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Ecosystem

Displaying 1221 - 1240 of 5896 results

Key message: We have explored the impacts of forest thinning on wildland fire behavior using a process based model. Simulating different degrees of thinning, we found out that forest thinning should be conducted cautiously as there could be a wide…
Author(s): Tirtha Banerjee
Year Published:

A new burner is presented, designed to generate laminar and axisymmetric diffusion flames from wildland fuels. This burner consists of a porous sample holder where wildland fuel elements are deposited. The sample holder is mounted on a cylindrical…
Author(s): G. Severino, A. Cabrera, J. Contreras, P. Pinto, J.J. Cruz, A. Fuentes
Year Published:

Cheatgrass (Bromus tectorum) has increased the extent and frequency of fire and negatively affected native plant and animal species across the Intermountain West (USA). However, the strengths of association between cheatgrass occurrence or abundance…
Author(s): Matthew A. Williamson, Erica Fleishman, Ralph Mac Nally, Jeanne C. Chambers, Bethany A. Bradley, David S. Dobkin, David Board, Frank A. Fogarty, Ned Horning, Matthias Leu, Martha Wohlfeil Zillig
Year Published:

Post-incident studies provide direct and valuable information to further the scientific understanding of Wildland-Urban Interface (WUI) fires. Most post-incident studies involve data collection in the field (i.e. a 'research field deployment'). In…
Author(s): Benjamin Gaudet, Albert Simeoni, Steven M. V. Gwynne, Erica D. Kuligowski, Noureddine Bénichou
Year Published:

Public opinion of wildfire is often perceived to be negative and in support of fire suppression, even though research suggests public opinions have become more positive over the past few decades. However, most prior work on this topic has focused on…
Author(s): Alexandra Weill, Lauren M. Watson, Andrew Latimer
Year Published:

Variations in global patterns of burning and fire regimes are relatively well measured, however, the degree of influence of the complex suite of biophysical and human drivers of fire remains controversial and incompletely understood. Such an…
Author(s): Hamish G. Clarke, Trent D. Penman, Matthias M. Boer, Geoffrey J. Cary, Joseph B. Fontaine, Owen F. Price, Ross A. Bradstock
Year Published:

Most regulatory and certification agencies in Canada now require forest management plans to include some level of historical fire pattern approximation. As a result, sustainable forest management and enhancements to existing fire management policies…
Author(s): Ignacio San-Miguel, Nicholas C. Coops, Raphael D. Chavardes, David W. Andison, Paul D. Pickell
Year Published:

Extreme, downslope mountain winds often generate dangerous wildfire conditions. We used the wildfire spread model Fire Area Simulator (FARSITE) to simulate two wildfires influenced by strong wind events in Santa Barbara, CA. High spatial-resolution…
Author(s): Katelyn Zigner, Leila M. V. Carvalho, Seth H. Peterson, Francis M. Fujioka, Gert-Jan Duine, Charles Jones, Dar A. Roberts, Max A. Moritz
Year Published:

Wildfire is a natural element of many ecosystems as well as a natural disaster to be prevented. Climate and land usage changes have increased the number and size of wildfires in the last few decades. In this situation, governments must be able to…
Author(s): Adán Rodríguez-Martínez, Begoña Vitoriano
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:

Fire is a natural element of the landscape and thus, the environment would be different as we know it without its presence. Fire is accepted as a vital force in shaping biomes and, to some extent, has allowed us to persist through time and became '…
Author(s): Miriam Muñoz-Rojas, Paulo Pereira
Year Published:

Smoke from bushfires (also known as wildfires or forest fires) has blanketed large regions of Australia during the southern hemisphere summer of 2019/2020, potentially endangering residents who breathe the polluted air. While such air pollution is…
Author(s): Laura A. Milton, Anthony R. White
Year Published:

Significance: Wildfire emissions in the western United States have had increasingly larger impacts on air quality, health, and climate forcing in recent decades. However, our understanding of how wildfire plume composition evolves remains incomplete…
Author(s): Brett B. Palm, Qiaoyun Peng, Carley D. Fredrickson, Ben H. Lee, Lauren A. Garofalo, Matson A. Pothier, Sonia M. Kreidenweis, Delphine K. Farmer, Rudra P. Pokhrel, Yingjie Shen, Shane M. Murphy, Wade Permar, Lu Hu, Teresa L. Campos, Samuel R. Hall, Kirk Ullmann, Xuan Zhang, Frank Flocke, Emily V. Fischer, Joel A. Thornton
Year Published:

Spot fires caused by lofted embers (i.e., firebrands) can be a significant factor in the spread of wildland fires. Embers can be especially dangerous near the wildland urban interface (WUI) because of the potential for the fire to be spread near or…
Author(s): David L. Blunck, Bret W. Butler, John D. Bailey, Natalie S. Wagenbrenner
Year Published:

Firebrands are a leading cause of ignitionat the wildland urban interface and a driver of rapid fire spread during wildfires. Current studies which seek to evaluate this risk are limited by a paucity of data relating to the firebrand dynamics from…
Author(s): Rory Hadden
Year Published:

In NW of the Iberian Peninsula, the incidence of anthropogenic fires is very high and, due to the climatologic and topographical conditions, burnt soils are prone to high erosion risks. In recent years several environmental management techniques (…
Author(s): María Fernandez-Fernandez, Serafín J. González-Prieto
Year Published:

The long-term effectiveness of dry-forest fuels treatments (restoration thinning and prescribed burning) depends, in part, on the pace at which trees regenerate and recruit into the overstory. Knowledge of the factors that shape post-treatment…
Author(s): Allison K. Rossman, Jonathan D. Bakker, David W. Peterson, Charles B. Halpern
Year Published:

One of the primary conservation threats surrounding sagebrush (Artemisia spp.) ecosystems in the Intermountain West of the United States is the expansion and infilling of pinyon pine (Pinus edulis, P. monophylla) and juniper (Juniperus spp.)…
Author(s): Jason R. Reinhardt, Steven K. Filippelli, Michael J. Falkowski, Brady W. Allred, Jeremy D. Maestas, John Carlson, David E. Naugle
Year Published:

The prediction of wildfire rate of spread and growth under high wind speeds and dry fuel moisture conditions is key to taking proactive actions to warn and in turn protect communities. We used two datasets of wildfires spreading under critical fire…
Author(s): Miguel G. Cruz, Martin E. Alexander, Paulo M. Fernandes, Musa Kilinc, Ângelo Sil
Year Published:

Large-scale, high-severity wildfires are a major challenge to the future social-ecological sustainability of fire-adapted forest ecosystems in the American West. Managing forests to mitigate this risk is a collective action problem requiring…
Author(s): Susan Charnley, Erin C. Kelly, A. Paige Fischer
Year Published: