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Paleohydrological processes revealed by n-alkane dD in lacustrine sediments of Lake Pumoyum Co, southern Tibetan Plateau, and their response to climate changes during the past 18.5 cal ka
Wang, Y (Wang, Yong)1,2; Zhu, LP (Zhu, Liping)1,3; Wang, JB (Wang, Junbo)1,3; Ju, JT (Ju, Jianting)1; Peng, P (Peng, Ping)1; Lin, X (Lin, Xiao)4; Hu, JF (Hu, Jianfang)5; Nishimura, M (Nishimura, Mitsugu)6; Wang, Y; Zhu, LP
Source PublicationJOURNAL OF PALEOLIMNOLOGY
2016
Volume56Issue:2-3Pages:223-238
DOI10.1007/s10933-016-9909-z
AbstractIn this study, compound-specific hydrogen isotope values of n-alkanes (n-alkane delta D) in a sediment core that dates to 18.5 cal ka BP were used to reconstruct the paleohydrological processes that couple glacial meltwater and precipitation at Lake Pumoyum Co, on the southern Tibetan Plateau. The lowest lake level, from 18.5 to 15.0 cal ka BP, may reflect both less glacial meltwater and less precipitation entering the lake. Glacial meltwater generally increased from 15.0 to 7.2 cal ka BP and decreased after 7.2 cal ka BP, whereas precipitation generally increased from 15.0 to 10.2 cal ka BP, decreased from 10.2 to 7.2 cal ka BP, then remained stable and moderate to the present. Comparisons of our results with records in adjacent areas and beyond suggest that the glacial meltwater supply during the past 15 cal ka corresponds well with changes in the Indian Summer Monsoon (ISM), which are driven by summer insolation at millennial time scales, whereas the precipitation does not match well with ISM changes during the Holocene. Therefore, paleohydrological processes at Lake Pumoyum Co have shown complex responses to climate change. Overall, our results emphasize that reconstruction of paleohydrological processes of lakes on the Tibetan Plateau should be carried out with caution because of glacial meltwater input.
Subject Area自然地理学
WOS IDWOS:000383989300009
Language英语
Indexed BySCI
KeywordSummer Monsoon Variability Hydrogen Isotope Ratios Delta-d Values Nam-co Environmental-changes Stable-isotopes Paleoclimatic Changes Hydrological Changes High-resolution Indian Monsoon
Cooperation Status国际
Department环境
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itpcas.ac.cn/handle/131C11/7596
Collection图书馆
Corresponding AuthorWang, Y; Zhu, LP
Affiliation1.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Tibetan Environm Changes & Land Surface P, Bldg 3,Courtyard 16,Lin Cui Rd, Beijing 100101, Peoples R China
2.Anhui Normal Univ, Coll Terr Resources & Tourism, Wuhu 241003, Peoples R China
3.CAS Ctr Excellence Tibetan Plateau Earth Syst, Beijing, Peoples R China
4.China Univ Geosci, Key Lab Biogeol & Environm Geol, Minist Educ, Wuhan 430074, Peoples R China
5.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Guangdong, Peoples R China
6.Tokai Univ, Grad Sch Sci & Engn, 3-20-1 Orido, Shimizu, Shizuoka 4240902, Japan
Recommended Citation
GB/T 7714
Wang, Y ,Zhu, LP ,Wang, JB ,et al. Paleohydrological processes revealed by n-alkane dD in lacustrine sediments of Lake Pumoyum Co, southern Tibetan Plateau, and their response to climate changes during the past 18.5 cal ka[J]. JOURNAL OF PALEOLIMNOLOGY,2016,56(2-3):223-238.
APA Wang, Y .,Zhu, LP .,Wang, JB .,Ju, JT .,Peng, P .,...&Zhu, LP.(2016).Paleohydrological processes revealed by n-alkane dD in lacustrine sediments of Lake Pumoyum Co, southern Tibetan Plateau, and their response to climate changes during the past 18.5 cal ka.JOURNAL OF PALEOLIMNOLOGY,56(2-3),223-238.
MLA Wang, Y ,et al."Paleohydrological processes revealed by n-alkane dD in lacustrine sediments of Lake Pumoyum Co, southern Tibetan Plateau, and their response to climate changes during the past 18.5 cal ka".JOURNAL OF PALEOLIMNOLOGY 56.2-3(2016):223-238.
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