气候变化领域集成服务门户(CCPortal): The spatial distribution and sedimentary processes of organic matter in surface sediments of Nam Co, Central Tibetan Plateau

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DOI	10.1007/s11434-012-5500-9
	The spatial distribution and sedimentary processes of organic matter in surface sediments of Nam Co, Central Tibetan Plateau
	Wang Yong; Zhu LiPing; Wang JunBo; Ju JianTing; Lin Xiao
通讯作者	Zhu, LP (通讯作者)
发表日期	2012
ISSN	1001-6538
EISSN	1861-9541
起始页码	4753
结束页码	4764
卷号	57 期号:36
英文摘要	In this study, 67 surface sediment samples collected from Nam Co in central Tibet were analyzed for total carbon, total organic carbon and total nitrogen, and 51 of these samples were also analyzed for n-alkanes. The origin and spatial distribution of organic matter were then investigated using these proxies, and the control factors responsible for the spatial distribution patterns and paleolimnological significance were discussed. The results indicated that the origin of organic matter in surface sediment of Nam Co is consistent with the sources of n-alkanes, which were primarily submerged plants, followed by terrestrial plants, and then aquatic algae and bacteria. The organic matter in surface sediments of the lake showed typical spatial variability. Because of the great influence of underwater topography, river inputs and water quality, the spatial distribution of organic matter is enriched from the source to the deposit center. This spatial variability of organic matter in the lake indicates that the sediments in different areas have different sensitivities to environmental changes, which is important to reconstruction of paleoenvironments and paleoclimate using lake sediment cores.
关键词	ENVIRONMENTAL-CHANGES PALEOCLIMATIC CHANGES LAKE SEDIMENT CARBON GEOCHEMISTRY VARIABILITY DELTA-C-13 BASIN WATER AREA
英文关键词	Tibetan Plateau; Nam Co; surface sediments; spatial distribution; sedimentary processes
语种	英语
WOS研究方向	Science & Technology - Other Topics
WOS类目	Multidisciplinary Sciences
WOS记录号	WOS:000312637600014
来源期刊	CHINESE SCIENCE BULLETIN
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/258023
推荐引用方式 GB/T 7714	Wang Yong,Zhu LiPing,Wang JunBo,et al. The spatial distribution and sedimentary processes of organic matter in surface sediments of Nam Co, Central Tibetan Plateau[J]. 中国科学院青藏高原研究所,2012,57(36).
APA	Wang Yong,Zhu LiPing,Wang JunBo,Ju JianTing,&Lin Xiao.(2012).The spatial distribution and sedimentary processes of organic matter in surface sediments of Nam Co, Central Tibetan Plateau.CHINESE SCIENCE BULLETIN,57(36).
MLA	Wang Yong,et al."The spatial distribution and sedimentary processes of organic matter in surface sediments of Nam Co, Central Tibetan Plateau".CHINESE SCIENCE BULLETIN 57.36(2012).