The Effects of Prescribed Fire and Thinning Restoration Treatments on Forest Floor Fuel Loading in Warm/Dry Mixed Conifer Forests in Southwestern Colorado, USA
Warm/dry mixed conifer forests are dominated by fire-tolerant ponderosa pine (Pinus ponderosa), Douglas-fir (Pseudotsuga menziesii) and mesic species such as white fir (Abies concolor), and aspen (Populus tremuloides). Fire suppression over the last century has caused an increase in tree density and a shift towards mesic species moving the forest away from its historical make-up (Korb et al., 2012). Fuel-reduction treatments are one of the highest priorities in the management of western United States forests today (Kobziar et al., 2006). Fire treatments can lose their effectiveness within 10-20 years if
regeneration densities are not controlled (Battaglia et al., 2008). Fire may be the best tool available for land managers to fight wild fires, and restore historical fire regimes and forest structure.