DOI: 10.1111/gcb.12433
论文题名: Abrupt fire regime change may cause landscape-wide loss of mature obligate seeder forests
作者: Bowman D.M.J.S. ; Murphy B.P. ; Neyland D.L.J. ; Williamson G.J. ; Prior L.D.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2014
卷: 20, 期: 3 起始页码: 1008
结束页码: 1015
语种: 英语
英文关键词: Climate change
; Deforestation
; Eucalyptus
; Fire management
; Forest
; Wildfire
Scopus关键词: aboveground biomass
; climate change
; deforestation
; fire management
; forest fire
; landscape
; mortality
; shrub
; tree
; wildfire
; carbon
; article
; Austria
; biomass
; climate change
; deforestation
; Eucalyptus
; fire
; fire management
; fogo selvagem
; forest
; growth, development and aging
; tree
; climate change
; deforestation
; Eucalyptus
; fire management
; forest
; wildfire
; Austria
; Biomass
; Carbon
; Eucalyptus
; Fires
; Trees
英文摘要: Obligate seeder trees requiring high-severity fires to regenerate may be vulnerable to population collapse if fire frequency increases abruptly. We tested this proposition using a long-lived obligate seeding forest tree, alpine ash (Eucalyptus delegatensis), in the Australian Alps. Since 2002, 85% of the Alps bioregion has been burnt by several very large fires, tracking the regional trend of more frequent extreme fire weather. High-severity fires removed 25% of aboveground tree biomass, and switched fuel arrays from low loads of herbaceous and litter fuels to high loads of flammable shrubs and juvenile trees, priming regenerating stands for subsequent fires. Single high-severity fires caused adult mortality and triggered mass regeneration, but a second fire in quick succession killed 97% of the regenerating alpine ash. Our results indicate that without interventions to reduce fire severity, interactions between flammability of regenerating stands and increased extreme fire weather will eliminate much of the remaining mature alpine ash forest. © 2013 John Wiley & Sons Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/61988
Appears in Collections: 影响、适应和脆弱性
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作者单位: NERP Landscapes and Policy Hub, School of Biological Sciences, University of Tasmania, Hobart, TAS 7001, Australia; NERP Environmental Decisions Hub, School Botany, The University of Melbourne, Parkville, VIC 3010, Australia
Recommended Citation:
Bowman D.M.J.S.,Murphy B.P.,Neyland D.L.J.,et al. Abrupt fire regime change may cause landscape-wide loss of mature obligate seeder forests[J]. Global Change Biology,2014-01-01,20(3)