IOCAS-IR  > 海洋生态与环境科学重点实验室
Environmental evolution records reflected by radionuclides in the sediment of coastal wetlands: A case study in the Yellow River Estuary wetland
Wang, Qidong1,2; Song, Jinming1; Li, Xuegang1; Yuan, Huamao1; Li, Ning1; Cao, Lei1
2016-10-01
Source PublicationJOURNAL OF ENVIRONMENTAL RADIOACTIVITY
Volume162Pages:87-96
SubtypeArticle
AbstractVertical profiles of environmental radionuclides (Pb-210, Cs-137, U-238, Th-232, Ra-226 and K-40) in a sediment core (Y1) of the Yellow River Estuary wetland were investigated to assess whether environmental evolutions in the coastal wetland could be recorded by the distributions of radionuclides. Based on Pb-210 and Cs-137 dating, the average sedimentation rate of core 11 was estimated to be 1.0 cm y(-1). Vertical,, distributions of natural radionuclides ((238)u Th-232 Ra-226 and K-40) changed dramatically, reflecting great changes in sediment input. Concentrations of U-238, Th-232, Ra-226 and K-40 all had significant positive relationships with organic matter and clay content, but their distributions were determined by different factors. Factor analysis showed that U-238 was determined by the river sediment input while Ra-226 was mainly affected by the seawater erosion. Environmental changes such as river channel migrations and sediment discharge variations could always cause changes in the concentrations of radionuclides. High concentrations of U-238 and Ra-226 were consistent with high accretion rate. Frequent seawater intrusion decreased the concentration of Ra-226 significantly. The value of U-238,(226) Ra tended to be higher when the sedimentation rate was low and tide intrusion was frequent. In summary, environmental evolutions in the estuary coastal wetland could be recorded by the vertical profiles of natural radionuclides. (C) 2016 Elsevier Ltd. All rights reserved.
KeywordRadionuclides Vertical Distribution Environmental Evolution Wetland Sediments Yellow River Estuary
DOI10.1016/j.jenvrad.2016.05.015
Indexed BySCI
Language英语
WOS IDWOS:000390183000011
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.qdio.ac.cn/handle/337002/136250
Collection海洋生态与环境科学重点实验室
海洋环流与波动重点实验室
Affiliation1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Ecol & Environm Sci, 7 Nanhai Rd, Qingdao 266071, Shandong, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Wang, Qidong,Song, Jinming,Li, Xuegang,et al. Environmental evolution records reflected by radionuclides in the sediment of coastal wetlands: A case study in the Yellow River Estuary wetland[J]. JOURNAL OF ENVIRONMENTAL RADIOACTIVITY,2016,162:87-96.
APA Wang, Qidong,Song, Jinming,Li, Xuegang,Yuan, Huamao,Li, Ning,&Cao, Lei.(2016).Environmental evolution records reflected by radionuclides in the sediment of coastal wetlands: A case study in the Yellow River Estuary wetland.JOURNAL OF ENVIRONMENTAL RADIOACTIVITY,162,87-96.
MLA Wang, Qidong,et al."Environmental evolution records reflected by radionuclides in the sediment of coastal wetlands: A case study in the Yellow River Estuary wetland".JOURNAL OF ENVIRONMENTAL RADIOACTIVITY 162(2016):87-96.
Files in This Item:
File Name/Size DocType Version Access License
Environmental evolut(1523KB)期刊论文出版稿开放获取CC BY-NC-SAView Application Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Wang, Qidong]'s Articles
[Song, Jinming]'s Articles
[Li, Xuegang]'s Articles
Baidu academic
Similar articles in Baidu academic
[Wang, Qidong]'s Articles
[Song, Jinming]'s Articles
[Li, Xuegang]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Wang, Qidong]'s Articles
[Song, Jinming]'s Articles
[Li, Xuegang]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Environmental evolution records reflected by radionuclides in the sediment of coastal wetlands_ A case study in the Yellow River Estuary wetland.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.