气候变化领域集成服务门户(CCPortal): Water depth related ostracod distribution in Lake Pumoyum Co, southern Tibetan Plateau

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DOI	10.1016/j.quaint.2013.08.054
	Water depth related ostracod distribution in Lake Pumoyum Co, southern Tibetan Plateau
	Peng, Ping; Zhu, Liping; Frenzel, Peter; Wrozyna, Claudia; Ju, Jianting
通讯作者	Peng, P (通讯作者)
发表日期	2013
ISSN	1040-6182
EISSN	1873-4553
起始页码	47
结束页码	55
卷号	313
英文摘要	A modern training set covering 55 surface sediment samples from Pumoyum Co, a freshwater lake on the southern Tibetan Plateau, was analysed in order to quantify relationships between ostracod species distribution and environmental conditions. The extensive data set referring to nine ostracod species includes physico-chemical parameters for water depths ranging between 1 m and 62 m. Canonical correspondence analysis suggests that water depth significantly controls the spatial distribution of modern ostracods in the lake. On this basis, an ostracod-based water depth transfer function was established for reconstructing palaeo-lake levels. The transfer function presents a good correlation between measured and estimated water depth (R-2 = 0.87), with a root mean square error of prediction of 15.5 m. This transfer function was applied to fossil ostracod associations of 38 sediment samples from a gravity core which covers the last 6 ka BP. Three stages of lake level fluctuations since 6 ka BP were inferred: a low lake level (similar to-25 m compared to the present 65 m depth) between 6.0 ka BP and 4.3 ka BP, a fluctuating lake level (-25 to 5 m) from 4.3 to 2.0 ka BP, and a rise from a low level (-25 m) to that of present day within the last two millennia. Together with other proxies including ostracod diversity and grain size as well as total organic carbon and total inorganic carbon content of the gravity core sediments, the water depth transfer function was used to reconstruct past climate change in the Pumoyum Co area as a response to Indian Monsoon dynamics. (C) 2013 Elsevier Ltd and INQUA. All rights reserved.
关键词	HOLOCENE ENVIRONMENTAL-CHANGES BASIN WESTERN TIBET SPATIAL-DISTRIBUTION AIR TEMPERATURES PUMAYUM CO CONDUCTIVITY ASSEMBLAGES INDICATORS CATCHMENT UPLIFT
语种	英语
WOS研究方向	Physical Geography ; Geology
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS记录号	WOS:000327171200005
来源期刊	QUATERNARY INTERNATIONAL
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/258163
推荐引用方式 GB/T 7714	Peng, Ping,Zhu, Liping,Frenzel, Peter,et al. Water depth related ostracod distribution in Lake Pumoyum Co, southern Tibetan Plateau[J]. 中国科学院青藏高原研究所,2013,313.
APA	Peng, Ping,Zhu, Liping,Frenzel, Peter,Wrozyna, Claudia,&Ju, Jianting.(2013).Water depth related ostracod distribution in Lake Pumoyum Co, southern Tibetan Plateau.QUATERNARY INTERNATIONAL,313.
MLA	Peng, Ping,et al."Water depth related ostracod distribution in Lake Pumoyum Co, southern Tibetan Plateau".QUATERNARY INTERNATIONAL 313(2013).