Available Fuel

That portion of the total fuel that would actually burn under various environmental conditions.

Allometry

Allometry is the procedure of finding mathematic relations between two different parameters in order to allow assessing one measuring the other

Aerial Fuels

Standing and supported live and dead combustibles not in direct contact with the ground and consisting mainly of foliage, twigs, branches, stems, cones, bark, and vines. They normally coincide with the canopy fuel component.

Adjective Rating

a. A public information description of the relative severity of the current fire danger situation. b. Adjective description of value ranges depicting a level or class of a fuel characteristic

Activity Fuels

One side effect of many land management activities is an increase in the amount of available fuel. Fuels resulting from, or altered by, forestry practices such as timber harvest or thinning, as opposed to naturally created fuels are called Activity fuels. Branches and unmerchantable bolewood left on site after timber harvesting (slash) is the quintessential activity fuel. Other land management activities, such as pruning, herbicide application, non-commercial thinning, and even prescribed burning, also create activity fuel. Even prescribed burning in some cases creates “activity fuels” killing tree branches or whole trees.
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