气候变化领域集成服务门户(CCPortal): Millennial temperature reconstruction based on tree-ring widths of Qilian juniper from Wulan, Qinghai Province, China

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DOI	10.1007/s11434-008-0400-8
	Millennial temperature reconstruction based on tree-ring widths of Qilian juniper from Wulan, Qinghai Province, China
	Zhu HaiFeng; Zheng YongHong; Shao XueMei; Liu XiaoHong; Xu Yan; Liang ErYuan
通讯作者	Shao, XM (通讯作者)
发表日期	2008
ISSN	1001-6538
EISSN	1861-9541
起始页码	3914
结束页码	3920
卷号	53 期号:24
英文摘要	The climate of the past 1000 years is an important context for evaluating the recent climate warming. However, there are few 1000-year-long climate reconstructions with annual resolution in the Qinghai-Tibet Plateau. In this paper, a dendroclimatic analysis was conducted for the radial growth of Qilian juniper from the upper forest limit in Wulan, Qinghai Province. The results of correlation analysis between the tree-ring widths and the climate variables indicate that the growth of junipers at the upper forest limit is mainly limited by low temperatures of September, November and February of the pregrowth season, and July of the current growth season. There is no significant correlation between the tree-ring widths and precipitation. A mean temperature from the previous year's September to the current year's April was reconstructed for the Wulan area since A.D. 1000. The reconstruction can explain 40.8% of the instrumental variance in the calibration period (1856-2002). The reconstruction shows that the 20th century is the warmest 100 years, and the 1990s is the warmest decade during the past 1000 years, while the coldest 100 years and decade occur at 1600-1699 and 1642-1651, respectively. The variations are verified well by the temperature reconstruction of the middle Qilian Mountain (QL) and the total organic carbon (TOC) in the Qinghai Lake sediments. The comparison of our reconstruction with the annual temperature reconstruction of extra-tropical Northern Hemisphere suggests that the climate of Wulan during the Medieval Warm Period is of obvious regional specialty, but there was a good response to the climate of hemispheric scales during the recent 400 years.
关键词	NORTHERN-HEMISPHERE TEMPERATURES TIBETAN PLATEAU PRECIPITATION VARIATION CLIMATE VARIABILITY SABINA-PRZEWALSKII RESOLUTION GROWTH CHRONOLOGIES RECORD SERIES
英文关键词	Tibetan Plateau; Qaidam Basin; Qilian juniper; tree ring; temperature reconstruction; climate warming
语种	英语
WOS研究方向	Science & Technology - Other Topics
WOS类目	Multidisciplinary Sciences
WOS记录号	WOS:000261951300017
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/257562
推荐引用方式 GB/T 7714	Zhu HaiFeng,Zheng YongHong,Shao XueMei,et al. Millennial temperature reconstruction based on tree-ring widths of Qilian juniper from Wulan, Qinghai Province, China[J]. 中国科学院青藏高原研究所,2008,53(24).
APA	Zhu HaiFeng,Zheng YongHong,Shao XueMei,Liu XiaoHong,Xu Yan,&Liang ErYuan.(2008).Millennial temperature reconstruction based on tree-ring widths of Qilian juniper from Wulan, Qinghai Province, China.CHINESE SCIENCE BULLETIN,53(24).
MLA	Zhu HaiFeng,et al."Millennial temperature reconstruction based on tree-ring widths of Qilian juniper from Wulan, Qinghai Province, China".CHINESE SCIENCE BULLETIN 53.24(2008).