Amino acids and stable carbon isotope distributions in Taihu Lake, China, over the last 15,000 years, and their paleoecological implications

NIGPAS OpenIR

	Amino acids and stable carbon isotope distributions in Taihu Lake, China, over the last 15,000 years, and their paleoecological implications
	Wang, JQ (王金权); Liu, JL (刘陆军)
	2000-03-01
发表期刊	QUATERNARY RESEARCH
ISSN	0033-5894
卷号	53 期号:2 页码:223-228
摘要	Amino acid, organic nitrogen, and stable carbon isotope (C-13/C-12) profiles through a core from East Taihu Lake are interpreted in terms of paleoecology and paleoclimate over the last ca. 15,000 yr. Lower amino acid contents and higher delta(13)C values at the base of the core represent a cool and arid climate, and coincide with low organic productivity. A marked increase in total amino acids and organic nitrogen, with a decrease in delta(13)C values from 193 to 90 cm (ca. 6500-6000 yr B.P.), indicates a warmer and moist climate, and greater organic productivity. Amino acids then decrease in abundance, while delta(13)C values increase progressively, beginning at 73 cm (ca. 6000 yr B.P.), reflecting cooling and lower organic productivity. The average delta(13)C values from a core from West Taihu Lake are evidently higher than values from East Taihu Lake. The latter may reflect a stream environment, whereas the high delta(13)C values from West Taihu Lake likely reflect autotrophic carbon sources and a lacustrine environment since 11,000 yr B.P. (C) 2000 University of Washington.
关键词	Amino Acids Stable Carbon Isotope Paleoecology Taihu Lake China
语种	英语
WOS研究方向	Physical Geography ; Geology
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS记录号	WOS:000085958200010
出版者	ACADEMIC PRESS INC
文献类型	期刊论文
条目标识符	http://ir.nigpas.ac.cn/handle/332004/22243
专题	中国科学院南京地质古生物研究所
通讯作者	Wang, JQ (王金权)
作者单位	Acad Sinica, Naning Inst Geol & Palaeontol, Nanjing 210008, Peoples R China
推荐引用方式 GB/T 7714	Wang, JQ ,Liu, JL . Amino acids and stable carbon isotope distributions in Taihu Lake, China, over the last 15,000 years, and their paleoecological implications[J]. QUATERNARY RESEARCH,2000,53(2):223-228.
APA	Wang, JQ ,&Liu, JL .(2000).Amino acids and stable carbon isotope distributions in Taihu Lake, China, over the last 15,000 years, and their paleoecological implications.QUATERNARY RESEARCH,53(2),223-228.
MLA	Wang, JQ ,et al."Amino acids and stable carbon isotope distributions in Taihu Lake, China, over the last 15,000 years, and their paleoecological implications".QUATERNARY RESEARCH 53.2(2000):223-228.