干旱区生态环境知识资源中心(Arid): Centennial-scale cooling-induced megadroughts in Myanmar's tropical arid region over the past 8000 years

Arid

DOI	10.1016/j.quascirev.2024.108744
	Centennial-scale cooling-induced megadroughts in Myanmar's tropical arid region over the past 8000 years
	Li, Jie; Zhang, Jiaoyang; Li, Jingjing; Li, Miaofa; Liu, Jixiang; Hudson, Bob; Sein, Kyaing; Zhang, Huiling; Wang, Rong; Wang, Luo; Chu, Guoqiang; Xiao, Jule
通讯作者	Li, J
来源期刊	QUATERNARY SCIENCE REVIEWS
ISSN	0277-3791
EISSN	1873-457X
出版年	2024
卷号	334
英文摘要	The future impact of global warming on tropical arid regions is unclear due to uncertainties about the correlation between rising temperatures and changes in precipitation patterns. A critical factor is the reliability of the sedimentary chronologies. Hence, to better understand the potential long-term consequences of climatic warming or cooling for tropical arid regions we compared a pollen record from the annually-laminated sediments of a crater lake in Myanmar with ice core records of the Siberian High, both of which have an annual resolution. Our findings reveal that over the past 8000 years, the Myanmar region experienced six significant drought events, three of which coincided precisely with intensifications of the Siberian High-pressure system. Furthermore, five out of these six events were synchronous with the North Atlantic Bond events within the limit of the dating uncertainties. Conversely, warm periods were associated with increased precipitation along with relatively short-lived drought events. Our findings suggest that regardless of the El Nino intensity, a cooling trend in the Northern Hemisphere may result in persistent extreme drought conditions in arid tropical regions. Therefore, as well as the environmental implications of global warming, it is also important to address the potential hazards associated with cooling, especially in arid tropical regions. To facilitate effective disaster management and to develop strategies for climate change mitigation, it is crucial to better understand the complex relationship between temperature fluctuations and drought. Overall, our findings are a reminder of the importance of not ignoring the potential disasters that may arise from cooling trends while focusing exclusively on warming.
英文关键词	Pollen Annually -laminated Cooling Megadroughts Myanmar
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001247991200001
WOS关键词	INDIAN-SUMMER MONSOON ; ASIAN MONSOON ; HIGH-RESOLUTION ; CLIMATE-CHANGE ; HOLOCENE ; PRECIPITATION ; VARIABILITY ; TRENDS ; RECORD ; LINKS
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS研究方向	Physical Geography ; Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/405252
推荐引用方式 GB/T 7714	Li, Jie,Zhang, Jiaoyang,Li, Jingjing,et al. Centennial-scale cooling-induced megadroughts in Myanmar's tropical arid region over the past 8000 years[J],2024,334.
APA	Li, Jie.,Zhang, Jiaoyang.,Li, Jingjing.,Li, Miaofa.,Liu, Jixiang.,...&Xiao, Jule.(2024).Centennial-scale cooling-induced megadroughts in Myanmar's tropical arid region over the past 8000 years.QUATERNARY SCIENCE REVIEWS,334.
MLA	Li, Jie,et al."Centennial-scale cooling-induced megadroughts in Myanmar's tropical arid region over the past 8000 years".QUATERNARY SCIENCE REVIEWS 334(2024).