中国科学院青藏高原研究所机构知识库
Advanced  
ITPCAS OpenIR  > 图书馆  > 期刊论文
学科主题: 地球科学::地质学
题名: Distribution of GDGTs in lake surface sediments on the Tibetan Plateau and its influencing factors
作者: Wang, MD (Wang MingDa)1, 2; Liang, J (Liang Jie)1, 2; Hou, JZ (Hou Juzhi)1; Hu, L (Hu Liang)3
通讯作者: Wang, MD
刊名: SCIENCE CHINA-EARTH SCIENCES
发表日期: 2016
DOI: 10.1007/s11430-015-5214-3
卷: 59, 期:5, 页:961-974
收录类别: SCI
合作性质: 国内
文章类型: Article
英文摘要: Quantitative paleotemperature records are vital not only for verifying and improving the accuracy of climate model simulations, but also for estimating the amplitude of temperature variability under global warming scenarios. The Tibetan Plateau (TP) affects atmospheric circulation patterns due to its unique geographical location and high elevation, and studies of the mechanisms of climate change on the TP are potentially extremely valuable for understanding the relationship of the region with the global climate system. With the development of biomarker-based proxies, it is possible to use lake sediments to quantitatively reconstruct past temperature variability. The source of Glycerol Dialkyl Glycerol Tetraethers (GDGTs) in lake sediments is complex, and their distribution is controlled by both climatic and environmental factors. In this work, we sampled the surface sediments of 27 lakes on the TP and in addition obtained surface soil samples from six of the lake catchments. We analyzed the factors that influence GDGT distribution in the lake sediments, and established quantitative relationship between GDGTs and Mean Annual Air Temperature (MAAT). Our principal findings are as follows: the majority of GDGTs in the lake sediments are bGDGTs, followed by crenarchaeol and GDGT-0. In most of the lakes there were no significant differences between the GDGT distribution within the lake sediments and the soils in the same catchment, which indicates that the contribution of terrestrial material is important. iGDGTs in lake sediments are mainly influenced by water chemistry parameters (pH and salinity), and that in small lakes on the TP, TEX86 may act as a potential proxy for lake pH; however, in contrast bGDGTs in the lake sediments are mainly controlled by climatic factors. Based on the GDGT distribution in the lake sediments, we used proxies (MBT, CBT) and the fractional abundance of bGDGTs (f(abun)) to establish calibrations between GDGTs and MAAT, respectively, which potentially provide the basis for paleoclimatic reconstruction on the TP.
语种: 英语
WOS记录号: WOS:000374966200008
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.itpcas.ac.cn/handle/131C11/7705
Appears in Collections:图书馆_期刊论文

Files in This Item:
File Name/ File Size Content Type Version Access License
V.59(5) 961-974 2016.pdf(1591KB)期刊论文作者接受稿开放获取View 联系获取全文

作者单位: 1.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Tibetan Environm Changes & Land Surface P, Beijing 100101, Peoples R China
2.Univ Chinese Acad Sci, Coll Earth Sci, Beijing 100049, Peoples R China
3.China Univ Geosci, Sch Earth Sci, Wuhan 430074, Peoples R China

Recommended Citation:
Wang, MD ,Liang, J ,Hou, JZ ,et al. Distribution of GDGTs in lake surface sediments on the Tibetan Plateau and its influencing factors[J]. SCIENCE CHINA-EARTH SCIENCES,2016,59(5):961-974.
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Wang, MD (Wang MingDa)]'s Articles
[Liang, J (Liang Jie)]'s Articles
[Hou, JZ (Hou Juzhi)]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Wang, MD (Wang MingDa)]‘s Articles
[Liang, J (Liang Jie)]‘s Articles
[Hou, JZ (Hou Juzhi)]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit
文件名: V.59(5) 961-974 2016.pdf
格式: Adobe PDF
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

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

 

 

Valid XHTML 1.0!
Copyright © 2007-2017  中国科学院青藏高原研究所 - Feedback
Powered by CSpace