Fact Sheet / Brief
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Although fuels treatments are generally shown to be effective at reducing fire severity, there is widespread interest in monitoring that efficacy as the climate continues to warm and the incidence of extreme fire weather increases. This paper compared basal area mortality across adjacent treated and untreated sites in the 2021 Dixie Fire of California’s Sierra Nevada.
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Researchers at Utah State University studied the Old Woman South Prescribed Fire project, planned and implemented by U.S. Forest Service and Utah Division of Forestry, Fire and State Lands personnel on the Fishlake National Forest and adjacent private lands in 2022-23. The research examined perceptions of agency personnel, landowners, and other affected persons about the project, which included strong efforts to maintain communication and collaboration among agency personnel, landowners, and other affected persons, using a prescription designed to minimize the risk of escape or loss of valued resources.
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In this Utah State University study, we began by reviewing published academic literature, focusing on the few studies conducted in Utah. To dig deeper, we focused on concerns raised in Summit County, where prescribed burning has drawn considerable public attention and occasional opposition. Finally, we conducted a preliminary online survey of wildland-urban interface (WUI) residents across the state to assess initial levels of concern and/or support for prescribed fire.
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Sagebrush ecosystems, broadly distributed across western North America (see map), are imperiled due to a combination of modern and historical factors causing widespread degradation and habitat loss. Sagebrush shrubs are so common in these ecosystems that they create a “sea” across the landscape. This poster highlights wildflowers (forbs) common in sagebrush vegetation of the Great Basin.
These wildflowers support countless wildlife species, including some species only found in sagebrush ecosystems, such as the greater sage-grouse. (See “High sage-grouse value.”) Many forb species (including most featured here) are highly valued and used for food, medicine and ceremony by the many Indigenous peoples of the Great Basin. There are hundreds of forb species in sagebrush ecosystems, all with their own unique characteristics. The 31 species on this poster highlight common species potentially useful in restoration. These species also represent the variety of size, height, flowering timing and taxonomy (evolutionary relationships) found in typical sagebrush communities. Note: These species rarely, if ever, occur as closely together as shown in this poster.
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The word “risk” is often used informally to talk about feelings of danger or chances of loss. When communicating about wildfire risk, both inside the Forest Service and with the public and others, careful and intentional use of the term “risk” is more likely to increase shared understanding of all involved. What does “risk” mean? How is risk measured? How can wildfire risk be reduced? Can wildfire risk be eliminated? Here, we share definitions of risk in a technical sense, consistent with how the insurance industry considers risk. We focus mainly on wildfire risk related to communities, and how that risk can be reduced.
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An extreme multi-year drought with extensive bark beetle outbreaks in California from 2012 to 2016 killed an estimated 147 million trees. This included ponderosa pine, incense cedar, white fir, and pinyon pine, rapidly changing forests over vast areas. Recently published work by Rocky Mountain Research Station (RMRS) researchers Sharon Hood and Charlotte Reed found that major tree mortality events like these increase surface and canopy fuels— dead needles, branches, and logs— which may result in more extreme forest fires and increased emissions when these areas burn. “Hopefully, this research heightens awareness about how quickly our forests can change under extreme mortality events and the potential long-lasting hazards that are created,” says Hood.
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Livestock grazing is a common use of rangelands that can be managed to support rangeland health, including the wide array of ecosystem services that benefit society from public lands and private lands. This requires careful allocation of naturally occurring forage on large landscapes for both domestic and wild herbivores. Managers know grazing can sustain rangeland health as long as they time it right and balance the duration, frequency, and intensity of the grazing. However, forage production on a single area or landscape varies significantly from year to year, which, until recently, has limited the accuracy of data available to managers when they make decisions about grazing.
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In the western United States, wildfire activity has increased the exposure of communities to fires that can devastate lives and destroy homes and businesses. As fires encroach on urban areas, protecting communities from wildfire impacts is a top priority for fire managers. Scientists studying wildland fire in the wildland urban interface (WUI) are particularly interested in using historical data and analytic models to understand how to reduce risks to the WUI.
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Forest management offers a diverse toolkit for delivering carbon benefits, with biochar fitting in as a cornerstone in combination with other climate-smart practices. For example, selective thinning can help promote healthier stands that capture more carbon while reducing fire risk. In turn, this generates more merchantable timber, which when used
sustainably, can also serve as a long-term carbon store, further offsetting emissions. Additionally, forests can be strategically managed to promote reforestation and afforestation efforts, expanding overall carbon sequestration potential.
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Mechanical thinning of forests is one method used to prevent high intensity wildfire and create a more open overstory. This Science You Can Use outlines how this treatment benefits native understory plants like grasses and sedges. Forests that were treated had higher understory species diversity, and native understory plants were more abundant. This research helps to inform restoration and forest management practices.