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Ecosystem

Displaying 1401 - 1420 of 6037 results

In coniferous western forests, recent widespread tree mortality provided opportunities to test the long-held theory that forest cover loss increases water yield. We reviewed 78 studies of hydrologic response to standing-replacing (severe wildfire,…
Author(s): Sara A. Goeking, David G. Tarboton
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:

Fire interactions between multiple 1 m tall, 0.7 m diameter chamise shrubs was studied utilizing the Wildland-Urban Interface Fire Dynamics Simulator (WFDS, Mell et al., 2009). Two shrub arrangements were investigated. First, nine shrubs were placed…
Author(s): William Shannon, Chandana Anand, Babak Shotorban, Shankar M. Mahalingam
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:

The slow-moving flameless burning of wildland fuels (i.e. smouldering) can be difficult to detect and challenging to extinguish. Although previous research involving the smouldering of organic fuels (e.g. cotton, cellulose, peat) has investigated…
Author(s): Daniel A. Cowan, Wesley G. Page, Bret W. Butler, David L. Blunck
Year Published:

The understanding and prediction of large wildland fire events around the world is a growing interdisciplinary research area advanced rapidly by development and use of computational models. Recent models bidirectionally couple computational fluid…
Author(s): Janice L. Coen, Wilfrid Schroeder, Scott Conway, Leland W. Tarnay
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:

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:

Increases in burned area across the western US since the mid‐1980’s have been widely documented and linked partially to climate factors, yet evaluations of trends in fire severity are lacking. Here, we evaluate fire severity trends and their…
Author(s): Sean A. Parks, John T. Abatzoglou
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:

Restoration and rehabilitation treatments that manipulate vegetation can be expensive to implement but are infrequently evaluated to determine whether spending more improves intended outcomes. We assessed commonly implemented vegetation treatments…
Author(s): Seth Munson, Ethan O. Yackulic, Lucas S. Bair, Stella M. Copeland, Kevin L. Gunnell
Year Published:

Understanding the social acceptability of managing forest fuels to reduce wildfire risk is essential to achieving long-term investment in fuel management that is supported publicly and politically. Integrative Complexity Theory (ICT) examines how…
Author(s): Melinda R. Mylek, Jacki Schirmer
Year Published:

Red Flag Warnings (RFWs) issued by the National Weather Service in the United States (U.S.) are an important early warning system for fire potential based on forecasts of critical fire weather that promote increased fire activity, including the…
Author(s): Josh Clark, John T. Abatzoglou, Nicholas J. Nauslar, Alistair M. S. Smith
Year Published:

Previous research has suggested that prescribed fire will become more necessary in the northern Great Plains of the United States as woody encroachment and invasive plant species cover increase. Prescribed fire will likely become a more frequent…
Author(s): Katherine C. Kral-O'Brien, Kevin K. Sedivec, Benjamin A. Geaumont, Amanda L. Gearhart
Year Published:

This review examines the impact of prescribed fire on the water quality variables (a) sediment load and (b) limiting macronutrients in forested environments globally. We aim to characterize the forested environments subject to prescribed fire, to…
Author(s): Kipling Klimas, Patrick Hiesl, Donald L. Hagan, Dara Park
Year Published:

One of the most ubiquitous cause of worldwide deforestation and devastation of wildlife is fire. To control fire and reach the forest area in time is not always possible. Consequently, the level of destruction is often high. Therefore, predicting…
Author(s): Richa Sharma, Shalli Rani, Imran Memon
Year Published:

Disasters have become increasingly common, calling for the need to more fully understand the impacts of such events. This article presents a scoping review of the psychosocial impacts of wildland fires on children, adolescents and family functioning…
Author(s): Judith C. Kulig, Julia Dabravolskaj
Year Published:

This work reports characteristics of embers generated by torching trees and seeks to identify the important physical and biological factors involved. The size of embers, number flux and propensity to ignite spot fires (i.e. number flux of ‘hot’…
Author(s): Tyler R. Hudson, Ryan B. Bray, David L. Blunck, Wesley G. Page, Bret W. Butler
Year Published:

Research Highlights: Our results suggest that weather is a primary driver of resource orders over the course of extended attack efforts on large fires. Incident Management Teams (IMTs) synthesize information about weather, fuels, and order resources…
Author(s): Jude Bayham, Erin J. Belval, Matthew P. Thompson, Christopher J. Dunn, Crystal S. Stonesifer, David E. Calkin
Year Published:

Following a wildfire, regeneration to forest can take decades to centuries and is no longer assured in many western U.S. environments given escalating wildfire severity and warming trends. After large fire years, managers prioritize where to…
Author(s): Nicholas A. Povak, Derek J. Churchill, C. Alina Cansler, Paul F. Hessburg, Van R. Kane, Jonathan T. Kane, James A. Lutz, Andrew J. Larson
Year Published: