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Prescribed fire

Science Spotlights

Prescribed crown fire at Manning Creek, Fishlake National Forest. Photo credit: Roger Ottmar. Photo taken: June 2019
The broad consensus among fire and fuel scientists and managers is that we need to reduce hazardous fuel accumulations on many more acres to mitigate the risk and severity of wildfires. But mechanical fuel treatments are expensive! Prescribed fire is a more cost effective tool to reduce fuel loads and to restore and maintain fuel conditions to something closer to the historical norm.
The photo shows a land management personel in a grassland setting in the Chihuahuan Desert with a controlled burn in the foreground.
Using the best available science and tools, we can project the effects of today’s management actions on tomorrow’s non-forest vegetation assemblage, carbon, and productivity while considering changing climates. 
Prescribed fire operations in Underdown Canyon Demonstration Project.
The use of prescribed fire to reduce expansion of pinyon and juniper to sagebrush ecosystems is a commonly used by managers but can have unwanted consequences. In this Joint Fire Sciences Program Demonstration Project, we show how seeding native species after prescribed fire can decrease invasion of nonnative annual grasses in sites with low resistance.
During and after fire
Each year wildland fires kill and injure trees on millions of forested hectares globally, causing both positive and negative impacts to plant and animal biodiversity, carbon storage, hydrologic processes, and ecosystem services. Understanding the underlying mechanisms of fire-caused tree mortality is important to accurately predict mortality, estimate fire-driven feedbacks to the global carbon cycle, extrapolate to novel future conditions, and...
Big sage mountain brush
An unprecedented conservation effort is underway across 11 Western states to address threats to sagebrush ecosystems and the many species that depend on them. Today, the Department of Agriculture and the Department of Interior released the Science Framework for Conservation and Restoration of the Sagebrush Biome (Part 2). The Science Framework provides a transparent, ecologically responsible approach for making policy and management decisions...
decorative image of native american artifacts
This research looks at opportunities to utilize traditional phenological knowledge to support adaptive management of social-ecological systems vulnerable to changes in climate and fire regimes. Integrating phenological knowledge into natural resource stewardship is important in making land management decisions. Indigenous knowledge of seasonal change adds a broader ecological knowledge base in the context of changing and vulnerable social and...
The Mexican spotted owl is listed as a Threatened Species under the Endangered Species Act and is vulnerable to habitat loss from wildfire and climate change. RMRS scientists are leading a cutting-edge modeling effort to predict the interactive effects of forest restoration, wildfire, and climate change on the distribution, population size, and population connectivity of Mexican spotted owl across the Southwestern United States.  
A firefighter lights a prescribed fire with a drip torch.
Some objectives for prescribed fire include reducing fuel loads and fuel continuity, returning fire to an ecosystem, enhancing wildlife habitats, improving forage, preparing seedbeds, improving watershed conditions, enhancing nutrient cycling, controlling exotic weeds, and enhancing resilience from climate change. Regardless of the particular objective, fire affects ecosystem structure, composition, and function in many ways.
Lodgepole forest cut Tenderfoot Creed Experimental Forest
Many lodgepole pine forests in Montana were historically a mix of ages and tree sizes as a result of mixed-severity fires. Now the forests have trees mostly the same size and crowns touch so that when fires burn, they burn as large and severe crown fires. This study looked twelve years after two patterns of thinning and burning, to see if the cutting patterns and regrowth could influence fire behavior. 
Young trees act as ladder fuel when they grow under large trees on Back Hills Experimental Forest Service.
Scientists across four experimental forests (Preist River, Black Hills, Boise Basin, and Deception Creek) worked to provide a suite of ecosystem services from removing fuels to implementing new strategies. Treatment goals were to increase the diversity of forest conditions across the landscapes and provide for a variety of ecosystem service, such as wildlife habitat, wild berries, wood for construction, and hunting opportunities.  

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