DOI: 10.1016/j.foreco.2017.07.009
Scopus记录号: 2-s2.0-85025110279
论文题名: Effects of climate on the size of wildfires in the Eucalyptus camaldulensis forests and the dry lands of the Riverina Bioregion, Australia
作者: Zhang Y. ; Lim S. ; Sharples J.J.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2017
卷: 401 起始页码: 330
结束页码: 340
语种: 英语
英文关键词: Ambient weather
; Antecedent rainfall
; Fire size
; Forested wetland
; River red gum
; Riverine forest
Scopus关键词: Deforestation
; Ecology
; Ecosystems
; Forestry
; Losses
; Meteorology
; Rain
; Risk management
; Wetlands
; Ambient weather
; Antecedent rainfall
; Fire size
; Forested wetlands
; River red gums
; Riverine forest
; Fires
; Eucalyptus camaldulensis
英文摘要: Wildfire affects ecosystem processes, threatens human lives and causes economic loss. In forested wetlands of inland Australia, a better understanding of fire regime pattern is required given the dense population of fire-sensitive species such as Eucalyptus camaldulensis (river red gum). This study aims to investigate wildfire characteristics and the effects and relative contributions of ambient weather and antecedent rainfall on fire size in forested wetlands and the surrounding dry lands of the Riverina bioregion, New South Wales, Australia. Fires burned entirely in forested wetlands (FEW), fires burned partly in forested wetlands (FPW) and fires that did not burn in forested wetlands (FNW), are progressively incorporated into statistical analyses, in order to explore the change of effects and contributions of factors as the fuel type changes from litter/grass to shrub/grass. Forested wetlands and dry lands experience summer and spring-summer fire regime, respectively. Higher cumulative rainfall conditions of the 6th, 13-14th and 17-18th months before fire drive a larger size of FEW, while a number of factors representing the cumulative rainfall after the 18th month before fire positively affect fire size when FPW and FNW are being modelled. A larger fire extent is also driven by severer ambient weather conditions. Forest Fire Danger Index (FFDI) is more powerful in explaining the size of FEW, while the daily temperature becomes more effective when FPW and FNW are gradually incorporated, which supports the use of respective factors as indicators of fire danger in the two diverse ecosystems. Antecedent rainfall factors are more powerful than ambient weather in explaining the size of FEW, while they become less important when the surrounding lands are incorporated. After a high level of rainfall and under similar ambient weather conditions, priority of fire risk management may be given to forested wetlands since fire size is more sensitive to biomass accumulation in forested wetlands than in the adjacent dry lands. © 2017 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/64191
Appears in Collections: 影响、适应和脆弱性
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作者单位: School of Civil and Environmental Engineering, The University of New South Wales, Sydney, NSW, Australia; School of Physical, Environmental and Mathematical Sciences, The University of New South Wales, Canberra, ACT, Australia
Recommended Citation:
Zhang Y.,Lim S.,Sharples J.J.. Effects of climate on the size of wildfires in the Eucalyptus camaldulensis forests and the dry lands of the Riverina Bioregion, Australia[J]. Forest Ecology and Management,2017-01-01,401