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Ecosystem

Displaying 1321 - 1340 of 6066 results

Highlights: A review of active fire remote sensing using EO satellites is presented. Different approaches for fire detection and characterization are compared and contrasted. Main satellite active fire products and their applications are summarised…
Author(s): Martin J. Wooster, Gareth Roberts, Louis Giglio, David P. Roy, Patrick H. Freeborn, Luigi Boschetti, Christopher O. Justice, Charles Ichoku, Wilfrid Schroeder, Diane Davies, Alistair M. S. Smith, Alberto Setzer, Ivan A. Csiszar, Tercia Strydom, Philip Frost, Tianran Zhang, Weidong Xu, Mark C. de Jong, Joshua M. Johnston, Luke Ellison, Krishna P. Vadrevu, Jessica L. McCarty, Veerachai Tanpipat, Christopher Schmidt, Jesus San-Miguel-Ayanz
Year Published:

A key pursuit in contemporary ecology is to differentiate regime shifts that are truly irreversible from those that are hysteretic. Many ecological regime shifts have been labeled as irreversible without exploring the full range of variability in…
Author(s): Christine H. Bielski, Rheinhardt Scholtz, Victoria M. Donovan, Craig R. Allen, Dirac Twidwell
Year Published:

Runoff and erosion processes can increase after wildfire and post‐fire salvage logging, but little is known about the specific effects of soil compaction and surface cover after post‐fire salvage logging activities on these processes. We carried out…
Author(s): Sergio A. Prats, Maruxa C. Malvar, Joseph W. Wagenbrenner
Year Published:

Woody plant expansions are altering ecosystem structure and function, as well as fire regimes, around the globe. Tree‐reduction treatments are widely implemented in expanding woodlands to reduce fuel loads, increase ecological resilience, and…
Author(s): Stephanie M. Freund, Beth A. Newingham, Jeanne C. Chambers, Alexandra K. Urza, Bruce A. Roundy, J. Hall Cushman
Year Published:

Determining whether forest landscapes can maintain their resilience to fire–that is, their ability to rebound and sustain their current composition and structure–in the face of rapid climate change and increasing fire activity is a pressing…
Author(s): Monica G. Turner, Adena R. Rissman, Anthony L. Westerling, Rupert Seidl
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Decision support systems (DSSs) are increasingly common in forest and wildfire planning and management in the United States. Recent policy direction and frameworks call for collaborative assessment of wildfire risk to inform fuels treatment…
Author(s): Melanie M. Colavito
Year Published:

In the near future, a higher occurrence of wildfires is expected due to climate change, carrying social, environmental, and economic implications. Such impacts are often associated with an increase of post‐fire hydrological and erosive responses,…
Author(s): Ana Rita Lopes, Antonio Girona-García, Sofia Corticeiro, Ricardo Martins, Jan J. Keizer
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Recent wildland fire disasters have attracted interest from a variety of disciplines seeking to reduce impacts of fire on people and natural resources. Architecture, insurance and reinsurance, city and county government, and engineering sectors have…
Author(s): Mark A. Finney
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For over 100 years, the US Forest Service (USFS) has developed initiatives to improve safety outcomes. Herein we discuss the engineered solutions used from 1910 through 1994, when the agency relied on physical science to address the hazards of…
Author(s): David Flores
Year Published:

Climate change is projected to exacerbate the intensity of heat-waves and drought, leading to greater incidences of large and high-intensity wildfires in forested ecosystems. While commonly-used remotely-sensed spectral assessments can provide…
Author(s): Alex W. Kirkpatrick
Year Published:

A long-term study at Lick Creek demonstrates how fuel treatments in dry forests provide benefits beyond mitigating the chance of a high-severity fire.
Author(s): Nehalem C. Clark
Year Published:

The dead foliage of scorched crowns is one of the most conspicuous signatures of wildland fires. Globally, crown scorch from fires in savannas, woodlands, and forests causes tree stress and death across diverse taxa. The term crown scorch, however,…
Author(s): J. Morgan Varner, Sharon M. Hood, Doug P. Aubrey, Kara M. Yedinak, J. Kevin Hiers, William Matt Jolly, Timothy M. Shearman, Jennifer K. McDaniel, Joseph J. O'Brien, Eric Rowell
Year Published:

Wildfire disasters on overhead transmission lines seriously threaten the safe and stable operation of large power grids and the normal use of electricity. After a wildfire occurs near a transmission line, it is often inefficient to take measures…
Author(s): Yu Liu, Bo Li, ChuanPing Wu, Baohui Chen, TeJun Zhou
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Common land-surface disturbances in rangelands with potential to influence the resistance and resilience of the ecosystem include livestock grazing and fire. The impact of these land-use disturbances on the soil microbial community is important to…
Author(s): Jacob Comer, Lora Perkins
Year Published:

Computational models of wildfires are necessary for operational prediction and risk assessment. These models require accurate spatial fuel data and remote sensing techniques have ability to provide high spatial resolution raster data for landscapes…
Author(s): Ritu Taneja, J. E. Hilton, Luke Wallace, Karin J. Reinke, Simon D. Jones
Year Published:

Firebrands are a widely observed phenomenon in wildland fires, which can transport for a long distance, cause spot ignition in the wildland–urban interface (WUI) and increase the rate of wildfire spread. The flame attached to a moving firebrand…
Author(s): Caiyi Xiong, Yanhui Liu, Cangsu Xu, Xinyan Huang
Year Published:

Extreme wildfires are increasing in frequency globally, prompting new efforts to mitigate risk. The ecological appropriateness of risk mitigation strategies, however, depends on what factors are driving these increases. While regional syntheses…
Author(s): Erin J. Hanan, Jianning Ren, Christina Tague, Crystal A. Kolden, John T. Abatzoglou, Ryan R. Bart, Maureen C. Kennedy, Mingliang Liu, Jennifer C. Adam
Year Published:

The National Cohesive Wildland Fire Management Strategy (hereafter: Cohesive Strategy) mandates the restoration and maintenance of landscapes, with the goal that “landscapes across all jurisdictions are resilient to fire-related disturbances in…
Author(s): Sharon M. Hood, Donald A. Falk, Martin Nie
Year Published:

The main purpose of this study was to characterise the thermal environment and risk of heat burns of wildland firefighters in relation to the suppression tasks performed in real wildland fires. Measurements of air temperature and heat flux were…
Author(s): Belén Carballo-Leyenda, José G. Villa, Jorge López-Satué, Jose A. Rodríguez-Marroyo
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As wildland fires amplify in size in many regions in the western USA, land and water managers are increasingly concerned about the deleterious effects on drinking water supplies. Consequences of severe wildfires include disturbed soils and areas of…
Author(s): Sarah A. Lewis, Peter R. Robichaud, Andrew T. Hudak, Eva K. Strand, Jan U. H. Eitel, Robert E. Brown
Year Published: