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Influence of the ratio of planktonic to benthic diatoms on lacustrine organic matter delta C-13 from Erlongwan maar lake, northeast China

文献类型：期刊论文

作者Wang, Luo1; Mackay, Anson W.2; Leng, Melanie J.3,4; Rioual, Patrick1; Panizzo, Virginia N.2; Lu, Houyuan1; Gu, Zhaoyan1; Chu, Guoqiang1; Han, Jingtai1; Kendrick, Christopher P.4
刊名ORGANIC GEOCHEMISTRY
出版日期2013
卷号54页码:62-68
ISSN号0146-6380
DOI10.1016/j.orggeochem.2012.09.010
文献子类Article
英文摘要Carbon isotope ratio (delta C-13(org)) values of organic matter in lake sediments are commonly used to reconstruct environmental change, but the factors which influence change are varied and complex. Here we report delta C-13 values for sediments from Erlongwan maar lake in northeast China. In this record, changes in delta C-13 cannot be explained by simple changes in aquatic productivity. Instead, values were likely influenced by differences in the ratio between planktonic and benthic algae, as indicated by the remains of diatoms. This is because the variation of delta C-13(org) in algae from different habitats is controlled by the thickness of the diffusive boundary layer, which is dependent on the turbulence of the water. Compared with benthic algae, which grow in relatively still water, pelagic algae are exposed to greater water movement. This is known to dramatically reduce the thickness of the boundary layer and was found to cause even more severe delta C-13 depletion. In Erlongwan maar lake, low values were linked to the dominance of planktonic diatoms during the period commonly known as the Medieval Warm Period. Values gradually increased with the onset of the Little Ice Age, which we interpret as being driven by an increase in the proportion of benthic taxa, due to effect of the colder climate. The increase in planktonic diatoms at the end of the Little Ice Age, linked to higher temperature and a reduction in ice cover, resulted in a further decline in delta C-13(org). (C) 2012 Elsevier Ltd. All rights reserved.
WOS关键词NE CHINA ; SEDIMENTS ; PRODUCTIVITY ; ONTARIO ; RECORDS ; CANADA ; CARBON ; KA
WOS研究方向Geochemistry & Geophysics
语种英语
WOS记录号WOS:000314458000004
出版者PERGAMON-ELSEVIER SCIENCE LTD
资助机构National Basic Research Program of China (973 Program)(2010CB950201) ; National Basic Research Program of China (973 Program)(2010CB950201) ; NSFC(40572105 ; NSFC(40572105 ; UCL Simon Li Fund ; UCL Simon Li Fund ; Ensis Trust Fund ; Ensis Trust Fund ; 40971121) ; 40971121) ; National Basic Research Program of China (973 Program)(2010CB950201) ; National Basic Research Program of China (973 Program)(2010CB950201) ; NSFC(40572105 ; NSFC(40572105 ; UCL Simon Li Fund ; UCL Simon Li Fund ; Ensis Trust Fund ; Ensis Trust Fund ; 40971121) ; 40971121) ; National Basic Research Program of China (973 Program)(2010CB950201) ; National Basic Research Program of China (973 Program)(2010CB950201) ; NSFC(40572105 ; NSFC(40572105 ; UCL Simon Li Fund ; UCL Simon Li Fund ; Ensis Trust Fund ; Ensis Trust Fund ; 40971121) ; 40971121) ; National Basic Research Program of China (973 Program)(2010CB950201) ; National Basic Research Program of China (973 Program)(2010CB950201) ; NSFC(40572105 ; NSFC(40572105 ; UCL Simon Li Fund ; UCL Simon Li Fund ; Ensis Trust Fund ; Ensis Trust Fund ; 40971121) ; 40971121)
源URL[http://ir.iggcas.ac.cn/handle/132A11/87046]  
专题中国科学院地质与地球物理研究所
通讯作者Wang, Luo
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Cenozo Geol & Environm, Beijing 100029, Peoples R China
2.UCL, Dept Geog, Environm Change Res Ctr, London WC1E 6BT, England
3.Univ Leicester, Dept Geol, Leicester LE1 7RH, Leics, England
4.British Geol Survey, NERC Isotope Geosci Lab, Keyworth NG12 5GG, Notts, England
推荐引用方式
GB/T 7714		 Wang, Luo,Mackay, Anson W.,Leng, Melanie J.,et al. Influence of the ratio of planktonic to benthic diatoms on lacustrine organic matter delta C-13 from Erlongwan maar lake, northeast China[J]. ORGANIC GEOCHEMISTRY,2013,54:62-68.
APA Wang, Luo.,Mackay, Anson W..,Leng, Melanie J..,Rioual, Patrick.,Panizzo, Virginia N..,...&Kendrick, Christopher P..(2013).Influence of the ratio of planktonic to benthic diatoms on lacustrine organic matter delta C-13 from Erlongwan maar lake, northeast China.ORGANIC GEOCHEMISTRY,54,62-68.
MLA Wang, Luo,et al."Influence of the ratio of planktonic to benthic diatoms on lacustrine organic matter delta C-13 from Erlongwan maar lake, northeast China".ORGANIC GEOCHEMISTRY 54(2013):62-68.

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来源：地质与地球物理研究所

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