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DOI	10.1007/s11442-009-0387-3
	Ostracod assemblages and their environmental significance from the lake core of the Nam Co on the Tibetan Plateau 8.4 kaBP
	Xie Manping; Zhu Liping; Peng Ping; Wang Junbo; Wang Yong; Schwalb, Antje
通讯作者	Zhu, LP (通讯作者)
发表日期	2009
ISSN	1009-637X
EISSN	1861-9568
起始页码	387
结束页码	402
卷号	19 期号:4
英文摘要	A 332-cm long lacustrine core was drilled in the Nam Co in the central-southern part of the Tibetan Plateau. From the core, 15 species of ostracods (Crustacea: Ostracoda), which belong to 6 genera have been identified. According to the variations of the ostracod assemblages and the ostracods ecological features, which are sensitive to the changing environment, three main stages can be distinguished as follows: Stage I was from 8400 to 6800 a BP, during which the climate was cold-humid, and the lake depth changed from shallow to deep. Stage 11 was from 6400 to 2500 a BP, during which the climate changed from warm-humid to cold-humid, and then to cold-dry. The lake depth gradually became deep. The shifting of climate, from wet-cold to dry-cold during this period, had constructed the basis of present environment in the Nam Co. Stage III was from 2500 a BP to the present, which showed a trait of lake depth increasing. At the earlier period of this stage, the climate kept as cold-dry as that in the former stage, but the salinity of the lake increased. At the later period of this stage, the degree of cold-dry was enhanced, and the activities of land surface runoff tended to be weakened. Our research also found that the peak values of ostracods with black shell was coherent with the maximum production of the ostracods, and agreed with the increasing sedimentary water dynamics. This indicated that the ostracods with black shell was simultaneous with the high prolificacy of ostracod, and transported from other places. The abundance of Candona juvenile shells reflected the high mortality of that kind of ostracods under an unfavorable condition. This was probably a result of the rapid change of water dynamics of sedimentary environment.
关键词	WESTERN CHINA SEDIMENTS QUATERNARY CLIMATE BASIN INDICATORS MINNESOTA QINGHAI
英文关键词	ostracods; environmental change; lacustrine core; Nam Co; Tibetan Plateau
语种	英语
WOS研究方向	Physical Geography
WOS类目	Geography, Physical
WOS记录号	WOS:000268246700001
来源期刊	JOURNAL OF GEOGRAPHICAL SCIENCES
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/257674
推荐引用方式 GB/T 7714	Xie Manping,Zhu Liping,Peng Ping,et al. Ostracod assemblages and their environmental significance from the lake core of the Nam Co on the Tibetan Plateau 8.4 kaBP[J]. 中国科学院青藏高原研究所,2009,19(4).
APA	Xie Manping,Zhu Liping,Peng Ping,Wang Junbo,Wang Yong,&Schwalb, Antje.(2009).Ostracod assemblages and their environmental significance from the lake core of the Nam Co on the Tibetan Plateau 8.4 kaBP.JOURNAL OF GEOGRAPHICAL SCIENCES,19(4).
MLA	Xie Manping,et al."Ostracod assemblages and their environmental significance from the lake core of the Nam Co on the Tibetan Plateau 8.4 kaBP".JOURNAL OF GEOGRAPHICAL SCIENCES 19.4(2009).