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Ecosystem

Displaying 1501 - 1520 of 5894 results

The ‘Balbi model’ is a simplified steady-state physical propagation model for surface fires that considers radiative heat transfer from the surface area of burning fuel particles as well as from the flame body. In this work, a completely new version…
Author(s): Jacques Henri Balbi, François Joseph Chatelon, D. Morvan, Jean Louis Rossi, Thierry Marcelli, Frederic Morandini
Year Published:

The regular and consistent measurements provided by Earth observation satellites can support the monitoring and reporting of forest indicators. Although substantial scientific literature espouses the capabilities of satellites in this area, the…
Author(s): Samuel Hislop, Andrew Haywood, Simon D. Jones, Mariela Soto-Berelov, Andrew K. Skidmore, Trung H. Nguyen
Year Published:

Burn-over crew protection systems have been installed into fleets of rural wildland Fire-Fighting Vehicles (FFVs) in parts of Australia, successfully providing protection for crews in recent large fires. Research out of the Country Fire Authority (…
Author(s): Andrew Webb, Andy Gooden
Year Published:

SUMMARY: For more than a century in the US we have been suppressing fires, with unexpected and undesirable outcomes particularly in fire adapted and dependent ecosystems. Fires are increasing in size and duration, resulting in substantial loss of…
Author(s): Richard D. Stratton
Year Published:

Wildfire events have been impacting many parts of the United States. Of particular importance are the Wildland-Urban Interface (WUI) areas, where residential development exposes residents to increased risk from the threat of wildfire. However,…
Author(s): Benjamin Ghasemi, Gerard T. Kyle, James D. Absher
Year Published:

Wildfires are common across the Pacific Northwest, however climate change is projected to cause increases in wildfire activity and severity. Wildfires create a heterogeneous pattern across the landscape from severely burned areas to unburned patches…
Author(s): Arjan J. H. Meddens, Andrew T. Hudak, Crystal A. Kolden
Year Published:

Scholars, politicians, practitioners, and civil society increasingly call for sustainability transformations to cope with urgent social and environmental challenges. In sustainability transformations research, understandings of transformations are…
Author(s): David P. M. Lam, Elvira Hinz, Daniel J. Lang, Maria Tengö, Henrik von Wehrden, Berta Martín-López
Year Published:

Biomass burning is one of the critical components of the Earth system, significantly affecting atmospheric emissions and carbon budgets. Fires occurring in the interface between wildland and urban areas also have important socioeconomic effects,…
Author(s): M. Lucrecia Pettinari, Emilio Chuvieco
Year Published:

We assessed plant community succession following prescribed fire on ungrazed Wyoming big sagebrush steppe, eastern Oregon. Treatments were burned (Burn; September and October, 2002) and unburned (Control) sagebrush steppe. Herbaceous yield,…
Author(s): Jonathan D. Bates, Chad S. Boyd, Kirk W. Davies
Year Published:

Wildland-Urban Interface (WUI) fires, a worldwide problem, are gaining more importance over time due to climate change and increased urbanization in WUI areas. Some jurisdictions have provided standards, codes and guidelines, which may greatly help…
Author(s): Paolo Intini, Enrico Ronchi, Steven M. V. Gwynne, Noureddine Bénichou
Year Published:

Understanding the detailed physical and social context surrounding wildfire and WUI fire fatalities is crucial in terms of ensuring effective emergency management policy and practice. Studies of fatalities over prolonged periods ensure changing…
Author(s): Katharine Haynes, Karen C. Short, Gavriil Xanthopoulos, Domingos Xavier Viegas, Luís M. Ribeiro, Raphaele M. Blanchi
Year Published:

Beaver dams are gaining popularity as a low‐tech, low‐cost strategy to build climate resiliency at the landscape scale. They slow and store water that can be accessed by riparian vegetation during dry periods, effectively protecting riparian…
Author(s): Emily Fairfax, Andrew Whittle
Year Published:

Pyrogenic carbon (PyC) is a chemically stable form of carbon (C) generated during fire events and is one of the few legacies of fire recorded in soil; however, the significance of this material as a form of C storage in forest ecosystems has…
Author(s):
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Local and regional species extirpations may become more common as changing climate and disturbance regimes accelerate species’ in situ range contractions. Identifying locations that function as both climate and disturbance refugia is critical for…
Author(s): William M. Downing, James D. Johnston, Meg A. Krawchuk, Andrew G. Merschel, Joseph H. Rausch
Year Published:

Forests of the western U.S. are undergoing substantial stress from fire exclusion and increasing effects of climate change, altering ecosystem functions and processes. Changes in broad‐scale drivers of forest community composition become apparent in…
Author(s): Laura A. Marshall, Donald A. Falk
Year Published:

In wildland and other flame spread scenarios a spreading fire front often forms an elliptical shape, incorporating both forward and lateral spread. While lateral flame spread is much slower than forward rates of spread, it still contributes to the…
Author(s): Kun Zhao, Michael J. Gollner, Qiong Liu, Junhui Gong, Lizhong Yang
Year Published:

Background: Wildfires produce pyrogenic carbon (PyC) through the incomplete combustion of organic matter, and its chemical characterization is critical to understanding carbon (C) budgets and ecosystem functions in forests. Across western North…
Author(s): Anna C. Talucci, Lauren M. Matosziuk, Jeff A. Hatten, Meg A. Krawchuk
Year Published:

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: