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Ecosystem

Displaying 1401 - 1420 of 5957 results

Developing standardised classification of post-fire responses is essential for globally consistent comparisons of woody vegetation communities. Existing classification systems are based on responses of species growing in fire-prone environments. To…
Author(s): Lynda D. Prior, David M. J. S. Bowman
Year Published:

Burning firebrands generated by wildland or prescribed fires may lead to the initiation of spot fires and fire escapes. At the present time, there are no methods that provide information on the thermal characteristics and number of such firebrands…
Author(s): Sergey Prohanov, Alexander I. Filkov, Denis P. Kasymov, Mikhail Agafontsev, Vladimir V. Reyno
Year Published:

Shifting fire regimes are substantially changing North American forests. It is thus critical to understand how wildfires affect forest wildlife, especially for species managed for harvest and for species at risk of extinction. In particular, many…
Author(s): Logan A. Volkmann, Jenna Hutchen, Karen E. Hodges
Year Published:

Forest fires at the wildland-urban interface are generating increasing losses due to the expansion of cities into adjacent forests. At the same time, urban green open spaces are highly valuable as sources of recreational, educational and aesthetic…
Author(s): Yaella Depietri, Daniel E. Orenstein
Year Published:

The objective of this work is to illustrate how to algorithmically integrate Machine-Learning Algorithms (MLA's) with multistage/multicomponent fire spread models. In order to tangibly illustrate this process, this work develops a framework for a…
Author(s): T. J. Zohdi
Year Published:

Increasing temperatures and irregular precipitation associated with climate change, along with increasing frequency and severity of wildfires, contribute to increased downstream transport of sediment and total organic carbon (TOC), with potential…
Author(s): Danielle Loiselle, Xinzhong Du, Daniel S. Alessi, Kevin D. Bladon, Monireh Faramarzi
Year Published:

Recent years have witnessed a growing number of stories about extreme wildfires that have had significant social impacts, from Australia to Portugal to California. Although this has heightened the call to find ways to better “coexist with fire,” it…
Author(s): Sarah M. McCaffrey, Tara K. McGee, Michael R. Coughlan, Fantina Tedim
Year Published:

Field measurements of surface dead fine fuel moisture content (FFMC) are integral to wildfire management, but conventional measurement techniques are limited. Automated fuel sticks offer a potential solution, providing a standardised, continuous and…
Author(s): Jane G. Cawson, Petter Nyman, Christian Schunk, Gary J. Sheridan, Thomas J. Duff, Kelsy E. Gibos, William D. Bovill, Marco Conedera, Gianni B. Pezzatti, Annette Menzel
Year Published:

Sutherland et al. (2020) used simulations from a physics-based numerical fire behaviour model to investigate the effect of the ignition protocol (namely length, direction and rate of ignition) on the spread rates measured in experimental fires. They…
Author(s): Miguel G. Cruz, Andrew L. Sullivan, Rachel Bessell, James S. Gould
Year Published:

Land treatments in wildland-urban interface (WUI) areas are highly visible and subject to public scrutiny and possible opposition. This study examines a contested vegetation treatment-Forsythe II-in a WUI area of the Arapaho-Roosevelt National…
Author(s): Hannah Brenkert-Smith, Jody L. Jahn, Eric A. Vance, Juan Ahumada
Year Published:

Destructive flash floods and debris flows are a common menace following wildfire. The restoration of protection provided by forests from post-fire floods and debris flows depends on the recovery of infiltration and attendant reduction of…
Author(s): Brian A. Ebel
Year Published:

Characterizing pre- and post-fire fuels remains a key challenge for estimating biomass consumption and carbon emissions from wildfires. Airborne laser scanning (ALS) data have demonstrated effectiveness for estimating canopy, and to a lesser degree…
Author(s): T. Ryan McCarley, Andrew T. Hudak, Aaron M. Sparks, Nicole M. Vaillant, Arjan J. H. Meddens, Laura Trader, Francisco Mauro, Jason Kreitler, Luigi Boschetti
Year Published:

Large wildfires (>50,000 ha) are becoming increasingly common in semi‐arid landscapes of the western United States. Although fuel reduction treatments are used to mitigate potential wildfire effects, they can be overwhelmed in wind‐driven…
Author(s): Susan J. Prichard, Nicholas A. Povak, Maureen C. Kennedy, David W. Peterson
Year Published:

Smoke emissions from wildland fires contribute to concentrations of atmospheric particulate matter and greenhouse gases, influencing public health and climate. Prediction of emissions is critical for smoke management to mitigate the effects on…
Author(s): Maureen C. Kennedy, Susan J. Prichard, Donald McKenzie, Nancy H. F. French
Year Published:

Wildland fire managers are increasingly embracing risk management principles by being more anticipatory, proactive, and “engaging the fire before it starts”. This entails investing in pre-season, cross-boundary, strategic fire response planning with…
Author(s): Matthew P. Thompson, Benjamin Gannon, Michael D. Caggiano, Christopher D. O’Connor, April Brough, Julie W. Gilbertson-Day, Joe H. Scott
Year Published:

Extreme fires have substantial adverse effects on society and natural ecosystems. Such events can be associated with the intense coupling of fire behaviour with the atmosphere, resulting in extreme fire characteristics such as pyrocumulonimbus cloud…
Author(s): Mercy N. Ndalila, Grant J. Williamson, Paul Fox-Hughes, J. Sharples, David M. J. S. Bowman
Year Published:

Research Highlights: This experiment compares a range of combinations of harvest, prescribed fire, and wildfire. Leveraging a 30-year-old forest management-driven experiment, we explored the recovery of woody species composition, regeneration of the…
Author(s): R. Kasten Dumroese, Martin F. Jurgensen, Deborah S. Page-Dumroese
Year Published:

Thermal heterogeneity provides options for organisms during extreme temperatures that can contribute to their fitness. Sagebrush (Artemisia spp.) communities exhibit vegetation heterogeneity that creates thermal variation at fine spatial scales.…
Author(s): Christopher R. Anthony, Christian A. Hagen, Katie M. Dugger, R. Dwayne Elmore
Year Published:

Goals of fostering ecological resilience are increasingly used to guide U.S. public land management in the context of anthropogenic climate change and increasing landscape disturbances. There are, however, few operational means of assessing the…
Author(s): Robert E. Keane, Sharon M. Hood, Rachel A. Loehman, Lisa M. Holsinger, Philip E. Higuera, Donald A. Falk
Year Published:

Modelling the spatial prioritisation of fuel treatments and their net effect on values at risk is an important area for applied work as economic damages from wildfire continue to grow. We model and demonstrate a cost-effective fuel treatment…
Author(s): Jason Kreitler, Matthew P. Thompson, Nicole M. Vaillant, Todd J. Hawbaker
Year Published: