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Distribution and phytoavailability of heavy metal chemical fractions in artificial soil on rock cut slopes alongside railways
Chen, Zhaoqiong1,2; Ai, Yingwei1; Fang, Chen1; Wang, Kexiu1; Li, Wei3; Liu, Shui4; Li, Chunlin5; Xiao, Jingyao1; Huang, Zhiyu1
Corresponding AuthorAi, Yingwei
2014-05-30
Source PublicationJOURNAL OF HAZARDOUS MATERIALS
ISSN0304-3894
Volume273Pages:165-173
SubtypeArticle
AbstractArtificial soil is often sprayed onto cut slopes alongside railroad tracks to promote revegetation. This study evaluated the heavy metal content and the distribution of heavy metal chemical fractions in the soil, as well as the uptake of heavy metals by plants. The soil at four sites was determined to be considerably contaminated with Cd and Pb. The concentrations of Cd and Pb increased with the length of time the railway had been in use and decreased further away from the railway tracks. Pb primarily existed in reducible form but as residual fractions, whereas Cd was predominantly in exchangeable form. A correlation analysis indicated that pH, organic matter, and total phosphorus levels were important factors affecting the distribution of the heavy metal chemical fractions. The amounts of exchangeable Pb and Cd in the soil were highly correlated with their amounts in the plants sampled, indicating that the exchangeable fraction is a better indication of heavy metal phytoavailability than the total amount of heavy metals in the soil. Bioaccumulation and translocation factors indicated that Indigofera amblyantha had moderate tolerance and bioaccumulation capability for Pb, as did Leucaena leucocephala for Cd. These two plant species can serve as ideal slope remediation plants. (C) 2014 Elsevier B.V. All rights reserved.
KeywordHeavy Metal Artificial Soil Rock Cut Slope Phytoavailability
WOS HeadingsScience & Technology ; Technology ; Life Sciences & Biomedicine
DOI10.1016/j.jhazmat.2014.03.042
WOS Subject ExtendedEngineering ; Environmental Sciences & Ecology
Indexed BySCI
WOS KeywordWHEAT TRITICUM-AESTIVUM ; QINGHAI-TIBET RAILWAY ; RIVER DELTA REGION ; MINE TAILINGS ; CHINA ; ACCUMULATION ; CADMIUM ; LEAD ; CONTAMINATION ; AVAILABILITY
Language英语
WOS SubjectEngineering, Environmental ; Engineering, Civil ; Environmental Sciences
WOS IDWOS:000336821400021
Funding OrganizationNational Science Foundation of China(41171175)
Citation statistics
Cited Times:36[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/9954
Collection中国科学院水利部成都山地灾害与环境研究所
Affiliation1.Sichuan Univ, Coll Life Sci, Key Lab Bioresources & Ecoenvironm, Minist Educ, Chengdu 610064, Sichuan, Peoples R China
2.Chengdu Med Coll, Chengdu 610500, Sichuan, Peoples R China
3.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Sichuan, Peoples R China
4.Shenzhen Tiehan Ecol Environm Ltd Liabil Co, Shenzhen 518040, Peoples R China
5.Qingdao Guanzhong Ecol Ltd Liabil Co, Qingdao 266102, Peoples R China
Recommended Citation
GB/T 7714
Chen, Zhaoqiong,Ai, Yingwei,Fang, Chen,et al. Distribution and phytoavailability of heavy metal chemical fractions in artificial soil on rock cut slopes alongside railways[J]. JOURNAL OF HAZARDOUS MATERIALS,2014,273:165-173.
APA Chen, Zhaoqiong.,Ai, Yingwei.,Fang, Chen.,Wang, Kexiu.,Li, Wei.,...&Huang, Zhiyu.(2014).Distribution and phytoavailability of heavy metal chemical fractions in artificial soil on rock cut slopes alongside railways.JOURNAL OF HAZARDOUS MATERIALS,273,165-173.
MLA Chen, Zhaoqiong,et al."Distribution and phytoavailability of heavy metal chemical fractions in artificial soil on rock cut slopes alongside railways".JOURNAL OF HAZARDOUS MATERIALS 273(2014):165-173.
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