Joe H. Scott
Year Published:

Cataloging Information

Fire Effects
Ecological - First Order
Ecological - Second Order
Fire Regime
Fire Intensity / Burn Severity
Fuel Treatments & Effects
Mechanical treatments
Montane dry mixed-conifer forest, Ponderosa pine woodland/savanna

NRFSN number: 8148
FRAMES RCS number: 5134
Record updated: July 5, 2018

Forest stands of fire-dependent ponderosa pine cover about 40 million acres (16 million ha) in the Western United States. Ponderosa pine is commonly found in pure stands on dry sites, but in more moist conditions, it is associated with Douglas-fir, lodgepole pine, western larch, and others. Historically, these were often widely spaced stands of large pines with an undergrowth of grasses and forbs. This structure was maintained by frequent surface fires that reduced invading tree species, rejuvenated the understory vegetation, and created a seedbed suitable for ponderosa pine regeneration. Today, by contrast, pine stands are dense, closed canopy stands, often with thickets of small trees in their understories. As a result, these forests are experiencing insect and disease epidemics
and severe wildfires.


Scott, Joe H. 1998. Reduce fire hazards in ponderosa pine by thinning. Fire Management Notes. 58(1): 20-25.

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