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A wildfire, forest fire, or a bushfire is an unplanned, uncontrolled and unpredictable fire in an area of combustible vegetation. [ 1 ] [ 2 ] Depending on the type of vegetation present, a wildfire may be more specifically identified as a bushfire ( in Australia ), desert fire, grass fire, hill fire, peat fire, prairie fire, vegetation fire, or ...
Although other characteristics of a forest will influence the impact of fire upon it, factors such as climate and topography play an important role in determining fire severity and fire extent. [39] Fires spread most widely during drought years, are most severe on upper slopes and are influenced by the type of vegetation that is growing.
For example, the Forest Fire Emergency Fund Act of 1908 permitted deficit spending in the case of emergency fire situations. [3] As a result, the U.S. Forest Service was able to acquire a deficit of over $1 million in 1910 due to emergency fire suppression efforts. [3]
The Canadian Interagency Forest Fire Centre (CIFFC) coordinates assistance between all provincial and territorial wildfire management agencies. [29] During a typical year there are over 9,000 forest fires in Canada, burning an average of 2.5 million hectares (ha) or 9,700 square miles (25,000 km 2). The number of fires and area burned can vary ...
The fire interval is the number of years between fires and is highly dependent on spatial scales. Fire rotation is a measure of the amount of fire in a landscape (the amount of time required to burn an area the size of the study area). The fire rotation statistic is best used for large areas that have mapped historic fire events. [6]
LANDFIRE offers a series of free vegetation dynamics models and descriptions that quantitatively describe the pre-European settlement succession and disturbance pathways for each major Ecological System in the U.S. [8] The descriptions are available as PDF and Word files; the ecological models are delivered as a database to be used with SyncroSim.
Actor James Woods broke down in tears during an interview on CNN as he described the wildfires that are ripping through southern California and forced him to evacuate his home in the Pacific ...
In Australia, the prevalence of eucalyptus trees that have oil in their leaves results in forest fires that are noted for their extremely tall and intense flame front. Hence the bush fires appear more as a firestorm than a simple forest fire. Sometimes, emission of combustible gases from swamps (e.g., methane) has a similar effect.
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