干旱区生态环境知识资源中心(Arid): Stable Carbon and Oxygen Isotopes of Pedogenic Carbonates in Ustic Vertisols: Implications for Paleoenvironmental Change

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	Stable Carbon and Oxygen Isotopes of Pedogenic Carbonates in Ustic Vertisols: Implications for Paleoenvironmental Change
	Huang Cheng-Min; Wang Cheng-Shan; Tang Ya
来源期刊	Pedosphere
ISSN	1002-0160
出版年	2005
卷号	15 期号:4 页码:539-544
英文摘要	Pedogenic carbonates, found extensively in arid and semiarid regions, are important in revealing regional climatic and environmental changes as well as the carbon cycle. In addition, stable carbon and oxygen isotopic compositions of pedogenic carbonates have been used to rebuild paleoecology (biomass and vegetation) and to estimate paleotemperature and paleoprecipitation during past geological time. By utilizing the stable carbon and oxygen isotopic compositions (delta13C and delta18O) of secondary nodules in Ustic Vertisols, this study looked into the climatic and environmental changes in the dry valleys of the Yuanmou Basin, Yunnan Province, in southwestern China. The results showed that during the early Holocene, a warm-humid or hot-humid climate existed in the Yuanmou Basin, but since then fluctuations in climate have occurred, with a dry climate prevailing. A highly significant correlation (r = 0.92, n= 9) between delta13C and delta18O values of carbonates illustrated that there had been a continual shifting between cold-humid and warm-dry climates in southwestern China including the Yuanmou Basin since the early Holocene.
英文关键词	carbon isotopic composition oxygen pedogenic carbonates Ustic Vertisols
类型	Article
语种	英语
收录类别	CSCD
WOS研究方向	Agriculture
CSCD记录号	CSCD:2001384
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/334888
作者单位	Huang Cheng-Min, Department of Environmental Science and Technology, Sichuan University, Chengdu, SiChuan 610065, China.; Tang Ya, Department of Environmental Science and Technology, Sichuan University, Chengdu, SiChuan 610065, China.; Wang Cheng-Shan, Institute of Sedimentary Geology, Chengdu University of Technology, Chengdu, SiChuan 610059, China.
推荐引用方式 GB/T 7714	Huang Cheng-Min,Wang Cheng-Shan,Tang Ya. Stable Carbon and Oxygen Isotopes of Pedogenic Carbonates in Ustic Vertisols: Implications for Paleoenvironmental Change[J],2005,15(4):539-544.
APA	Huang Cheng-Min,Wang Cheng-Shan,&Tang Ya.(2005).Stable Carbon and Oxygen Isotopes of Pedogenic Carbonates in Ustic Vertisols: Implications for Paleoenvironmental Change.Pedosphere,15(4),539-544.
MLA	Huang Cheng-Min,et al."Stable Carbon and Oxygen Isotopes of Pedogenic Carbonates in Ustic Vertisols: Implications for Paleoenvironmental Change".Pedosphere 15.4(2005):539-544.