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 |
DOI | 10.1007/s12665-010-0515-5 |
收录类别 | SCI |
语种 | 英语 |
引用统计 | |
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. |
条目包含的文件 | ||||||
文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
Dominants and accumu(493KB) | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | 请求全文 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论