气候变化领域集成服务门户(CCPortal): Warming and earlier spring increase Western U.S. forest wildfire activity

CCPortal

DOI	10.1126/science.1128834
	Warming and earlier spring increase Western U.S. forest wildfire activity
	Westerling A.L.; Hidalgo H.G.; Cayan D.R.; Swetnam T.W.
发表日期	2006
ISSN	0036-8075
起始页码	940
结束页码	943
卷号	313 期号:5789
英文摘要	Western United States forest wildfire activity is widely thought to have increased in recent decades, yet neither the extent of recent changes nor the degree to which climate may be driving regional changes in wildfire has been systematically documented. Much of the public and scientific discussion of changes in western United States wildfire has focused instead on the effects of 19th- and 20th-century land-use history. We compiled a comprehensive database of large wildfires in western United States forests since 1970 and compared it with hydroclimatic and land-surface data. Here, we show that large wildfire activity increased suddenly and markedly in the mid-1980s, with higher large-wildfire frequency, longer wildfire durations, and longer wildfire seasons. The greatest increases occurred in mid-elevation, Northern Rockies forests, where land-use histories have relatively little effect on fire risks and are strongly associated with increased spring and summer temperatures and an earlier spring snowmelt.
英文关键词	Climate change; Fire hazards; Forestry; Land use; Hydroclimatic data; Land surface data; Wildfire; Wildfire frequency; Fires; air temperature; climate change; database; forest fire; land use; snowmelt; spring (season); warming; wildfire; article; climate; environmental temperature; fire; forest; greenhouse effect; land use; priority journal; spring; summer; United States; Climates; Fires; Forestry; Land Use; North America; United States
语种	英语
来源期刊	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/246009
作者单位	Scripps Institution of Oceanography, San Diego, CA 92093, United States; University of California, Merced, CA 95344, United States; U.S. Geological Survey, San Diego, CA 92093, United States; Laboratory of Tree-Ring Research, University of Arizona, Tucson, AZ 85721, United States
推荐引用方式 GB/T 7714	Westerling A.L.,Hidalgo H.G.,Cayan D.R.,et al. Warming and earlier spring increase Western U.S. forest wildfire activity[J],2006,313(5789).
APA	Westerling A.L.,Hidalgo H.G.,Cayan D.R.,&Swetnam T.W..(2006).Warming and earlier spring increase Western U.S. forest wildfire activity.Science,313(5789).
MLA	Westerling A.L.,et al."Warming and earlier spring increase Western U.S. forest wildfire activity".Science 313.5789(2006).