DOI: 10.1016/j.foreco.2016.08.009
Scopus记录号: 2-s2.0-84989919789
论文题名: Sensitivity of reconstructed fire histories to detection criteria in mixed-severity landscapes
作者: Stretch V. ; Gedalof Z. ; Cockburn J. ; Pisaric M.F.J.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2016
卷: 379 起始页码: 61
结束页码: 69
语种: 英语
英文关键词: Dendrochronology
; Event detection
; Fire scar
; Regime classification
; Rocky Mountains
; Stand establishment
Scopus关键词: Ecology
; Fire hazards
; Forestry
; Dendrochronology
; Event detection
; Fire scars
; Rocky Mountains
; Stand establishment
; Fires
英文摘要: In heterogeneous forest landscapes prone to wildfires, accurate classification of the fire regime beyond direct observations and records is difficult. This is in part due to the methods used to reconstruct historical fires in complex, heterogeneous landscapes with varying fire severities. Mixed-severity fire regimes, defined as variations in wildfire severity over time and/or space, have important implications for ecosystem functioning and forest management. Fire event detection is used to reduce uncertainties in historical tree-ring proxy records. The number of fire events considered in fire regime classification varies based on detection criteria (filters) that are researcher-selected, such as number of trees or plots recording fire. Here we analyzed the sensitivity of fire regime classification to common detection criteria in a mixed-severity fire regime in the eastern foothills of the Rocky Mountains, Alberta, Canada. We found that detection criteria bias records toward high-severity events and against potentially ecologically significant low-severity fires in mixed-severity regimes, ultimately classifying them as higher severity. We conclude that detection criteria methods must address the scale that is relevant to the ecological or management questions being addressed. © 2016 Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/64728
Appears in Collections: 影响、适应和脆弱性
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作者单位: Geography, University of Guelph, 50 Stone Road E, Guelph, ON, Canada; Geography, Brock University, 1812 Sir Isaac Brock Way, St. Catharines, ON, Canada
Recommended Citation:
Stretch V.,Gedalof Z.,Cockburn J.,et al. Sensitivity of reconstructed fire histories to detection criteria in mixed-severity landscapes[J]. Forest Ecology and Management,2016-01-01,379