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Displaying 61 - 80 of 5651

Fire has always been an important component of many ecosystems, but anthropogenic global climate change is now altering fire regimes over much of Earth's land surface, spurring a more urgent need to understand the physical, biological, and chemical…
Author(s): Amy East, Amir AghaKouchak, Graziella Caprarelli, Gabriel Filippelli, Fabio Florindo, Charles H. Luce, Harihar Rajaram, Lynn M. Russell, Cristina Santin, Isaac Santos
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Changes in wildfire frequency and severity are altering conifer forests and pose threats to biodiversity and natural climate solutions. Where and when feedbacks between vegetation and fire could mediate forest transformation are unresolved. Here,…
Author(s): Tyler J. Hoecker, Sean A. Parks, Meade Krosby, Solomon Z. Dobrowski
Year Published:

Terrestrial LiDAR scans (TLS) offer a rich data source for high-fidelity vegetation characterization, addressing the limitations of traditional fuel sampling methods by capturing spatially explicit distributions that have a significant impact on…
Author(s): Anthony Marcozzi, Jesse V. Johnson, Russell A. Parsons, Sarah Flanary, Carl A. Seielstad, Jacob Z. Downs
Year Published:

In the United States (US), forest ecosystems are the largest terrestrial carbon sink, offsetting the equivalent of >12 % of economy-wide greenhouse gas (GHG) emissions annually. In the Western US, wildfires have shaped much of the landscape by…
Author(s): Panmei Jiang, Matthew B. Russell, Lee E. Frelich, Chad Babcock, James E. Smith
Year Published:

Particulate matter (PM) is a major primary pollutant emitted during wildland fires that has the potential to pose significant health risks to individuals/communities who live and work in areas impacted by smoke events. Limiting exposure is the…
Author(s): Russell W. Long, Shawn P. Urbanski, Emily Lincoln, Maribel Colón, Surender Kaushik, Jonathan Krug, Robert Vanderpool, Matthew S. Landis
Year Published:

Background: Current guidance for implementation of United States federal wildland fire policy charges agencies with restoring and maintaining fire-adapted ecosystems while limiting the extent of wildfires that threaten life and property, weighed…
Author(s): Bradley Pietruszka, Jesse Young, Karen C. Short, Lise A. St. Denis, Matthew P. Thompson, David E. Calkin
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Fuel is the part of the fire behavior triangle that we can directly affect. So, we know that we need to get more proactive with fuels treatments and prescribed fire if we want to get a better handle on the fire situation. As we shift towards more…
Author(s): Russell A. Parsons, Lucas Wells, Anthony Marcozzi, Rodman Linn, J. Kevin Hiers, F. Pimont, Karen L. Riley, Ilkay Altintas, Sarah Flanary
Year Published:

Runoff-generated debris flows are a potentially destructive and deadly response to wildfire until sufficient vegetation and soil-hydraulic recovery have reduced susceptibility to the hazard. Elevated debris-flow susceptibility may persist for…
Author(s): Andrew Graber, Matthew A. Thomas, Jason W. Kean
Year Published:

Climate warming, land use change, and altered fire regimes are driving ecological transformations that can have critical effects on Earth's biota. Fire refugia - locations that are burned less frequently or severely than their surroundings - may act…
Author(s): Kyle Rodman, Kimberly T. Davis, Sean A. Parks, Teresa B. Chapman, Jonathan D. Coop, Jose M. Iniguez, John Paul Roccaforte, Andrew Sanchez Meador, Judith D. Springer, Camille Stevens-Rumann, Michael T. Stoddard, Amy E. M. Waltz, Tzeidle N. Wasserman
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Background: Planting tree seedlings may help promote forest recovery after extensive high-severity wildfire. We evaluated the influence of growing environment characteristics on the performance of seedlings planted in the 2016 Cold Springs Fire,…
Author(s): Laura A. Marshall, Paula J. Fornwalt, Camille Stevens-Rumann, Kyle Rodman, Charles C. Rhoades, Kevin Zimlinghaus, Teresa B. Chapman, Catherine A. Schloegel
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For the past 20 to 30 years, a wildfire crisis has been building in the West as wildfires have grown in size, duration, and destructivity despite highly effective suppression responses by the USDA Forest Service and others in the wildland fire…
Author(s): Hutch Brown
Year Published:

Background: Plant flammability is an important factor in fire behaviour and post-fire ecological responses. There is consensus about the broad attributes (or axes) of flammability but little consistency in their measurement. Aims: We sought to…
Author(s): Jane G. Cawson, Jamie E. Burton, Bianca J. Pickering, Vana Demetriou, Alexander I. Filkov
Year Published:

Background: Contemporary and projected shifts in global fire regimes highlight the importance of understanding how fire affects ecosystem function and biodiversity across taxa and geographies. Pyrodiversity, or heterogeneity in fire history, is…
Author(s): Zachary L. Steel, Jesse E. D. Miller, Lauren C. Ponisio, Morgan W. Tingley, Kate Wilkin, Rachel V. Blakey, Kira M. Hoffman, Gavin M. Jones
Year Published:

Methods that integrate pre-, active-, and post-fire measurements to quantify fire effects across multiple spatial scales are needed to improve our understanding of ecological effects following fire and for informing natural resource management…
Author(s): Aaron M. Sparks, Alistair M. S. Smith, Andrew T. Hudak, Mark V. Corrao, Robert L. Kremens, Robert F. Keefe
Year Published:

Increasing wildfire activity in forests worldwide has driven urgency in understanding current and future fire regimes. Spatial patterns of area burned at high severity strongly shape forest resilience and constitute a key dimension of fire regimes,…
Author(s): Michele S. Buonanduci, Daniel C. Donato, Joshua S. Halofsky, Maureen C. Kennedy, Brian J. Harvey
Year Published:

Wildfires and fire seasons are commonly rated largely on the simple metric of area burned (more hectares: bad). A seemingly paradoxical narrative frames large fire seasons as a symptom of a forest health problem (too much fire), while simultaneously…
Author(s): Daniel C. Donato, Joshua S. Halofsky, Derek J. Churchill, Ryan D. Haugo, C. Alina Cansler, Annie Smith, Brian J. Harvey
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Temperate conifer forests stressed by climate change could be lost through tree regeneration decline in the interior of high-severity fires, resulting in type conversion to non-forest vegetation from seed-dispersal limitation, competition, drought…
Author(s): William L. Baker
Year Published:

Background: Burn severity significantly increases the likelihood and volume of post-wildfire debris flows. Pre-fire severity predictions can expedite mitigation efforts because precipitation contributing to these hazards often occurs shortly after…
Author(s): Adam G. Wells, Todd J. Hawbaker, J. Kevin Hiers, Jason W. Kean, Rachel A. Loehman, Paul F. Steblein
Year Published:

In December 2022, twenty-one experts from land management agencies, Tribes, and organizations from across the country convened at the Wilderness and Fire Workshop in Gunnison, Colorado to consider the effects of over a century of fire exclusion on…
Author(s): Center for Public Lands Western Colorado University, USFS Aldo Leopold Wilderness Research Institute,
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Separation Distances are used throughout the world to protect people and assets from the potential hazardous effects from propellants, explosives, and pyrotechnics. The current separation distances for Hazard Division (HD) 1.3 substances and…
Author(s): Clint Guymon, Ming Liu, Josephine Covino
Year Published: