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Understanding naturally occurring pine regeneration dynamics in response to thinning and burning treatments is necessary not only to measure the longevity of the restoration or fuels treatment, but also to assess how well regeneration meets forest…
Author(s): Tzeidle N. Wasserman, Amy E. M. Waltz, John Paul Roccaforte, Judith D. Springer, Joseph E. Crouse
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In fire-prone forests, postfire tree recovery may be limited by climate conditions and fire activity that exceed the range of conditions under which these forests evolved, leading to major shifts in forest structure and composition. Transformations…
Author(s): Tyler J. Hoecker, Monica G. Turner
Year Published:

Maximizing the effectiveness of fuel treatments at the landscape scale is a key research and management need given the inability to treat all areas at risk from wildfire, and there is a growing body of scientific literature assessing this need. We…
Author(s): Theresa B. Jain, Ilana L. Abrahamson, Nathaniel Anderson, Sharon M. Hood, Brice B. Hanberry, Francis F. Kilkenny, Shawn T. McKinney, Jeffrey E. Ott, Alexandra K. Urza, Jeanne C. Chambers, Michael A. Battaglia, J. Morgan Varner, Joseph O’Brien
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Analyses of the effects of topography, weather, land management, and fuel on fire severity are increasingly common, and generally apply fire severity indices derived from satellite optical remote sensing. However, these indices are commonly…
Author(s): Matthew G. Gale, Geoffrey J. Cary
Year Published:

Background: Low-severity prescribed fire is an important tool to manage fire-maintained forests across North America. In dry conifer forests of the western USA, prescribed fire is often used to reduce fuel loads in forests characterized historically…
Author(s): Victoria A. Saab, Quresh Latif, William M. Block, Jonathan G. Dudley
Year Published:

Wildfire occurrence and severity is predicted to increase in the upcoming decades with severe negative impacts on human societies. The impacts of upwind wildfire activity on glacier melt, a critical source of freshwater for downstream environments,…
Author(s): Caroline Aubry-Wake, André Bertoncini, John W. Pomeroy
Year Published:

This is the second part of a series of two papers concerning fire-spotting generated fires. While, in the first part, we focus on the impact of macro-scale factors on the growth of the burning area by considering the atmospheric stability conditions…
Author(s): Vera N. Egorova, Andrea Trucchia, Gianni Pagnini
Year Published:

Objectives: The increase in global wildland fire activity has accelerated the urgency to understand health risks associated with wildland fire suppression. The aim of this project was to identify occupational health research priorities for wildland…
Author(s): Chelsea A. Pelletier, Christopher Ross, Katherine Bailey, Trina Fyfe, Katie Cornish, Erica Koopmans
Year Published:

There is a general agreement within the wildfire community that exclusively top–down approaches to policy making and management are limited and that we need to build governance capacity to cooperatively manage across jurisdictional boundaries.…
Author(s): Branda Nowell, Toddi A. Steelman, Anne-Lise Knox Velez, Kate Albrecht
Year Published:

Forest biomass use for energy production is not only an increasingly popular renewable source of energy, but has also been proposed as a tool for forest management, which can help reduce the incidence of forest fires. Similarly, an adequate…
Author(s): Lígia Costa Pinto, Sara Sousa, Marieta Valente
Year Published:

There are thousands of communities and millions of homes in fire-prone wildland–urban interface (WUI) environments. Although future developments may be sited and designed to be more survivable and resistant to losses, an over-arching strategy is…
Author(s): Max A. Moritz, Rob Hazard, Kelly Johnston, Marc Mayes, Molly Mowery, Katie Oran, Anne-Marie L. Parkinson, David A. Schmidt, Graham Wesolowski
Year Published:

A combined imaging system that can monitor the visible flame, invisible hot flow, flame temperature and surface temperature was developed to investigate the combustion of wooden rods inclined at 30° under forced air flow. A micro wind tunnel is…
Author(s): Yufeng Lai, Xiao Wang, Thomas B.O. Rockett, Jon R. Willmott, Yang Zhang
Year Published:

Wildfires emit smoke particles and gaseous pollutants that greatly aggravate air quality and cause adverse health impacts in the western US (WUS). This study evaluates how wildfire impacts on air pollutants and air toxics evolve from the present…
Author(s): Cheng-En Yang, Joshua S. Fu, Yongqiang Liu, Xingyi Dong, Yang Liu
Year Published:

The COVID-19 global pandemic created dramatic change in nearly every facet of life, including how the Forest Service worked to fulfill its mission despite facing multiple unknowns fraught with risks. Preparing for and responding to wildland fire…
Author(s): Matthew P. Thompson, Donald G. MacGregor, David E. Calkin, Joel O. Iverson
Year Published:

Night-time provides a critical window for slowing or extinguishing fires owing to the lower temperature and the lower vapour pressure deficit (VPD). However, fire danger is most often assessed based on daytime conditions1,2, capturing what promotes…
Author(s): Jennifer Balch, John T. Abatzoglou, Maxwell B. Joseph, Michael J. Koontz, Adam L. Mahood, Joe McGlinchy, Megan E. Cattau, A. Park Williams
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Fire is a key determinant of vegetation structure and composition in ecosystems worldwide and is therefore an important management tool. The “pyrodiversity hypothesis”, which postulates that biodiversity will increase as fire diversity increases,…
Author(s): Michael D. Ulyshen, J. Kevin Hiers, Scott M. Pokswinksi, Conor Fair
Year Published:

Aim Wildfire activity in recent years is notable not only for an expansion of total area burned but also for large, single-day fire spread events that pose challenges to ecological systems and human communities. Our objectives were to gain new…
Author(s): Jonathan D. Coop, Sean A. Parks, Camille Stevens-Rumann, Scott M. Ritter, Chad M. Hoffman
Year Published:

Wildland fire incident management teams (IMTs) require sustained and coordinated decision-making across levels of authority during dynamic and high-risk events. Trust between team members is important for maintaining the efficient flow of…
Author(s): Claire Rapp, Robyn S. Wilson
Year Published:

We investigated the relative importance of daily fire weather, landscape position, climate, recent forest and fuels management, and fire history to explaining patterns of remotely-sensed burn severity – as measured by the Relativized Burn Ratio – in…
Author(s): C. Alina Cansler, Van R. Kane, Paul F. Hessburg, Jonathan T. Kane, Sean M.A. Jeronimo, James A. Lutz, Nicholas A. Povak, Derek J. Churchill, Andrew J. Larson
Year Published:

Background: Extreme, prolonged wildfire smoke (WFS) events are becoming increasingly frequent phenomena across the Western United States. Rural communities, dependent on contributions of nature to people’s quality of life, are particularly hard hit…
Author(s): Anna Humphreys, Elizabeth Walker, Gregory N. Bratman, Nicole A. Errett
Year Published: