气候变化领域集成服务门户(CCPortal): Late summer temperature reconstruction based on tree-ring density for Sygera Mountain, southeastern Tibetan Plateau

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DOI	10.1016/j.gloplacha.2018.02.005
	Late summer temperature reconstruction based on tree-ring density for Sygera Mountain, southeastern Tibetan Plateau
	Li, Mingyong; Duan, Jianping; Wang, Lily; Zhu, Haifeng
通讯作者	Duan, JP (通讯作者)
发表日期	2018
ISSN	0921-8181
EISSN	1872-6364
起始页码	10
结束页码	17
卷号	163
英文摘要	Although several tree-ring density-based summer/late summer temperature reconstructions have been developed on the Tibetan Plateau (TP), the understanding of the local/regional characteristics of summer temperature fluctuations on a long-term scale in some regions is still limited. To improve our understanding in these aspects, more local or regional summer temperature reconstructions extending back over several centuries are required. In this study, a new mean latewood density (LWD) chronology from Abies georgei var. smithii from the upper tree line of Sygera Mountain on the southeastern TP was developed to reconstruct the late summer temperature variability since 1820 CE. The bootstrapped correlation analysis showed that the LWD chronology index was significantly and positively correlated with the late summer (August-September) mean temperatures (r(1950-2008) = 0.63, p < 0.001) recorded at the nearest meteorological station and that this reconstruction has considerable potential to represent the late summer temperature variability at the regional scale. Our late summer temperature reconstruction revealed three obvious cold periods (i.e., 1872-1908, 1913-1937 and 1941-1966) and two relatively warm phases (i.e., 1821-1871 and 1970-2008) over the past two centuries. Comparisons of our reconstruction with other independent tree-ring-based temperature reconstructions, glacier fluctuations and historical documental records from neighboring regions showed good agreement in these relatively cold and warm intervals. Our reconstruction exhibits an overall increasing temperature trend since the 1960s, providing new evidence supporting the recent wanning of the TP. Moreover, our results also indicate that the late summer temperature variability of Sygera Mountain on the southeastern TP has potential links with the Pacific Decadal Oscillation (PDO).
关键词	WARM-SEASON TEMPERATURE WEST SICHUAN PLATEAU MAXIMUM DENSITY GAOLIGONG MOUNTAINS SPRUCE VARIABILITY OSCILLATION STALAGMITE MILLENNIUM CHRONOLOGY
英文关键词	Tree-ring density; Late summer temperature; Abies georgei var. smithii; Sygera Mountain; Tibetan Plateau
语种	英语
WOS研究方向	Physical Geography ; Geology
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS记录号	WOS:000430771400002
来源期刊	GLOBAL AND PLANETARY CHANGE
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/259231
推荐引用方式 GB/T 7714	Li, Mingyong,Duan, Jianping,Wang, Lily,et al. Late summer temperature reconstruction based on tree-ring density for Sygera Mountain, southeastern Tibetan Plateau[J]. 中国科学院青藏高原研究所,2018,163.
APA	Li, Mingyong,Duan, Jianping,Wang, Lily,&Zhu, Haifeng.(2018).Late summer temperature reconstruction based on tree-ring density for Sygera Mountain, southeastern Tibetan Plateau.GLOBAL AND PLANETARY CHANGE,163.
MLA	Li, Mingyong,et al."Late summer temperature reconstruction based on tree-ring density for Sygera Mountain, southeastern Tibetan Plateau".GLOBAL AND PLANETARY CHANGE 163(2018).