Guide to fuel treatments in dry forests of the western United States: assessing forest structure and fire hazard
Morris C. Johnson, David Lawrence Peterson, Crystal L. Raymond, Pacific Northwest Research Station (Portland, Or.)
U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, 2007 - Nature - 322 pages
The Fire and Fuels Extension of the Forest Vegetation Simulator (FFE-FVS) was used to calulate the immediate effects of treatments on surface fuels, fire hazard, potential fire behavior, and forest structure for respresentative dry forest stands in the Western United States. Treatments considered included pile and burn and prescribed fire.
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Region 1Lewis and Clark National Forest 1
Region 3Carson National Forest 2
10 other sections not shown
attribute 1 yr Basal area ft2 basal area mortality base height ft bulk density kg/m3 Canopy base height Canopy bulk density Canopy cover percent Crown competition factor crown fire potential Crowning index Severe d.b.h. limit Thin diameter at breast Douglas-fir effect on fuels fire behavior fire Moderate Surface fire Surface fuel Flame length ft fuel loadings tons/ac fuels and fire Hard snags stems/ac Merchantable volume ft3 Model Weight Model Moderate Surface Surface Passive Passive Passive Passive Surface Surface Pile and burn ponderosa pine Potential basal area potential flame lengths Prescribed fire Surface Quadratic mean diameter severe fire weather Severe Moderate Severe Severe Surface Surface Stand density index Surface fuel loadings Surface fuel treatment Surface Hard snags Surface Passive Surface Surface Severe Surface Surface Surface Hard Surface Surface Passive Surface Surface Severe Surface Surface Surface Torching index Severe Total volume ft3 Trees per acre Type of fire Weight Model Weight yrs 50 yrs