YIC-IR  > 中科院海岸带环境过程与生态修复重点实验室
Distribution of heavy metals in soils of the Yellow River Delta: concentrations in different soil horizons and source identification
Li, Yuan1,3; Zhang, Haibo1; Chen, Xiaobing1; Tu, Chen1; Luo, Yongming1,3; Christie, Peter2; Luo, YM (reprint author), Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Zone Environm Proc & Ecol Remedia, Yantai 264003, Shandong, Peoples R China. ymluo@yic.ac.cn
Source PublicationJOURNAL OF SOILS AND SEDIMENTS
ISSN1439-0108
2014-06-01
Volume14Issue:6Pages:1158-1168
KeywordHeavy Metals Metal Accumulation Soil Profiles Yellow River Delta
DOI10.1007/s11368-014-0861-0
Contribution Rank[Li, Yuan; Zhang, Haibo; Chen, Xiaobing; Tu, Chen; Luo, Yongming] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Zone Environm Proc & Ecol Remedia, Yantai 264003, Shandong, Peoples R China; [Christie, Peter] Agrifood & Biosci Inst, Belfast BT9 5PX, Antrim, North Ireland; [Li, Yuan; Luo, Yongming] Chinese Acad Sci Univ, Beijing 100039, Peoples R China
Department中科院海岸带环境过程与生态修复重点实验室
AbstractPurpose The Yellow River Delta, an active land-ocean interaction area, will develop into a large eco-economic region in East China during the coming decade. It is necessary to assess the geochemical features of heavy metals in the soils. The objectives of this research were to evaluate the concentrations and distribution of heavy metals (Cr, Ni, Cu, Zn, Pb, and Cd) in soil profiles of the area and to identify their sources. Materials and methods Horizon samples were collected based on pedogenic features from bottom to top in each profile to a depth of 120 cm and a total of 92 samples were collected. The sampling sites were grouped into four lines from inland to coastal area with three land use types (cotton field, cereal field, and wetland). The concentrations of Cr, Ni, Cu, Zn, Pb, and Cd were measured by inductively coupled plasma-mass spectrometry. Iron oxide fractions in the soil were extracted by oxalate-oxalic acid and dithionite-citrate-bicarbonate. X-ray diffraction (XRD) was used to determine the mineral composition of the soils. Multivariate statistical analysis and historical data were employed to identify the possible sources of these heavy metals. Results and discussion The mean concentrations of heavy metals were elevated along the Yellow River region and in the southern part of the delta; however, they were generally lower than the Chinese guideline values. As for the depth distribution of heavy metals in soil profiles, the maximum values of Cr, Ni, Cu, Zn, and Cd in middle horizon of cotton field were almost twice than those in surface horizon. The iron oxides and XRD analysis indicated that the trace elements accumulation appeared to be related with the contents of crystalline iron oxide and layer silicates. Historical data from suspended sediments of the Yellow River and principal component analysis (PCA) implied that most of the metals (Cr, Ni, Cu, and Zn) were sourced from natural alluviation and sedimentation. Conclusions The Yellow River Delta soils were slightly polluted by heavy metals the Yellow River Delta. The special pedogenic horizon characterized by higher iron oxides and layered silicates minerals in the middle and lower part of the soil profile was found with heavy metals enrichment, which required to be studied further. Suspended sediments transported by the Yellow River were suggested to be one of the major sources for the heavy metals accumulation in the basal soils of this region.; Purpose The Yellow River Delta, an active land-ocean interaction area, will develop into a large eco-economic region in East China during the coming decade. It is necessary to assess the geochemical features of heavy metals in the soils. The objectives of this research were to evaluate the concentrations and distribution of heavy metals (Cr, Ni, Cu, Zn, Pb, and Cd) in soil profiles of the area and to identify their sources.
SubtypeArticle
Indexed BySCI
Language英语
WOS KeywordCHANGJIANG YANGTZE-RIVER ; WETLAND SOILS ; TRACE-METALS ; CHINA ; SEDIMENTS ; CADMIUM ; IRON ; CONTAMINATION ; POLLUTION ; RELEASE
WOS Research AreaGeology ; Agriculture
WOS IDWOS:000336080800015
Citation statistics
Cited Times:31[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.yic.ac.cn/handle/133337/8742
Collection中科院海岸带环境过程与生态修复重点实验室
Corresponding AuthorLuo, YM (reprint author), Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Zone Environm Proc & Ecol Remedia, Yantai 264003, Shandong, Peoples R China. ymluo@yic.ac.cn
Affiliation1.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Zone Environm Proc & Ecol Remedia, Yantai 264003, Shandong, Peoples R China
2.Agrifood & Biosci Inst, Belfast BT9 5PX, Antrim, North Ireland
3.Chinese Acad Sci Univ, Beijing 100039, Peoples R China
Recommended Citation
GB/T 7714
Li, Yuan,Zhang, Haibo,Chen, Xiaobing,et al. Distribution of heavy metals in soils of the Yellow River Delta: concentrations in different soil horizons and source identification[J]. JOURNAL OF SOILS AND SEDIMENTS,2014,14(6):1158-1168.
APA Li, Yuan.,Zhang, Haibo.,Chen, Xiaobing.,Tu, Chen.,Luo, Yongming.,...&Luo, YM .(2014).Distribution of heavy metals in soils of the Yellow River Delta: concentrations in different soil horizons and source identification.JOURNAL OF SOILS AND SEDIMENTS,14(6),1158-1168.
MLA Li, Yuan,et al."Distribution of heavy metals in soils of the Yellow River Delta: concentrations in different soil horizons and source identification".JOURNAL OF SOILS AND SEDIMENTS 14.6(2014):1158-1168.
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