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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

文献类型：期刊论文

作者Guo, Jun-Mei1,2; Lei, Mei2; Yang, Jun-Xing2; Yang, Jun2; Wan, Xiao-Ming2; Chen, Tong-Bin2; Zhou, Xiao-Yong2; Gu, Song-Pu2; Guo, Guang-Hui2
刊名ECOLOGICAL ENGINEERING
出版日期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
DOI10.1016/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.
WOS关键词METAL-CONTAMINATED SOILS ; THLASPI-CAERULESCENS ; ALFREDII HANCE ; CADMIUM ; HYPERACCUMULATOR ; ZINC ; PHYTOEXTRACTION ; PHYTOREMEDIATION ; LEAD ; RHIZOSPHERE
资助项目Special Scientific Research Fund of Public Welfare Profession of China[201511082-03]
WOS研究方向Environmental Sciences & Ecology ; Engineering
语种英语
WOS记录号WOS:000405512600043
出版者ELSEVIER SCIENCE BV
资助机构Special Scientific Research Fund of Public Welfare Profession of China
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.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Ctr Environm Remediat, Beijing 100101, 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.

入库方式： OAI收割

来源：地理科学与资源研究所

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