DOI: 10.1016/j.foreco.2012.09.027
Scopus记录号: 2-s2.0-84874968090
论文题名: Climate change impacts on future boreal fire regimes
作者: De Groot W.J. ; Flannigan M.D. ; Cantin A.S.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2013
卷: 294 起始页码: 35
结束页码: 44
语种: 英语
英文关键词: Carbon emissions
; Fire behaviour
; Fire ecology
; Fire weather
; Global climate models
; IPCC climate change scenarios
Scopus关键词: Carbon emissions
; Climate change scenarios
; Fire behaviour
; Fire ecology
; Fire weather
; Global climate model
; Climate change
; Climate models
; Ecology
; Forestry
; Fires
; boreal forest
; carbon emission
; climate change
; climate modeling
; disturbance
; fire behavior
; fuel consumption
; Carbon
; Ecology
; Emission
; Fires
; Forestry
; Canada
; Russian Federation
英文摘要: Fire disturbance is a primary driver of forest dynamics across the circumpolar boreal region, although there are major differences in continental fire regimes. Relatively infrequent, high intensity crown fires dominate North American boreal forests, and low to moderate intensity surface fires of moderate frequency are typical of northern Asia boreal forests. Climate change will result in future altered fire regimes, which will be realized through changes in fire weather, fire behaviour and C emissions. The impacts of climate change on 2091-2100 fire regimes were simulated in two large boreal study areas in central Russia and western Canada using three global climate models (CGCM3.1, HadCM3 and IPSL-CM4) and three climate change scenarios (A1B, A2 and B1). The severity of future fire weather conditions increased in both study areas but was more extreme in the Canadian study area. The CGCM model and the B1 scenario indicated the smallest increases, and the IPSL model and the A2 scenario indicated the greatest increases. Daily Severity Rating (DSR) and head fire intensity (HFI), which are indicators of fire control difficulty, increased in both boreal regions but were more extreme in western Canada. DSR seasonally peaked near the middle of the fire season in both regions at levels much higher than currently experienced. HFI similarly peaked at extreme levels in the late spring or early summer in central Russia. In western Canada, HFI peaked once in the spring at its most extreme level, and again in the late summer at a slightly lower extreme level. Fuel consumption rate changed very little in central Russia, but it increased in western Canada and exhibited a seasonal increasing trend as fuels dried out as the fire season progressed. There was a higher C emissions rate for fires in western Canada, but total C emissions were higher in central Russia due to the greater amount of annual area burned. Future changes in the fire regime will affect forest composition as some species will be favoured over others by fire ecology traits. Fire management will be challenged in the future by increased fire weather severity that could push current suppression capacity beyond a tipping point, resulting in a substantial increase in large fires. © 2012 Published by Elsevier B.V. All rights reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/66692
Appears in Collections: 影响、适应和脆弱性
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作者单位: Canadian Forest Service, Natural Resources Canada, 1219 Queen St. East, Sault Ste. Marie, ON, P6A 2E5, Canada; University of Alberta, Dept. of Renewable Resources, 713A General Services Building, Edmonton, AB, T6G 2H1, Canada
Recommended Citation:
De Groot W.J.,Flannigan M.D.,Cantin A.S.. Climate change impacts on future boreal fire regimes[J]. Forest Ecology and Management,2013-01-01,294