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Ecosystem

Displaying 1601 - 1620 of 6068 results

Increasing temperatures and irregular precipitation associated with climate change, along with increasing frequency and severity of wildfires, contribute to increased downstream transport of sediment and total organic carbon (TOC), with potential…
Author(s): Danielle Loiselle, Xinzhong Du, Daniel S. Alessi, Kevin D. Bladon, Monireh Faramarzi
Year Published:

Complex, reciprocal interactions among climate, disturbance, and vegetation dramatically alter spatial landscape patterns and influence ecosystem dynamics. As climate and disturbance regimes shift, historical analogs and past empirical studies may…
Author(s): Rachel A. Loehman, Robert E. Keane, Lisa M. Holsinger
Year Published:

Climate-driven increases in disturbance frequency and extent augment the potential for compounded disturbances. Drawing on well-studied forests that experienced successive disturbances, we asked: (1) how does post-fire cover of litter, herbaceous…
Author(s): Nathan S. Gill, Daniel Jarvis, John Rogan, Dominik Kulakowski
Year Published:

“Coproduction” as a transformative model for fire science application is receiving increasing attention as wildland fire managers face increasingly complex contexts for prescribed fire applications and wildfire suppression (Hiers 2017). Among…
Author(s): J. Morgan Varner, J. Kevin Hiers
Year Published:

Understanding the soil heat and moisture transport is significant for assessing the living condition of vegetation and microorganisms in soils. Numerous studies have been conducted to understand the coupled soil heat and moisture transport under '…
Author(s): Ting Bao, Si Liu, Yinghong Qin, Zhen Liu
Year Published:

The location of shelters in different areas threatened by wildfires is one of the possible ways to reduce fatalities in a context of an increasing number of catastrophic and severe wildfires. These shelters will enable the population in the area to…
Author(s): Marc Demange, Virginie Gabrel, Marcel A. Haddad, Cécile Murat
Year Published:

Fire is a global disturbance that is predicted to increase in frequency and severity in many parts of the world due to climate change. Biological soil crust (biocrust) communities are often overlooked in fire studies despite having a substantial…
Author(s): Brianne Palmer, Rebecca Hernandez, David Lipson
Year Published:

Fine particulate matter emissions (PM2.5) from landscape biomass fires, both prescribed and wild, pose a significant public health risk, with smoke exposure seasonally impacting human populations through both highly concentrated local plumes, and…
Author(s): Grant J. Williamson, Christopher Lucani
Year Published:

Background: Wildfires produce pyrogenic carbon (PyC) through the incomplete combustion of organic matter, and its chemical characterization is critical to understanding carbon (C) budgets and ecosystem functions in forests. Across western North…
Author(s): Anna C. Talucci, Lauren M. Matosziuk, Jeff A. Hatten, Meg A. Krawchuk
Year Published:

Key message: We have explored the impacts of forest thinning on wildland fire behavior using a process based model. Simulating different degrees of thinning, we found out that forest thinning should be conducted cautiously as there could be a wide…
Author(s): Tirtha Banerjee
Year Published:

Context: Post-fire tree mortality is a spatially structured process driven by interacting factors across multiple scales. However, empirical models of fire-caused tree mortality are generally not spatially explicit, do not differentiate among scales…
Author(s): Sean M.A. Jeronimo, James A. Lutz, Van R. Kane, Andrew J. Larson, Jerry F. Franklin
Year Published:

Because wildfires don’t stop at ownership boundaries, managers from governmental and nongovernmental organizations in Northern Colorado are taking steps to pro-actively “co-manage” wildfire risk through the Northern Colorado Fireshed Collaborative (…
Author(s): Tony S. Cheng, Michael D. Caggiano
Year Published:

Extreme wildfire events are becoming more common and while the immediate risks of particulate exposures to susceptible populations (i.e., elderly, asthmatics) are appreciated, the long-term health effects are not known. In 2017, the Seeley Lake (SL…
Author(s): Ava Orr, Cristi A. L. Migliaccio, Mary Buford, Sarah Ballou, Christopher T. Migliaccio
Year Published:

Ecological droughts are deficits in soil–water availability that induce threshold-like ecosystem responses, such as causing altered or degraded plant-community conditions, which can be exceedingly difficult to reverse. However, 'ecological drought'…
Author(s): Rory O'Connor, Matthew J. Germino, David M Barnard, Caitlin M. Andrews, John Bradford, David S. Pilliod, Robert S. Arkle, Robert K. Shriver
Year Published:

In 2009, new guidance for wildland fire management in the United States expanded the range of strategic options for managers working to reduce the threat of high-severity wildland fire, improve forest health and respond to a changing climate.…
Author(s): Jesse Young, Alexander M. Evans, Jose M. Iniguez, Andrea E. Thode, Marc D. Meyer, Shaula J. Hedwall, Sarah M. McCaffrey, Patrick Shin, Ching-Hsun Huang
Year Published:

Background: Wildfires in the Pacific Northwest (Washington, Oregon, Idaho, and western Montana, USA) have been immense in recent years, capturing the attention of resource managers, fire scientists, and the general public. This paper synthesizes…
Author(s): Jessica E. Halofsky, David L. Peterson, Brian J. Harvey
Year Published:

In frequent‐fire forests, wildland fire acts as a self‐ regulating process creating forest structures that consist of a fine‐grained mosaic of isolated trees, tree groups of various sizes, and non‐treed openings. Though the self‐regulation of forest…
Author(s): Scott M. Ritter, Chad M. Hoffman, Michael A. Battaglia, Camille Stevens-Rumann, William E. Mell
Year Published:

Warm summer temperatures and longer fire seasons are promoting larger, and in some cases, more fires that are severe in low- and mid-elevation, dry mixed-conifer forests of the Northern Rocky Mountains (NRM). Long-term historical fire conditions and…
Author(s): Dave McWethy, Mio Alt, Elena Argiriadis, Dario Battistel, Richard G. Everett, Gregory T. Pederson
Year Published:

Increasingly frequent large wildfires in the western US raise questions about the effects of climate and site-level factors on forest ecosystem resilience. This study presents findings from seedling and sapling surveys conducted across 179 sites 15–…
Author(s): Angela Boag, Mark J. Ducey, Michael W. Palace, Joel Hartter
Year Published:

Fuels reduction treatments to mitigate fire behavior are common in ponderosa pine ecosystems of the western United States. While initial impacts of fuel treatments have been reported, less is known about treatment longevity as live and dead fuels…
Author(s): Sharon M. Hood, Christopher R. Keyes, Katelynn J. Bowen, Duncan C. Lutes, Carl A. Seielstad
Year Published: