DOI: 10.1016/j.foreco.2015.05.033
Scopus记录号: 2-s2.0-84938211164
论文题名: Tree survival scales to community-level effects following mixed-severity fire in a mixed-conifer forest
作者: Travis Belote R. ; Larson A.J. ; Dietz M.S.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2015
卷: 353 起始页码: 221
结束页码: 231
语种: 英语
英文关键词: Fire severity
; Larix occidentalis
; Mixed-conifer
; Mixed-severity fire
; Wildfire
Scopus关键词: Fires
; Fire severity
; Larix occidentalis
; Mixed conifer
; Mixed severity
; Wildfire
; Forestry
; burning
; coniferous forest
; field method
; fire behavior
; mixed forest
; mortality
; population density
; relative abundance
; remote sensing
; survival
; tolerance
; wildfire
; Bob Marshall Wilderness
; Montana
; United States
; Coniferophyta
; Larix
; Larix occidentalis
英文摘要: Identifying the drivers of tree mortality and survival is critical to developing conceptual and predictive models of fire effects on forest communities and landscapes. Individual tree characteristics (a function of species traits and tree size) govern tree- and community-scale mortality following fire, but mortality can also depend on tree density and effects arising from instantaneous extreme fire behavior. However, the relative importance and interaction of these factors are not well understood, especially for mixed-severity fire regimes. We sampled burned mixed-conifer forests dominated by western larch (. Larix occidentalis) in the Bob Marshall Wilderness of Montana, U.S.A. We combined these field measurements with a remotely-sensed estimate of initial burn severity (dNBR) to test predictions about drivers of fire effects that produce heterogeneous post-fire tree and stand-level mortality. Tree survival 8-13. years after fire depended on complex interactions between species, size, and initial burn severity. Western larch experienced much higher survival than other tree species across tree sizes. Predictably, less fire-tolerant species experienced much lower survival than western larch. These tree-level probabilities in survival scale up to govern community-level mortality through variability in species composition. Greater relative abundance of fire-tolerant larch was associated with reduced levels of mortality at community scales. Interestingly, higher tree densities were either uncorrelated with community-level mortality or associated with lower community-level mortality. Our results show that traits of individuals can govern fire effects from trees to communities, and give rise to highly variable fire effects characteristic of mixed-severity fire. © 2015 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/65369
Appears in Collections: 影响、适应和脆弱性
There are no files associated with this item.
作者单位: The Wilderness Society, Northern Rockies Regional Office, 503 W. Mendenhall, Bozeman, MT, United States; Department of Forest Management, University of Montana, 32 Campus Drive, Missoula, MT, United States; The Wilderness Society, California Regional Office, 250 Montgomery St., Suite 210, San Francisco, CA, United States
Recommended Citation:
Travis Belote R.,Larson A.J.,Dietz M.S.. Tree survival scales to community-level effects following mixed-severity fire in a mixed-conifer forest[J]. Forest Ecology and Management,2015-01-01,353