Denali National Park and Preserve Fire Regime

Though seldom seen by visitors, periodic large-scale fires burn across Denali National Park and Preserve. The National Park Service manages ninety-three percent of the park as a Limited Management Option. This category recognizes areas where the cost of suppression may exceed the value of the resources to be protected and the exclusion of fire may be detrimental to the fire dependent ecosystem. The primary management strategies protect human life and specific resources and allow fire to contribute its natural role in the ecosystem.

The natural role of wildland fire at Denali varies considerably across the park and preserve's geographical zones. Much of Denali consists of higher elevations, including many glaciers and exposed rock in the Alaska Mountain Range; areas which lack substantial fuels and are not necessarily prone to fire. Fuel means combustible material such as grass, leaves, plants, shrubs and trees that feed a fire. South of the range, the receptivity of fuels to fire lessens due to higher levels of precipitation and humidity. The range blocks this wet moisture from traveling north, thus less precipitation falls on the boreal forest north of the range. North of the Alaska Range, fire has been a constant force of change for ten thousand years and persists as an inextricable environmental factor of the boreal forest.

Periodic fires of considerable size and intensity prevail north of the range, as evidenced by forest mosaic patterns and local history. Throughout time, fires have served to select plants and animals that adapted to fire-caused change. Both Black and White Spruce depend on intense ground fire to clear organic layers thereby exposing fertile seedbeds. Moreover, Black Spruce partially depends upon fire, in that it's seeds ready for germination at the peak of the Alaskan interior fire season and are released when its semi-serotinous cones open by canopy fire. Furthermore, fire plays a key role in the regulation of the permafrost table. Without the routine occurrence of fire, organic matter accumulates, the permafrost table rises, and ecosystem productivity declines. Vegetation communities, wildlife habitat and wildlife become less diverse. Fire, the agent of change, removes some of the insulating organic matter, elicits a warming of the soil, and maintains and rejuvenates these systems.

$200
There are a lot of ways things can go wrong in the backcountry, so cover as many safety bases as possible with the...
Price subject to change | Available through Backcountry.com
Featured Park
Rising above a scene rich with extraordinary wildlife, pristine lakes, and alpine terrain, the Teton Range stands monument to the people who fought to protect it. These are mountains of the imagination. Mountains that led to the creation of Grand Teton National Park where you can explore over two hundred miles of trails, float the Snake River or enjoy the serenity of this remarkable place.
Featured Wildlife
The pika is a close relative of the rabbits and hares, with two upper incisors on each side of the jaw, one behind the other. Being rock-gray in color, pikas are seldom seen until their shrill, metallic call reveals their presence.