气候变化领域集成服务门户(CCPortal): 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

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DOI	10.1007/s10933-016-9909-z
	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, Yong; Zhu, Liping; Wang, Junbo; Ju, Jianting; Peng, Ping; Lin, Xiao; Hu, Jianfang; Nishimura, Mitsugu
通讯作者	Wang, Y ; Zhu, LP (通讯作者)
发表日期	2016
ISSN	0921-2728
EISSN	1573-0417
起始页码	223
结束页码	238
卷号	56 期号:2-3
英文摘要	In 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.
关键词	SUMMER MONSOON VARIABILITY HYDROGEN ISOTOPE RATIOS DELTA-D VALUES NAM-CO ENVIRONMENTAL-CHANGES STABLE-ISOTOPES PALEOCLIMATIC CHANGES HYDROLOGICAL CHANGES HIGH-RESOLUTION INDIAN MONSOON
英文关键词	Paleohydrological processes; n-Alkanes; Stable hydrogen isotope; Lake sediments; Southern Tibetan Plateau; Monsoon
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Marine & Freshwater Biology
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary ; Limnology
WOS记录号	WOS:000383989300009
来源期刊	JOURNAL OF PALEOLIMNOLOGY
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/258808
推荐引用方式 GB/T 7714	Wang, Yong,Zhu, Liping,Wang, Junbo,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]. 中国科学院青藏高原研究所,2016,56(2-3).
APA	Wang, Yong.,Zhu, Liping.,Wang, Junbo.,Ju, Jianting.,Peng, Ping.,...&Nishimura, Mitsugu.(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).
MLA	Wang, Yong,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).