气候变化领域集成服务门户(CCPortal): Warmer and Drier Fire Seasons Contribute to Increases in Area Burned at High Severity in Western US Forests From 1985 to 2017

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DOI	10.1029/2020GL089858
	Warmer and Drier Fire Seasons Contribute to Increases in Area Burned at High Severity in Western US Forests From 1985 to 2017
	Parks S.A.; Abatzoglou J.T.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:22
英文摘要	Increases in burned area across the western United States (US) since the mid-1980s have been widely documented and linked partially to climate factors, yet evaluations of trends in fire severity are lacking. Here we evaluate fire severity trends and their interannual relationships to climate for western US forests from 1985 to 2017. Significant increases in annual area burned at high severity (AABhs) were observed across most ecoregions, with an overall eightfold increase in AABhs across western US forests. The relationships we identified between the annual fire severity metrics and climate, as well as the observed and projected trend toward warmer and drier fire seasons, suggest that climate change will contribute to increased fire severity in future decades where fuels remain abundant. The growing prevalence of high-severity fire in western US forests has important implications to forest ecosystems, including an increased probability of fire-catalyzed conversions from forest to alternative vegetation types. © 2020. American Geophysical Union. All Rights Reserved. This article has been contributed to by US Government employees and their work is in the public domain in the USA.
英文关键词	Climate change; Ecosystems; Forestry; Annual area burned; Catalyzed conversion; Climate factors; Fire severity; Forest ecosystem; High severity fires; Vegetation type; Western United States; Fires; annual variation; climate change; ecoregion; environmental factor; forest ecosystem; spatiotemporal analysis; vegetation type; United States
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/169434
作者单位	Aldo Leopold Wilderness Research Institute, Rocky Mountain Research Station, US Forest Service, Missoula, MT, United States; Management of Complex Systems, University of California, Merced, CA, United States
推荐引用方式 GB/T 7714	Parks S.A.,Abatzoglou J.T.. Warmer and Drier Fire Seasons Contribute to Increases in Area Burned at High Severity in Western US Forests From 1985 to 2017[J],2020,47(22).
APA	Parks S.A.,&Abatzoglou J.T..(2020).Warmer and Drier Fire Seasons Contribute to Increases in Area Burned at High Severity in Western US Forests From 1985 to 2017.Geophysical Research Letters,47(22).
MLA	Parks S.A.,et al."Warmer and Drier Fire Seasons Contribute to Increases in Area Burned at High Severity in Western US Forests From 1985 to 2017".Geophysical Research Letters 47.22(2020).