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Dominants and accumulation of rare earth elements in sediments derived from riparian and depressional marshes
Wang GP (Wang, Guo-Ping)[1,2]; Yu XF (Yu, Xiao-Fei)[1,2]; Wang JA (Wang, Jian)[1]; Zhao HM (Zhao, Hong-Mei)[1]; Bao KS (Bao, Kun-Shan)[1]; Lu XG (Lu, Xian-Guo)[1]
2011-01-30
发表期刊ENVIRONMENTAL EARTH SCIENCES
卷号62期号:1页码:207-216
文章类型期刊论文
摘要

The rare earth elements (REEs) in the sediments of the Xianghai wetlands were measured by inductively coupled plasma spectrometry. The REEs accumulation rates in two sedimentation cores derived from the riparian and depressional marshes were determined by (210)Pb method. The results showed that REEs concentrations in the Xianghai wetland sediments (PREEs, 116 mg kg(-1)) were lower than the corresponding values in Chinese soils (181 mg kg(-1)) and river sediments (PREEs, 158-191 mg kg(-1)). Under alkaline conditions (with pH, 8.2-10.3), the light REEs were more enriched than the heavy REEs. Cerium is the predominant element, and accounts for 30-33% of the total REEs. REEs in the depressional marsh sediments were relatively high (PREEs, 127 vs. 104 mg kg(-1)), especially light REEs contents. A significantly positive correlation was found between the neighboring elements except Pr and Dy. The different types of vertical distribution of REEs between the riparian and the depressional marsh can partly result from long-term differing hydrological regimes. Generally, depressional marsh had accumulated much more REEs than riparian marsh (the mean accumulation rates of Sigma REEs,102.98 vs. 48.89 mu g cm(-2) year(-1)).

关键词Rare earth elements Vertical distribution Accumulation rates Sediments Wetlands
DOI10.1007/s12665-010-0515-5
收录类别SCI
语种英语
引用统计
被引频次:6[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ieecas.cn/handle/361006/10313
专题加速器质谱中心
通讯作者Wang GP (Wang, Guo-Ping)[1,2]
作者单位1.Key Lab of Wetland Ecology and Environment,Northeast Institute of Geography and Agroecology,Chinese Academy of Sciences, Wei-shan Road 3195,Changchun 130012, People’s Republic of China;
2.State Key Laboratory of Loess and Quaternary Geology,Institute of Earth Environment, CAS, Xi’an,People’s Republic of China
推荐引用方式
GB/T 7714
Wang GP ,Yu XF ,Wang JA ,et al. Dominants and accumulation of rare earth elements in sediments derived from riparian and depressional marshes[J]. ENVIRONMENTAL EARTH SCIENCES,2011,62(1):207-216.
APA Wang GP ,Yu XF ,Wang JA ,Zhao HM ,Bao KS ,&Lu XG .(2011).Dominants and accumulation of rare earth elements in sediments derived from riparian and depressional marshes.ENVIRONMENTAL EARTH SCIENCES,62(1),207-216.
MLA Wang GP ,et al."Dominants and accumulation of rare earth elements in sediments derived from riparian and depressional marshes".ENVIRONMENTAL EARTH SCIENCES 62.1(2011):207-216.
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