IEECAS OpenIR  > 加速器质谱中心
Concentration and distributions of fatty acids in algae, submerged plants and terrestrial plants from the northeastern Tibetan Plateau
Liu, Hu1,2; Liu, Weiguo1
2017-11-01
Source PublicationORGANIC GEOCHEMISTRY
Volume113Issue:2017Pages:17-26
SubtypeArticle
AbstractWe systematically investigated the concentration and distributions of saturated fatty acids (FAs) in 66 submerged plants (including 48 Potamogeton, 7 Myriophyllum and 11 Ruppia), 59 algae (including 26 Chara, 20 Cladophora and 13 Spirogyra) and 32 terrigenous plants from 18 lakes on the northeastern Tibetan Plateau. The results indicate that C-14-C-32 FAs in algae, submerged plants and terrigenous plants were dominated mainly by C-16 and C-20-C-32. FAs in algae and submerged plants were predominantly C-24, but also contained a relatively high abundance of C-26. The submerged plants had high C-26-C-32 concentration, with average values of 216 lg/g for Potamogeton, 52 lg/g for Myriophyllum and 134 lg/g for Ruppia, close to those of terrigenous plants (avg. 161 lg/g). Algae exhibited low C-26-C-32 FA concentration, with mean values of 7 lg/g for Chara, 8 lg/g for Cladophora and 18 lg/g for Spirogyra. The C-26-C-32 FAs in algae and submerged plants accounted for a large proportion of C-20-C-32, yielding average ratios (C-26-C-32 vs. C-20-C-32) of 33, 35, 31, 15, 19 and 23% for Potamogeton, Myriophyllum, Ruppia, Chara, Cladophora and Spirogyra, respectively. Therefore, the contribution of submerged plant C-26-C-32 FAs to lake sediments should be considered due to their high concentration, whereas the influence of algae was minor. Meanwhile, by comparing the values of average chain length (ACL), alga/terrigenous ratio (ATR) and submerged/terrestrial ratio (STR), we found that ACL14-32 and ATR could be used to distinguish algal FAs from those of other plants and that STR could be used to differentiate FA sources from submerged and terrestrial plants. Thus, we suggest that using specific chain lengths to determine source inputs is not adequate when applying sedimentary FAs for paleoclimatic reconstruction, while ACL 14-32, ATR and STR may aid in determining FA sources in sedimentary records. (C) 2017 Elsevier Ltd. All rights reserved.
KeywordFatty Acids Terrestrial Plants Submerged Plants Algae Tibetan Plateau
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1016/j.orggeochem.2017.08.008
WOS KeywordN-ALKYL LIPIDS ; LAKE DONGGI CONA ; ORGANIC GEOCHEMISTRY ; LACUSTRINE SEDIMENTS ; ISOTOPIC COMPOSITION ; CLIMATE VARIABILITY ; HYDROGEN ISOTOPES ; ALKANOIC ACIDS ; CUTICULAR WAX ; EAST-AFRICA
Indexed BySCI
Language英语
WOS Research AreaGeochemistry & Geophysics
WOS SubjectGeochemistry & Geophysics
WOS IDWOS:000414812800003
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/5389
Collection加速器质谱中心
Affiliation1.Chinese Acad Sci, State Key Lab Loess & Quaternary Geol, Inst Earth Environm, Xian 710061, Shaanxi, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Liu, Hu,Liu, Weiguo. Concentration and distributions of fatty acids in algae, submerged plants and terrestrial plants from the northeastern Tibetan Plateau[J]. ORGANIC GEOCHEMISTRY,2017,113(2017):17-26.
APA Liu, Hu,&Liu, Weiguo.(2017).Concentration and distributions of fatty acids in algae, submerged plants and terrestrial plants from the northeastern Tibetan Plateau.ORGANIC GEOCHEMISTRY,113(2017),17-26.
MLA Liu, Hu,et al."Concentration and distributions of fatty acids in algae, submerged plants and terrestrial plants from the northeastern Tibetan Plateau".ORGANIC GEOCHEMISTRY 113.2017(2017):17-26.
Files in This Item:
File Name/Size DocType Version Access License
Concentration and di(3476KB)期刊论文出版稿开放获取CC BY-NC-SAApplication Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Liu, Hu]'s Articles
[Liu, Weiguo]'s Articles
Baidu academic
Similar articles in Baidu academic
[Liu, Hu]'s Articles
[Liu, Weiguo]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Liu, Hu]'s Articles
[Liu, Weiguo]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

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