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Ecosystem

Displaying 1301 - 1320 of 6016 results

Active wildfire seasons in the western U.S. warrant the evaluation of post‐fire forest management strategies. Ground‐based salvage logging is often used to recover economic loss of burned timber. In unburned forests, ground‐based logging often…
Author(s): Peter R. Robichaud, Edwin D. Bone, Sarah A. Lewis, Erin S. Brooks, Robert E. Brown
Year Published:

Increased fire frequency in semi-arid ecosystems can alter biochemical soil properties and soil processes that underpin ecosystem structure and functioning, thus threatening native plant communities and the species that rely on them. However, there…
Author(s): Leslie Nichols, Douglas J. Shinneman, Susan K. McIlroy, Marie-Anne de Graaff
Year Published:

Active wildfire seasons in the western U.S. warrant the evaluation of post‐fire forest management strategies. Ground‐based salvage logging is often used to recover economic loss of burned timber. In unburned forests, ground‐based logging often…
Author(s): Peter R. Robichaud, Edwin D. Bone, Sarah A. Lewis, Erin S. Brooks, Robert E. Brown
Year Published:

The western United States has suffered increasingly disastrous wildfires in recent years. Massive wildfires have attracted considerable attention from the media and policy makers, and have renewed calls to better understand and mitigate wildfire…
Author(s): Alex W. Kirkpatrick
Year Published:

Background:The need for basic information on spatial distribution and abundance of plant species for research and management in semiarid ecosystems is frequently unmet. This need is particularly acute in the large areas impacted by megafires in…
Author(s): Cara Applestein, Matthew J. Germino
Year Published:

Over the past few years, numerous large-scale disasters have occurred due to wildfires at the wildland-urban interface (WUI). In these fires, spread via the transport of firebrands (burning embers) plays a significant role. Several models have been…
Author(s): Mohammadhadi Hajilou, Steven Hu, Thomas Roche, Priya Garg, Michael J. Gollner
Year Published:

Wildfire is a landscape‐scale disturbance that changes the rate and magnitude of many earth surface processes. The impacts of fire on earth surface processes can vary substantially from place to place depending on a variety of site‐specific…
Author(s): Francis K. Rengers, Luke A. McGuire
Year Published:

Effective strategies to reduce indoor air pollutant concentrations during wildfire smoke events are critically needed. Worldwide, communities in areas prone to wildfires may suffer from annual smoke exposure events lasting from days to weeks. In…
Author(s): Gilliane Davison, Karoline K. Barkjohn, Gayle Hagler, Amara L. Holder, Sarah Coefield, Curtis W. Noonan, Beth Hassett-Sipple
Year Published:

As land managers strive to implement the National Cohesive Wildland Fire Management Strategy, guidance is critically needed on where and how landscape fuel reduction treatments can mitigate future fire impacts and assist in active fire management.…
Author(s): Susan J. Prichard, Robert W. Gray, Vivian Griffey, Paul F. Hessburg, Becky K. Kerns, Rebecca Lemons, Roger D. Ottmar, Nicholas A. Povak, R. Brion Salter
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This FEIS species review synthesizes information on the relationship of Rubus armeniacus, R. bifrons(Himalayan blackberry) to fire--how fire affects the species and its habitat, invasiveness of the species, and fire management considerations.…
Author(s): Janet L. Fryer
Year Published:

Changing climate and disturbance regimes are increasingly challenging the resilience of forest ecosystems around the globe. A powerful indicator for the loss of resilience is regeneration failure, that is, the inability of the prevailing tree…
Author(s): Werner Rammer, Kristin H. Braziunas, Winslow D. Hansen, Zakary Ratajczak, Anthony L. Westerling, Monica G. Turner, Rupert Seidl
Year Published:

How fuel influences fire spread at different spatial scales has been broadly studied but it is still under research. Although prior research has generally explored fuel effects at the stand scale, there is increasing recognition that forest…
Author(s): Andrea Duane, Marcelo D. Miranda, Lluis Brotons
Year Published:

Wildfire is a natural disturbance and ecological process in forested ecosystems across the western United States. However, warmer temperatures, frequent droughts, and legacies of past land management are impacting western forests, leaving them at a…
Author(s): Tzeidle N. Wasserman
Year Published:

Many studies have defined the interrelationships between climate, forest disturbance, and runoff at small scales (<100 km2), but few have translated these relationships to large watersheds (>500 km2). In this study, we explore the relationship…
Author(s): Margot E. Vore, Stephen J. Déry, Yiping Hou, Xiaohua Wei
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Since the 1960s, canopy photography has been widely used in forestry. Hemispherical photography has been the most widely used technique, but a great drawback of this method is its perceived sensitivity to hemispherical image acquisition and…
Author(s): Francesco Chianucci
Year Published:

In this study, we use simulations from seven global vegetation models to provide the first multi‐model estimate of fire impacts on global tree cover and the carbon cycle under current climate and anthropogenic land use conditions, averaged for the…
Author(s): Gitta Lasslop, Stijn Hantson, Sandy P. Harrison, Dominique Bachelet, Chantelle Burton, Matthias Forkel, Matthew Forrest, Fang Li, Joe R. Melton, Chao Yue, Sally Archibald, Simon Scheiter, Almut Arneth, Thomas Hickler, Stephen Sitch
Year Published:

As the climate warms, drought will increasingly occur under elevated temperatures, placing forest ecosystems at growing risk of extensive dieback and mortality. In some cases, increases in tree density following early 20th-century fire suppression…
Author(s): Alan J. Tepley, Sharon M. Hood, Christopher R. Keyes, Anna Sala
Year Published:

This paper evaluates the fuel moisture content (FMC) threshold that leads to fire extinction for a few fuel types under marginal conditions. Influences of fuel load, fuel depth, Leaf Area Index (LAI) and packing ratio on this FMC threshold were also…
Author(s): Carmen Awad, D. Morvan, Jean Louis Rossi, Thierry Marcelli, François Joseph Chatelon, Frederic Morandini, Jacques Henri Balbi
Year Published:

Using a naturalistic quasi-experimental design and growth curve modeling techniques, a recently proposed climate change risk perception model was replicated and extended to investigate changes in climate change risk perception and climate policy…
Author(s): Karine Lacroix, Robert Gifford, Jonathan Rush
Year Published:

Studies of the chemical composition of atmospheric aerosols, rain water and snow in various regions of the globe quite often show the presence of pyridine and a number of its low mass derivatives. Nevertheless, the sources of those compounds in the…
Author(s): Dmitry S. Kosyakov, Nikolay V. Ul'yanovskii, Tomas B. Latkin, Sergey A. Pokryshkin, Valeria R. Berzhonskis, Olga V. Polyakova, Albert T. Lebedev
Year Published: