干旱区生态环境知识资源中心(Arid): Reconstruction of the Late Holocene climate and environmental history from North Bolgoda Lake, Sri Lanka, using lipid biomarkers and pollen records

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DOI	10.1002/jqs.3196
	Reconstruction of the Late Holocene climate and environmental history from North Bolgoda Lake, Sri Lanka, using lipid biomarkers and pollen records
	Gayantha, Kasun 1; Routh, Joyanto 2; Anupama, Krishnamurthy 3; Lazar, Jean 3; Prasad, Srinivasan 3; Chandrajith, Rohana 4; Roberts, Patrick 5; Gleixner, Gerd 1
通讯作者	Routh, Joyanto
来源期刊	JOURNAL OF QUATERNARY SCIENCE
ISSN	0267-8179
EISSN	1099-1417
出版年	2020
卷号	35 期号:4 页码:514-525
英文摘要	The catastrophic impact and unpredictability of the Indian Ocean Monsoon (IOM) over South Asia are evident from devastating floods, mudslides and droughts in one of the most densely populated regions of the globe. However, our understanding as to how the IOM has varied in the past, as well as its impact on local environments, remains limited. This is particularly the case for Sri Lanka, where erosional landscapes have limited the availability of well-stratified, high-resolution terrestrial archives. Here, we present novel data from an undisturbed sediment core retrieved from the coastal Bolgoda Lake. This includes the presentation of a revised Late Holocene age model as well as an innovative combination of pollen, source-specific biomarkers, and compound-specific stable carbon isotopes of n-alkanes to reconstruct the shifts in precipitation, salinity and vegetation cover. Our record documents variable climate between 3000 years and the present, with arid conditions c. 2334 and 2067 cal a bp. This extreme dry period was preceded and followed by more wet conditions. The high-resolution palaeoenvironmental reconstruction fills a major gap in our knowledge on the ramifications of IOM shifts across South Asia and provides insights during a time of major redistribution of dense human settlements across Sri Lanka.
英文关键词	biomarker carbon isotopes monsoon palaeosalinity pollen
类型	Article
语种	英语
国家	Germany ; Sweden ; India ; Sri Lanka
开放获取类型	Green Published, hybrid
收录类别	SCI-E ; SSCI
WOS记录号	WOS:000520780800001
WOS关键词	MULTI-PROXY RECONSTRUCTION ; ORGANIC GEOCHEMISTRY ; VEGETATION ; VARIABILITY ; MANGROVES ; SEDIMENTS ; KARNATAKA ; INPUT ; COVER ; COAST
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS研究方向	Physical Geography ; Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/315060
作者单位	1.Max Planck Inst Biogeochem, Jena, Germany; 2.Linkoping Univ, Dept Themat Studies Environm Change, Linkoping, Sweden; 3.French Inst Pondicherry, Dept Ecol, Lab Palynol & Paleoecol, Pondicherry, India; 4.Univ Peradeniya, Dept Geol, Fac Sci, Peradeniya, Sri Lanka; 5.Max Planck Inst Sci Human Hist, Jena, Germany
推荐引用方式 GB/T 7714	Gayantha, Kasun,Routh, Joyanto,Anupama, Krishnamurthy,et al. Reconstruction of the Late Holocene climate and environmental history from North Bolgoda Lake, Sri Lanka, using lipid biomarkers and pollen records[J],2020,35(4):514-525.
APA	Gayantha, Kasun.,Routh, Joyanto.,Anupama, Krishnamurthy.,Lazar, Jean.,Prasad, Srinivasan.,...&Gleixner, Gerd.(2020).Reconstruction of the Late Holocene climate and environmental history from North Bolgoda Lake, Sri Lanka, using lipid biomarkers and pollen records.JOURNAL OF QUATERNARY SCIENCE,35(4),514-525.
MLA	Gayantha, Kasun,et al."Reconstruction of the Late Holocene climate and environmental history from North Bolgoda Lake, Sri Lanka, using lipid biomarkers and pollen records".JOURNAL OF QUATERNARY SCIENCE 35.4(2020):514-525.