATION ; LEAD ; RHIZOSPHERE
Indexed BySCI
Language英语
Funding ProjectSpecial Scientific Research Fund of Public Welfare Profession of China[201511082-03]
Funding OrganizationSpecial Scientific Research Fund of Public Welfare Profession of China
WOS Research AreaEnvironmental Sciences & Ecology ; Engineering
WOS SubjectEcology ; Engineering, Environmental ; Environmental Sciences
WOS IDWOS:000405512600043
PublisherELSEVIER SCIENCE BV
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/62089
Collection中国科学院地理科学与资源研究所
Corresponding AuthorLei, Mei; Yang, Jun-Xing
Affiliation1.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
Recommended Citation
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.
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