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Displaying 241 - 260 of 5651

Aim Ecological disturbances are increasing as climate warms, and how multiple disturbances interact spatially to drive landscape change is poorly understood. We quantified burn severity across fire regimes in reburned forest landscapes to ask how…
Author(s): Brian J. Harvey, Michele S. Buonanduci, Monica G. Turner
Year Published:

Post-fire debris flows represent one of the most erosive consequences associated with increasing wildfire severity and investigations into their downstream impacts have been limited. Recent advances have linked existing hydrogeomorphic models to…
Author(s): Sara A. Wall, Brendan P. Murphy, Patrick Belmont, Larissa L. Yocom
Year Published:

Indigenous land stewardship and mixed-severity fire regimes both promote landscape heterogeneity, and the relationship between them is an emerging area of research. In our study, we reconstructed the historical fire regime of Ne Sextsine, a 5900-ha…
Author(s): Kelsey Copes-Gerbitz, Lori D. Daniels, Shannon M. Hagerman
Year Published:

The wildfire season in the Western United States (U.S.) was anomalously large in 2020, with a majority of burned area due to lightning ignitions resulting in overall fire emissions of carbon monoxide (CO) in the Western region almost 3 times the…
Author(s): Isabel S. Albores, Rebecca R. Buchholz, Ivan Ortega, Louisa K. Emmons, James W. Hannigan, Forrest Lacey, Gabriele G. Pfister, Wenfu Tang, Helen M. Worden
Year Published:

Background: Wildfires propagate through vegetation exhibiting complex spread patterns modulated by ambient atmospheric wind turbulence. Wind gusts at the fire-front extend and intensify flames causing direct convective heating towards unburnt fuels…
Author(s): Marwan Katurji, Bob Noonan, Jiawei Zhang, Andres Valencia, Benjamin Shumacher, Jessica Kerr, Tara Strand, H. Grant Pearce, Peyman Zawar-Reza
Year Published:

Large quantities of dead wood can be generated by disturbances such as wildfires. Dead trees created by disturbances play many critical ecological roles in forest ecosystems globally. The ability of deadwood to serve its ecological roles is…
Author(s): David B. Lindenmayer, Lachlan McBurney, Wade Blanchard
Year Published:

The concept of discrete fuels provides a good representation of the real fire scenario. Many efforts on this issue have been conducted with the aid of heat transfer analyses, while little work has focused on the mass transfer analyses, nor…
Author(s): Xiaojin Zhang, Tianwei Chu, Liming Jiang, Guoqing Zhu, Xin Xu, Zhenkun Wu
Year Published:

Plantations of trees are key sources of wood products globally and are increasing in extent in many jurisdictions around the world. Plantations also can be flammable and fire prone with extensive areas of the existing plantation estate being burnt…
Author(s): David B. Lindenmayer, Marta Yebra, Geoffrey J. Cary
Year Published:

The wildland-urban interface (WUI), where housing intermingles with wildland vegetation, is the fastest-growing land use type in the United States. Given the ecological and social benefits of forest ecosystems, there is a growing need to more fully…
Author(s): Nancy Sonti, Rachel Riemann, Miranda H. Mockrin, Grant M. Domke
Year Published:

Background: Understanding near-surface fire–atmosphere interactions at turbulence scale is fundamental for predicting fire spread behaviour. Aims: This study aims to investigate the fire–atmosphere interaction and the accompanying energy transport…
Author(s): Jiawei Zhang, Marwan Katurji, Peyman Zawar-Reza, Tara Strand
Year Published:

Rapidly identifying high-risk areas for potential wildfires is crucial for preparedness, disaster management, and operational logistics decisions. With the advancement of technologies such as Cloud computing, high-risk areas can be determined ahead…
Author(s): Ujjwal KC, Saurabh Garg, J. E. Hilton, Jagannath Aryal
Year Published:

Firebrand spotting is a major cause for structure losses in wildland-urban interface (WUI) fires. When firebrands land nearby and accumulate into groups or piles, they can act as a more competent ignition source compared to single firebrands. While…
Author(s): Luqing Zhu, James Urban
Year Published:

The concurrent impacts of fire suppression, climate-warming, and industrial forestry have dramatically altered the spatio-temporal patterns of fire across the globe. Pyrophilic insects are among the species most threatened by these changes due to…
Author(s): Aaron J. Bell
Year Published:

Increasing fire activity and the associated degradation in air quality in the United States has been indirectly linked to human activity via climate change. In addition, direct attribution of fires to human activities may provide opportunities for…
Author(s): Therese S. Carter, Colette L. Heald, Noelle E. Selin
Year Published:

Background Wildfire management is increasingly shifting from firefighting to wildfire prevention aiming at disaster risk reduction. This implies fuel and landscape management and engagement with stakeholders. This transition is comparable to the…
Author(s): Hugo A. Lambrechts, Spyridon Paparrizos, Robijn Brongersma, Carolien Kroeze, Falco Ludwig, Cathelijine Stoof
Year Published:

Disruption of photosynthesis and carbon transport due to damage of the tree crown and stem cambial cells, respectively, can cause tree mortality. It has recently been proposed that fire-induced dysfunction of xylem plays an important role in tree…
Author(s): Raquel Partelli Feltrin, Alistair M. S. Smith, Henry D. Adams, R. Alex Thompson, Crystal A. Kolden, Kara M. Yedinak, Daniel M. Johnson
Year Published:

Columbian sharp-tailed grouse (Tympanuchus phasianellus columbianus) are endemic to grassland and shrub-steppe ecosystems of western North America, yet their distribution has contracted to <10% of their historical range. Primary threats to…
Author(s): Bryan S. Stevens, Courtney J. Conway, Jeffrey M. Knetter, Shane B. Roberts, Patrick Donnelly
Year Published:

Soil temperature extremes are not uncommon when woody fuels are ignited in prescribed burns or wildfires. Whether this leads to substantial loss of soil organic matter or microbial life is unclear. We created a soil heat gradient by burning four…
Author(s): Matt Busse, Carol J. Shestak, Ken R. Hubbert
Year Published:

Wildfires are complex phenomena, both in time and space, in ecosystems. The ability to understand wildfire dynamics and to predict the behaviour of the propagating fire is essential and at the same time a challenging practice. A common approach to…
Author(s): Maryam Ghodrat, Farshad Shakeriaski, Sayyed Aboozar Fanaee, Albert Simeoni
Year Published:

Background In July 2012, a lightning strike ignited the Arapaho Fire in the Laramie Mountains of Wyoming and burned approximately 39,700 ha. This high-severity fire resulted in 95% mortality of ponderosa pine (Pinus ponderosa P. & C. Lawson) at…
Author(s): Stephanie M. Winters, Linda T. A. van Diepen
Year Published: