气候变化领域集成服务门户(CCPortal): Holocene lake level fluctuations and environmental changes at Taro Co, southwestern Tibet, based on ostracod-inferred water depth reconstruction

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DOI	10.1177/0959683615596829
	Holocene lake level fluctuations and environmental changes at Taro Co, southwestern Tibet, based on ostracod-inferred water depth reconstruction
	Guo, Yun; Zhu, Liping; Frenzel, Peter; Ma, Qingfeng; Ju, Jianting; Peng, Ping; Wang, Junbo; Daut, Gerhard
通讯作者	Guo, Y (通讯作者)
发表日期	2016
ISSN	0959-6836
EISSN	1477-0911
起始页码	29
结束页码	43
卷号	26 期号:1
英文摘要	Lake level change is an important indicator of changes in the hydrological status of lakes triggered by the influence of atmospheric circulation systems. Previous studies show that the interaction of the Indian monsoon and the Westerlies, and their influence on environmental changes in the Tibetan Plateau region, remain unclear. Here, we reconstruct the Holocene lake level history of a lake, Taro Co, in southwestern Tibet, based on the relationship between ostracod assemblages and water depth from 34 surface sediment samples spanning the depth range 0 to 125m. Measurement and analysis of multi-proxy data from a 310cm sediment core from Taro Co lead to the following conclusions: (1) From 10,200 to 9400 cal. a BP, the lake received large inflows of freshwater (mainly glacial melt water) resulting in a rapid rise in lake level. Following a cold and dry interval and low lake level from 9400 to 8800 cal. a BP, the lake maintained a high level between 8800 and 7500 cal. a BP. This was followed by a less warm and wet period until 6400 cal. a BP. From 6400 to 1200 cal. a BP, the lake probably overflowed after reaching a high level, and after 1200 cal. a BP, the lake level decreased and fluctuated around the modern depth of 60m at the coring site. (2) The region experienced warm and wet conditions from 10,200 to 6400 cal. a BP, with a cold event at around 9000 cal. a BP, which probably resulted from the influence of the Indian monsoon. However, the inferred wet conditions between 6400 and 1200 cal. a BP are not observed in other records from the monsoon region; they are consistent with numerous records from the regions under the influence of the Westerlies, which probably indicate an interval of Westerlies-domination in the Taro Co region.
关键词	STABLE-ISOTOPE COMPOSITION BASIN WESTERN TIBET MOUNTAINS NW CHINA ARID CENTRAL-ASIA TRACE-ELEMENT MOISTURE EVOLUTION NAM-CO PLATEAU CLIMATE MONSOON
英文关键词	environmental changes; Holocene; ostracod; Taro Co; Tibet; transfer function; water depth
语种	英语
WOS研究方向	Physical Geography ; Geology
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS记录号	WOS:000367628300003
来源期刊	HOLOCENE
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/258728
推荐引用方式 GB/T 7714	Guo, Yun,Zhu, Liping,Frenzel, Peter,et al. Holocene lake level fluctuations and environmental changes at Taro Co, southwestern Tibet, based on ostracod-inferred water depth reconstruction[J]. 中国科学院青藏高原研究所,2016,26(1).
APA	Guo, Yun.,Zhu, Liping.,Frenzel, Peter.,Ma, Qingfeng.,Ju, Jianting.,...&Daut, Gerhard.(2016).Holocene lake level fluctuations and environmental changes at Taro Co, southwestern Tibet, based on ostracod-inferred water depth reconstruction.HOLOCENE,26(1).
MLA	Guo, Yun,et al."Holocene lake level fluctuations and environmental changes at Taro Co, southwestern Tibet, based on ostracod-inferred water depth reconstruction".HOLOCENE 26.1(2016).