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Ecosystem

Displaying 2341 - 2360 of 6072 results

There is a growing recognition that the social diversity of communities at risk from wildland fire may necessitate divergent combinations of policies, programs and incentives that allow diverse populations to promote fire adapted communities (FACs…
Author(s): Travis B. Paveglio, Catrin Edgeley, Matthew S. Carroll, Mark Billings, Amanda M. Stasiewicz
Year Published:

After wildfire, hillslope and channel erosion produce large amounts of sediment and can contribute significantly to long‐term erosion rates. However, pre‐erosion high‐resolution topographic data (e.g. lidar) is often not available and determining…
Author(s): Nicholas G. Ellett, Jennifer L. Pierce, Nancy F. Glenn
Year Published:

Predictive models of tree mortality and survival are vital for management planning and understanding fire effects in forests and woodlands, yet the underlying mechanisms of firecaused tree mortality remain poorly understood. This shortcoming limits…
Author(s): Sharon M. Hood, J. Morgan Varner, C. Alina Cansler
Year Published:

The Inventory & Monitoring Division of the U.S. National Park Service conducts long-term monitoring to provide park managers information on the status and trends in biological and environmental attributes including white pines. White pines are…
Author(s): Jonathan C. B. Nesmith, Micah Wright, Erik S. Jules, Shawn T. McKinney
Year Published:

Currently, as fire risk is considered a high-frequency and low-severity risk, actuarial and underwriting pricing and risk management methods have stuck to methods based purely on historical loss data. In the global context of both increasing fire…
Author(s): Bruno Guillaume, Bernard Porterie, Antonio Carlos Batista, Phil Cottle, Armand Albergel
Year Published:

Ponderosa pine (Pinus ponderosa Lawson & C. Lawson) is a prominent tree species in forests of the western United States. Wildfire activity in ponderosa pine dominated or co-dominated forests has increased dramatically in recent decades, with…
Author(s): Julie E. Korb, Paula J. Fornwalt, Camille Stevens-Rumann
Year Published:

The wildfires that burned in the Northern Rockies region of the USA during the 2017 fire season provided an opportunity to evaluate the suitability of using broadscale and temporally limited infrared data on hot spot locations to determine the…
Author(s): Wesley G. Page, Natalie S. Wagenbrenner, Bret W. Butler, David L. Blunck
Year Published:

Most of the previous investigations on the relationship between PM2.5 chemical characteristics and wildfire focused on the predictions of particle components concentrations or future pollution scenarios. Little research has focused on trends…
Author(s): Weeberb J. Requia, Brent A. Coull, Petros Koutrakis
Year Published:

Predicting wildfire disasters presents a major challenge to the field of risk science, especially when fires propagate long distances through diverse fuel types and complex terrain. A good example is in the western US where large tracts of public…
Author(s): Alan A. Ager, Palaiologos Palaiologou, Cody Evers, Michelle A. Day, Chris Ringo, Karen C. Short
Year Published:

The field of aerobiology is expanding due to a recognition of the diversity of roles microbes play in both terrestrial and atmospheric ecology. Smoke from global biomass burning has had significant and widespread ecological and human health…
Author(s): Leda N. Kobziar, Melissa R. A. Pingree, Heather Larson, Tyler J. Dreaden, Shelby Green, Jason A. Smith
Year Published:

The NWCG Smoke Management Guide for Prescribed Fire contains information on prescribed fire smoke management techniques, air quality regulations, smoke monitoring, modeling, communication, public perception of prescribed fire and smoke, climate…
Author(s): Janice L. Peterson, Peter Lahm, Mark Fitch, Michael H. George, Dennis V. Haddow, Mark A. Melvin, Joshua C. Hyde, Ellen Eberhardt
Year Published:

Soils are an important natural capital and can be negatively affected by high severity fires. The capacity of soil to recover from the degradation caused by fire disturbance depends on fire history, ash properties, topography, post-fire weather,…
Author(s): Paulo Pereira, Marcos Francos, Eric C. Brevik, Xavier Ubeda, Igor Bogunovic
Year Published:

Abundant stocks of woody biomass that are associated with active forest management can be used as fuel for bioenergy in many applications. Though factors driving large-scale biomass use in industrial settings have been studied extensively, small-…
Author(s): Jesse Young, Nathaniel Anderson, Helen T. Naughton, Katrina Mullan
Year Published:

Large wildfires with uncharacteristically high severity are occurring more frequently in western U.S. forests. The increasing size and severity of wildfires has been attributed to both an increase in weather conducive to fire spread and changes to…
Author(s): Brandon M. Collins, Jamie M. Lydersen, Van R. Kane, Nicholas A. Povak, Matthew L. Brooks, Douglas F. Smith
Year Published:

Mastication is the process of chipping or shredding components of the tree canopy or above-ground vegetation to reduce the canopy, alter fire spread rates, and reduce crown fire potential. Mastication as a fuel treatment, either alone or in…
Author(s): Faith A. Heinsch, Pamela G. Sikkink, Helen Y. Smith, Molly L. Retzlaff
Year Published:

Structurally diverse forests provide resilience to an array of disturbances and are a mainstay of multiple-resource management. Silviculture based on natural disturbance can increase structural heterogeneity while providing other ecological and…
Author(s): Justin S. Crotteau, Christopher R. Keyes, Sharon M. Hood, Andrew J. Larson, Elaine Kennedy Sutherland, David K. Wright, Joel M. Egan
Year Published:

People have inhabited the Northern Rocky Mountains of the United States since the close of the last Pleistocene glacial period, some 14,000 years B.P. (Fagan 1990; Meltzer 2009). Evidence of this ancient and more recent human occupation is found…
Author(s): Carl M. Davis
Year Published:

Wildland fires are generally classified into three categories: ground fires, surface fires, and crown fires (Fig. 1). Soils are described worldwide by the various layers that have formed or been deposited on top of bedrock or other parent material.…
Author(s): David R. Weise, J. Cobian-Iniguez, M. Princevac
Year Published:

This study proposes an explanation for textual performance grounded in communicative relationality. Specifically, genre is theorized as a form of textual agency whereby generic texts and organizational actors form agential-performative relationships…
Author(s): Jody L. Jahn
Year Published:

A warming climate, fire exclusion, and land cover changes are altering the conditions that produced historical fire regimes and facilitating increased recent wildfire activity in the northwestern United States. Understanding the impacts of changing…
Author(s): Arjan J. H. Meddens, Crystal A. Kolden, James A. Lutz, John T. Abatzoglou
Year Published: