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	Characteristics of cold-warm variation in the Hetao region and its surrounding areas in China during the past 5000 years
	Li M. Q. ; Ge Q. S. ; Hao Z. X. ; Zheng J. Y. ; He S. F.
	2010
关键词	north-atlantic climate inner-mongolia hemisphere temperatures daihai lake 2 millennia holocene reconstruction monsoon record middle
英文摘要	Using six long-term temperature proxy data series derived from different natural evidences, including pollens and lake-sediments, we reconstructed a temperature series with a 100-yr time resolution for the past 5000 yr in the Hetao region and its surrounding areas. The resulting series suggests that, on a millennial timescale, temperatures in the region were higher than the mean value of the whole series during the 5000 similar to 2600 years before present (yr BP) period, and became relatively low comparing with the average temperature of the whole series after 2600 yr BP. Within these two periods, temperature fluctuations comprising numerous short, multi-centennial intervals also existed. A comparison between our reconstructed series and other series in China and across the Northern Hemisphere indicate that, on a long-term scale, cold-warm variations had been in phase across the whole hemisphere during the past 5000 years; on the century to multi-century scale, the beginning and the ending times varied from region to region, thus implying that climate changes did not occur simultaneously in different regions.
出处	Climate of the Past
卷	6
期	4
页	475-481
收录类别	SCI
语种	英语
ISSN号	1814-9324
内容类型	SCI/SSCI论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/23630]
专题	地理科学与资源研究所_历年回溯文献
推荐引用方式 GB/T 7714	Li M. Q.,Ge Q. S.,Hao Z. X.,et al. Characteristics of cold-warm variation in the Hetao region and its surrounding areas in China during the past 5000 years. 2010.

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