干旱区生态环境知识资源中心(Arid): Linked fire activity and climate whiplash in California during the early Holocene

Arid

DOI	10.1038/s41467-022-34950-x
	Linked fire activity and climate whiplash in California during the early Holocene
	Homann, Julia; Oster, Jessica L.; de Wet, Cameron B.; Breitenbach, Sebastian F. M.; Hoffmann, Thorsten
通讯作者	Oster, JL
来源期刊	NATURE COMMUNICATIONS
EISSN	2041-1723
出版年	2022
卷号	13 期号:1
英文摘要	Recent wildfire activity in semi-arid regions like western North America exceeds the range of historical records. High-resolution paleoclimate archives such as stalagmites could illuminate the link between hydroclimate, vegetation change, and fire activity in pre-anthropogenic climate states beyond the timescale of existing tree-ring records. Here we present an analysis of levoglucosan, a combustion-sensitive anhydrosugar, and lignin oxidation products (LOPs) in a stalagmite, reconstructing fire activity and vegetation composition in the California Coast Range across the 8.2 kyr event. Elevated levoglucosan concentrations suggest increased fire activity while altered LOP compositions indicate a shift toward more woody vegetation during the event. These changes are concurrent with increased hydroclimate volatility as shown by carbon and calcium isotope proxies. Together, these records suggest that climate whiplash (oscillations between extreme wetness and aridity) and fire activity in California, both projected to increase with anthropogenic climate change, were tightly coupled during the early Holocene. A California stalagmite records vegetation shifts and increased fire activity during the 8.2 kyr event. These changes occur alongside oscillations between wet and dry extremes suggesting tight coupling between climate whiplash and fire activity.
类型	Article
语种	英语
开放获取类型	Green Accepted, gold, Green Published
收录类别	SCI-E
WOS记录号	WOS:000887967800011
WOS关键词	LONG-RANGE TRANSPORT ; LEVOGLUCOSAN ; LAKE ; US ; WILDFIRE ; HISTORY ; RECORDS ; TRACER ; FUEL
WOS类目	Multidisciplinary Sciences
WOS研究方向	Science & Technology - Other Topics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/393849
推荐引用方式 GB/T 7714	Homann, Julia,Oster, Jessica L.,de Wet, Cameron B.,et al. Linked fire activity and climate whiplash in California during the early Holocene[J],2022,13(1).
APA	Homann, Julia,Oster, Jessica L.,de Wet, Cameron B.,Breitenbach, Sebastian F. M.,&Hoffmann, Thorsten.(2022).Linked fire activity and climate whiplash in California during the early Holocene.NATURE COMMUNICATIONS,13(1).
MLA	Homann, Julia,et al."Linked fire activity and climate whiplash in California during the early Holocene".NATURE COMMUNICATIONS 13.1(2022).