DOI: 10.1016/j.foreco.2017.05.020
Scopus记录号: 2-s2.0-85020421991
论文题名: Surface fuel changes after severe disturbances in northern Rocky Mountain ecosystems
作者: Stalling C. ; Keane R.E. ; Retzlaff M.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2017
卷: 400 起始页码: 38
结束页码: 47
语种: 英语
英文关键词: Deposition
; Disturbance
; Fuel accumulation
; Fuel dynamics
Scopus关键词: Deposition
; Fire hazards
; Fires
; Forestry
; Hazards
; Landforms
; Accumulation rates
; Disturbance
; Douglas-fir beetle
; Exogenous disturbances
; Fuel accumulation
; Fuel dynamics
; Mountain pine beetle
; Northern Rocky Mountains
; Fuels
; Coleoptera
; Dendroctonus pseudotsugae
; Pinus mugo
英文摘要: It is generally assumed that severe disturbances predispose damaged forests to high fire hazard by creating heavy fuel loading conditions. Of special concern is the perception that surface fuel loadings become high as recently killed trees deposit foliage and woody material on the ground and that these high fuel loadings may cause abnormally severe fires. This study evaluated effects of severe, exogenous disturbance events, namely fire and beetles, on future fuel conditions through biannual field collections. We measured surface fuel deposition and accumulation rates for a number of forest types after severe wildfires, Douglas-fir beetle outbreaks, and mountain pine beetle outbreaks to quantitatively describe fuel dynamics for up to 10 years after the disturbance. Fuel deposition was measured from semi-annual collections of fallen biomass sorted into six fuel components (fallen foliage, twigs, branches, large branches, logs, and all other material) from a network of seven, one meter square litter traps established on 15 sites across the northern Rocky Mountains USA. We also measured fuel loadings of the same six fuel components on each plot every year until the end of the study. Results show that most foliage material fell within the first one to two years after disturbance and surface fuel loadings did not appear to increase substantially at any point during the 10 years of this study. Large woody material greater than 75 mm diameter was found infrequently in the litter traps. Our results suggest that there is little increase in fire hazard during the first 10 years after severe disturbance in the study sites sampled for this study. © 2017 Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/64221
Appears in Collections: 影响、适应和脆弱性
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作者单位: USDA Forest Service, Rocky Mountain Research Station, Missoula Fire Sciences Laboratory, 5775 Hwy 10 West, Missoula, MT, United States
Recommended Citation:
Stalling C.,Keane R.E.,Retzlaff M.. Surface fuel changes after severe disturbances in northern Rocky Mountain ecosystems[J]. Forest Ecology and Management,2017-01-01,400