气候变化领域集成服务门户(CCPortal): Drought Reconstruction Over the Past Two Centuries in Southern Myanmar Using Teak Tree-Rings: Linkages to the Pacific and Indian Oceans

CCPortal

DOI	10.1029/2020GL087627
	Drought Reconstruction Over the Past Two Centuries in Southern Myanmar Using Teak Tree-Rings: Linkages to the Pacific and Indian Oceans
	Zaw Z.; Fan Z.-X.; Bräuning A.; Xu C.-X.; Liu W.-J.; Gaire N.P.; Panthi S.; Than K.Z.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:10
英文摘要	To develop a high-resolution paleoclimate proxy record facilitating adaptation measures on drought impacts, we constructed a regional composite tree-ring chronology of teak (Tectona grandis) by combining three local site chronologies from southern Myanmar. Our regional tree-ring record is strongly correlated with the November–April self-calibrated Palmer drought severity index and enabled us to reconstruct drought variability for the period 1802–2016. The reconstruction explained 46.5% of the actual self-calibrated Palmer drought severity index variance. Over the past two centuries, we detected one extreme (1812) and six severe drought years (1810, 1811, 1816, 1852, 1887, and 1980). Dry periods coincided with six major famines that occurred in India. Spatial correlation analyses revealed that drought occurrence is linked to broader-scale atmospheric circulations of the Pacific and Indian Oceans, especially during the positive phase of the El Niño–Southern Oscillation. Our reconstruction provides a useful historical perspective for assessing adaptation measures intent on mitigating future drought impacts in Myanmar. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Atmospheric pressure; Food supply; Forestry; Atmospheric circulation; Historical perspective; Paleoclimate proxy; Self-calibrated palmer drought severity indices; Southern oscillation; Spatial correlation analysis; Tree ring records; Tree-ring chronologies; Drought; atmospheric circulation; calibration; climate effect; deciduous tree; dendrochronology; drought; dry season; El Nino-Southern Oscillation; paleoclimate; proxy climate record; reconstruction; tree ring; India; Indian Ocean; Myanmar; Pacific Ocean; Tectona grandis
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/170324
作者单位	CAS Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla, China; College of Life Sciences, University of Chinese Academy of Sciences, Beijing, China; Center of Plant Ecology, Core Botanical Gardens, Chinese Academy of Sciences, Xishuangbanna, China; Institute of Geography, University of Erlangen-Nürnberg, Erlangen, Germany; Key Laboratory of Cenozoic Geology and Environment, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China; CAS Center for Excellence in Life and Paleoenvironment, Beijing, China; Center for Integrative Conservation, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla, China; Watershed Management Division, Forest Department, Ministry of Natural Resources and Environmental Conservation, Nay Pyi Taw, Myanmar
推荐引用方式 GB/T 7714	Zaw Z.,Fan Z.-X.,Bräuning A.,et al. Drought Reconstruction Over the Past Two Centuries in Southern Myanmar Using Teak Tree-Rings: Linkages to the Pacific and Indian Oceans[J],2020,47(10).
APA	Zaw Z..,Fan Z.-X..,Bräuning A..,Xu C.-X..,Liu W.-J..,...&Than K.Z..(2020).Drought Reconstruction Over the Past Two Centuries in Southern Myanmar Using Teak Tree-Rings: Linkages to the Pacific and Indian Oceans.Geophysical Research Letters,47(10).
MLA	Zaw Z.,et al."Drought Reconstruction Over the Past Two Centuries in Southern Myanmar Using Teak Tree-Rings: Linkages to the Pacific and Indian Oceans".Geophysical Research Letters 47.10(2020).