DOI: 10.1016/j.foreco.2017.04.028
Scopus记录号: 2-s2.0-85018385200
论文题名: The effect of silvicultural treatments on fire behaviour potential in radiata pine plantations of South Australia
作者: Cruz M.G. ; Alexander M.E. ; Plucinski M.P.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2017
卷: 397 起始页码: 27
结束页码: 38
语种: 英语
英文关键词: Crown fire initiation
; Fire management
; Fire modelling
; Fireline intensity
; Forest fire
; Fuel management
; Pinus radiata
; Pruning
; Thinning
Scopus关键词: Deforestation
; Fires
; Forestry
; Crown fires
; Fire management
; Fire modelling
; Fireline intensity
; Forest fires
; Fuel management
; Pinus radiata
; Pruning
; Thinning
; Fuels
; Pinus radiata
; Radiata
英文摘要: Large plantations of radiata pine (Pinus radiata Don) are susceptible to widespread damage from wildfires that compromise the sustainability of forest production and downstream industries. Fuel management zones, strategically located plantation areas where an intensive silvicultural prescription comprising multiple prunings and thinnings aim to constrain the onset and spread of crown fires, have been implemented for decades in Australia, although their effectiveness has yet to be quantified. We aimed to quantify the effect of these silvicultural-based fuel management prescriptions on fuel complex structure and fire behaviour potential. We characterised fuel complex structure associated with the various silviculture treatments and contrasted it with stands representative of the standard silvicultural regime. This information and local weather were used to estimate fire potential in fuel management zones and control stands. We found the pruning and thinning fuel treatments significantly changed the plantation fuel complex, relocating ladder and canopy fuels to the surface layer, while breaking up fuel vertical continuity. Key beneficial effects such as the decrease in the vertical continuity of the fuel complex were found to be long lasting, whereas disadvantageous effects such as the increase in surface fuel load were short lived. The fuel management zone prescriptions resulted in significantly lower fireline intensity (e.g., first thinning reduced mean intensity during Very High Fire Danger days from 8613 to 760 kW m−1) and likelihood of crowning (e.g., second pruning reduced the incidence of crowning during Very High Fire Danger days from 25% to nil) under a broad range of burning conditions. Analysis of the effect of silvicultural operations conducted in fuel management zones should not view each operation independently, but as a process where a succession of treatments transforms a highly “flammable” fuel complex into a low one early in the rotation. © 2017 Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/64315
Appears in Collections: 影响、适应和脆弱性
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作者单位: CSIRO, GPO Box 1700, Canberra, ACT, Australia; Wild Rose Fire Behaviour, 180 - 50434 Range Road 232, Leduc County, Alberta, Canada
Recommended Citation:
Cruz M.G.,Alexander M.E.,Plucinski M.P.. The effect of silvicultural treatments on fire behaviour potential in radiata pine plantations of South Australia[J]. Forest Ecology and Management,2017-01-01,397