IGGCAS OpenIR  > 新生代地质与环境院重点实验室
Drought Cycles Over the Last 8,200 Years Recorded in Maar Lake Twintaung, Myanmar
Chu, Guoqiang1,2,3; Zhu, Qingzeng1; Sun, Qing4; Su, Youliang5; Xie, Manman1,4; Zaw, Than6; Sein, Kyaing6
2020-05-16
Source PublicationJOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
ISSN2169-897X
Volume125Issue:9Pages:12
AbstractThe tropical Asian regions are particularly prone to catastrophic droughts due to high temperature and evaporation and their sensitivity to variable oceanic-atmospheric circulation. The extent to which future global warming may intensify droughts in this populous region is a matter of utmost concern. Palaeoclimatic data can help inform scientists learn more about the temporal patterns and drivers of monsoon change over geological timescales. In this paper, we present a new 8,200 year biomarker record preserved in the annually laminated sediments of Maar Lake Twintaung, Myanmar. The delta C-13(27-35) sedimentary record is mainly derived from leaf wax lipids in the lake catchment, which is presently dominated by C-3 vegetation in the modern lake catchment. The delta C-13(27-35) is mainly regulated by plant physiological and biochemical responses to drought stress and, as such, can be used as a proxy of past changes in moisture. The delta C-13(27-35) record reveals distinct decadal-to-centennial-scale droughts superimposed on a trend of gradually decreasing summer monsoon intensity from the mid-Holocene to late Holocene. Within the limits of the dating uncertainties, these decadal-to-centennial-scale droughts are found to be well correlated with the southward shift of the Intertropical Convergence Zone. It highlights thepimportance of the Intertropical Convergence Zone shift (tropical monsoon trough) in regulating monsoon rainfall in the region. In addition, most of the droughts are likely to be linked with active volcanism and solar minima and suggest a coupled process between external drivers and internal climate dynamics.
Keywordleaf wax n-alkanes Maar Lake Twintaung annually laminated sediments compound-specific carbon isotope droughts Holocene
DOI10.1029/2019JD032225
Funding OrganizationNational Key Program of China ; National Key Program of China ; National Key Program of China ; National Key Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Program of China ; National Key Program of China ; National Key Program of China ; National Key Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Program of China ; National Key Program of China ; National Key Program of China ; National Key Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Program of China ; National Key Program of China ; National Key Program of China ; National Key Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
WOS KeywordHOLOCENE ASIAN MONSOON ; CLIMATE HISTORY ; YUNNAN PROVINCE ; SUMMER MONSOON ; NORTH CHINA ; N-ALKANES ; RECONSTRUCTION ; PRECIPITATION ; VARIABILITY ; PLEISTOCENE
Language英语
Funding ProjectNational Key Program of China[2017YFA0603400] ; National Natural Science Foundation of China[41672174] ; National Natural Science Foundation of China[41811530085] ; National Natural Science Foundation of China[41877301]
Funding OrganizationNational Key Program of China ; National Key Program of China ; National Key Program of China ; National Key Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Program of China ; National Key Program of China ; National Key Program of China ; National Key Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Program of China ; National Key Program of China ; National Key Program of China ; National Key Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Program of China ; National Key Program of China ; National Key Program of China ; National Key Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
WOS Research AreaMeteorology & Atmospheric Sciences
WOS SubjectMeteorology & Atmospheric Sciences
WOS IDWOS:000536605500010
PublisherAMER GEOPHYSICAL UNION
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/96698
Collection新生代地质与环境院重点实验室
Corresponding AuthorChu, Guoqiang; Sun, Qing
Affiliation1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Cenozo Geol & Environm, Beijing, Peoples R China
2.CAS Ctr Excellence Life & Paleoenvironm, Beijing, Peoples R China
3.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing, Peoples R China
4.Natl Res Ctr Geoanal, Beijing, Peoples R China
5.China Earthquake Adm, Inst Geophys, Beijing, Peoples R China
6.Myanmar Geosci Soc, Yangon, Myanmar
First Author AffilicationKey Laboratory of Cenozoic Geology and Environment, Chinese Academy of Sciences
Corresponding Author AffilicationKey Laboratory of Cenozoic Geology and Environment, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Chu, Guoqiang,Zhu, Qingzeng,Sun, Qing,et al. Drought Cycles Over the Last 8,200 Years Recorded in Maar Lake Twintaung, Myanmar[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2020,125(9):12.
APA Chu, Guoqiang.,Zhu, Qingzeng.,Sun, Qing.,Su, Youliang.,Xie, Manman.,...&Sein, Kyaing.(2020).Drought Cycles Over the Last 8,200 Years Recorded in Maar Lake Twintaung, Myanmar.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,125(9),12.
MLA Chu, Guoqiang,et al."Drought Cycles Over the Last 8,200 Years Recorded in Maar Lake Twintaung, Myanmar".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 125.9(2020):12.
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