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Ecosystem

Displaying 1781 - 1800 of 6066 results

In NW of the Iberian Peninsula, the incidence of anthropogenic fires is very high and, due to the climatologic and topographical conditions, burnt soils are prone to high erosion risks. In recent years several environmental management techniques (…
Author(s): María Fernandez-Fernandez, Serafín J. González-Prieto
Year Published:

The long-term effectiveness of dry-forest fuels treatments (restoration thinning and prescribed burning) depends, in part, on the pace at which trees regenerate and recruit into the overstory. Knowledge of the factors that shape post-treatment…
Author(s): Allison K. Rossman, Jonathan D. Bakker, David W. Peterson, Charles B. Halpern
Year Published:

The 2001 Forest Service Roadless Rule prohibits roadbuilding in forests across an area equivalent to the combined states of New York and Maine (236 000 km2). There have been recent assertions that roads are needed to prevent fire and to keep forests…
Author(s): Sean P. Healey
Year Published:

One of the primary conservation threats surrounding sagebrush (Artemisia spp.) ecosystems in the Intermountain West of the United States is the expansion and infilling of pinyon pine (Pinus edulis, P. monophylla) and juniper (Juniperus spp.)…
Author(s): Jason R. Reinhardt, Steven K. Filippelli, Michael J. Falkowski, Brady W. Allred, Jeremy D. Maestas, John Carlson, David E. Naugle
Year Published:

Large-scale, high-severity wildfires are a major challenge to the future social-ecological sustainability of fire-adapted forest ecosystems in the American West. Managing forests to mitigate this risk is a collective action problem requiring…
Author(s): Susan Charnley, Erin C. Kelly, A. Paige Fischer
Year Published:

The practice of “cyanobacterization” (soil inoculation with cyanobacteria) has been shown to be effective in increasing soil fertility and physical stability in natural and agricultural soils, but little is known about its utility for the recovery…
Author(s): Sonia Chamizo, Alessandra Adessi, Giacomo Certini, Roberto De Philippis
Year Published:

Amongst the numerous models introduced with SOC, the Forest Fire Model (FFM) is particularly attractive for its close relationship to stochastic spreading, which is central to the study of systems as diverse as epidemics, rumors, or indeed, fires.…
Author(s): Lorenzo Palmieri, Henrik Jeldtoft Jensen
Year Published:

Stand-replacing fires burned at 100 to 300-year intervals for millennia in subalpine conifer forests of western North America, but forests are burning more frequently as climate warms. Postfire tree regeneration is reduced when young forests reburn…
Author(s): Tyler J. Hoecker, Winslow D. Hansen, Monica G. Turner
Year Published:

The extent of severely burned landscapes are increasing in the Western US due to climate change and altered forest states. Directly after a wildfire, managers implement techniques to stabilize soils or harvest merchantable timber. Collaborating with…
Author(s): Henry S. Grover, Matthew A. Bowker
Year Published:

Context: Distance to seed source is often used to estimate seed dispersal—a process needed for post-fire tree recovery. However, distance, especially in mountainous terrain, does not capture pattern or scale-dependent effects controlling seed supply…
Author(s): Jamie L. Peeler, Erica A. H. Smithwick
Year Published:

Background: Exposure to fine particulate matter ( PM2.5 ) during wildfire seasons has been associated with adverse health outcomes. Previous studies have focused on daily exposure, but PM2.5 levels in smoke events can vary considerably within 1 d.…
Author(s): Jiayun Yao, Michael Brauer, Julie Wei, Kimberlyn M. McGrail, Fay H. Johnston, Sarah B. Henderson
Year Published:

In the western United States, restoration of forests with historically frequent, low‐severity fire regimes often includes fuel reduction that reestablish open, early‐seral conditions while reducing fuel continuity and loading. Between 2001 and 2016…
Author(s): Justin S. Crotteau, Christopher R. Keyes, Sharon M. Hood, Andrew J. Larson
Year Published:

Recent data show that fire concentration is becoming rather predominant in Southern European areas. Specifically, 2017–2018 were some of the worst years on record for fires in Europe. We conduct a survey among households in order to understand…
Author(s): Maria Alló, Maria L. Loureiro
Year Published:

Large wildfires can have profound and lasting impacts not only from direct consumption of vegetation but also longer‐term effects such as persistent soil erosion. The 2002 Hayman Fire burned in one of the watersheds supplying water to the Denver…
Author(s): Peter R. Robichaud, Sarah A. Lewis, Joseph W. Wagenbrenner, Robert E. Brown, Frederick B. Pierson
Year Published:

Nearly a century of fire suppression in most forested land of the United States has limited researchers’ ability to construct and rigorously test conceptual models of forest structural development in mixed-conifer ecosystems. As a result, land…
Author(s): Julia Berkey, R. Travis Belote, Colin T. Maher, Andrew J. Larson
Year Published:

Harnessing the fire data revolution, i.e., the abundance of information from satellites, government records, social media, and human health sources, now requires complex and challenging data integration approaches. Defining fire events is key to…
Author(s): Jennifer Balch, Lise A. St. Denis, Adam L. Mahood, Nathan Mietkiewicz, Travis M. Williams, Joe McGlinchy, Maxwell C. Cook
Year Published:

Increasingly, scholars have sought to understand the role of collective action across property boundaries to address natural resource management challenges. Although the growing focus on collective action for natural resource management has led to…
Author(s): Rebecca M. Niemiec, Sarah M. McCaffrey, Megan S. Jones
Year Published:

Seeding an area after a fire has long been used to control erosion and suppress problem invasive grasses like cheatgrass. But for managers, choosing the right seed mix to use can be tricky. Seed mixes containing only native species are ideal for…
Author(s):
Year Published:

After generations of fire-suppression policy, Indigenous fire management (IFM) is being reactivated as one way to mitigate wildfire in fire-prone ecosystems. Research has documented that IFM also mitigates carbon emissions, improves livelihoods and…
Author(s): William Nikolakis, Emma Roberts, Ngaio Hotte, Russell Myers Ross
Year Published:

To better understand the implications of the word resilience for western forest and fire management, this study explores its emerging use in a large body of policy and management documents produced between 1980 and 2016. We performed a computer-…
Author(s): Owen A. Selles, Adena R. Rissman
Year Published: