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Ecosystem

Displaying 4861 - 4880 of 6051 results

The controls of forest vegetation, wildfires, and harvest vegetation disturbances on the frequency and magnitude of sediment delivery from a small watershed (3.9 km2) in the Idaho batholith are investigated through numerical modeling. The model…
Author(s): Erkan Istanbulluoglu, David G. Tarboton, Robert T. Pack, Charles H. Luce
Year Published:

This fact sheet describes the sources of sediment in upland forest watersheds in the context of fuel management activities. It presents the dominant forest soil erosion processes, and the principles behind the new sediment delivery interface…
Author(s): William J. Elliot, Peter R. Robichaud
Year Published:

Estimates of crown fire hazard are presented for existing forest conditions in Montana by density class, structural class, forest type, and landownership. Three hazard reduction treatments were evaluated for their effectiveness in treating…
Author(s): Carl E. Fiedler, Charles E. Keegan, Christopher W. Woodall, Todd A. Morgan
Year Published:

Wildfire and prescribed fire have the potential to affect user demand and value for recreation, making such information important to the decision-making process for fire managers. However, such information is not always readily available. We…
Author(s): Hayley Hesseln, John B. Loomis, Armando Gonzalez-Caban
Year Published:

This FEIS species review synthesizes information on the relationship of Asarum caudatum (wild ginger) to fire--how fire affects the species and its habitat, effects of the species on fuels and fire regimes, and fire management considerations.…
Author(s): Corey L. Gucker
Year Published:

Hyperbolic temperature exposures (in which the rate of temperature rise increases with time) and an analytical solution to a rate-process model were used to characterise the impairment of respiration in samples containing both phloem (live bark) and…
Author(s): Matthew B. Dickinson, Joan Jolliff, Anthony S. Bova
Year Published:

Debris flows and hyperconcentrated flows immediately impact streams by changing channel morphology, grain size, sediment storage and transport, amount of incision, riparian vegetation, large woody debris dynamics, and extirpating fish, amphibian,…
Author(s): C. W. Welcker, John M. Buffington, Bruce E. Rieman, Charles H. Luce, J. A. McKean
Year Published:

Many managers and policy makers guided by the National Environmental Policy Act process want to understand the scientific principles on which they can base fuel treatments for reducing the size and severity of wildfires. These Forest Structure and…
Author(s): Kelly O'Brian
Year Published:

Occasionally, Fire Management Today publishes comments from readers on topics of concern, offering authors a chance to respond. Stephen A. Eckert contends that the 'Brewer fire mystery' is not so mysterious. He says that the conditions…
Author(s): Stephen A. Eckert, Martin E. Alexander
Year Published:

Climatic variability is a dominant factor affecting large wildfires in the western United States, an observation supported by palaeoecological data on charcoal in lake sediments and reconstructions from fire-scarred trees. Although current fire…
Author(s): Donald McKenzie, Ze'ev Gedalof, David L. Peterson, Philip W. Mote
Year Published:

This FEIS species review synthesizes information on the relationship of Convolvulus arvensis (field bindweed) to fire--how fire affects the species and its habitat, invasiveness of the species, effects of the species on fuels and fire regimes, and…
Author(s): Kristin L. Zouhar
Year Published:

Invasion of non-native plant species into natural and managed ecosystems is a widespread problem, with potentially devastating ecological and economic consequences. Increased occurrence and severity of wildland fires has been identified as a…
Author(s): Mara Johnson, Lisa J. Rew, Bruce D. Maxwell, Steve Sutherland
Year Published:

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Author(s): Carl E. Fiedler, Michael G. Harrington
Year Published:

With increased interest in reducing hazardous fuels in dry inland forests of the American West, agencies and the public will want to know the economic impacts of fuel reduction treatments. This fact sheet discusses the economic impact tool, a…
Author(s): Michael J. Niccolucci, Greg Alward
Year Published:

This study focused on the role of fire both as a perceived threat and a management tool of nonindustrial private forest and tribal forest landowners or managers in two counties in northeastern Washington State. Using qualitative social research…
Author(s): Matthew S. Carroll, Patricia J. Cohn, Keith A. Blatner
Year Published:

Exotic species were monitored following treatments designed to reduce wildfire hazard and initiate restoration of forest structure and process in ponderosa pine (Pinus ponderosa)/Douglas-fir (Pseudotsuga mensiezii) forests to compare response among…
Author(s): Erich K. Dodson
Year Published:

Wildfire can cause water repellency and consume plant canopy, surface plants and litter, and structure-enhancing organics within soil. Changes in soil moisture, structure, and infiltration can accelerate surface runoff, erosion, sediment transport,…
Author(s): George G. Ice, Daniel G. Neary, Paul W. Adams
Year Published:

Fire management, and forest and rangeland fuels management, over the past century have altered the wildland fire situation dramatically, thus also altering the institutional approach to how to deal with the changing landscape. Also, climate change,…
Author(s):
Year Published:

Weed infestations cause an economic loss of $13 billion per year even though $9.5 billion per year is spent on weed control measures. In addition to these economic costs, weeds are replacing native species, altering native plant and animal…
Author(s): Steve Sutherland
Year Published:

This is a government publication outlining the steps to wildfire preparedness in Red Lodge, MT. The key features include homeowners' associations, which lead in fuel reduction around properties; USFS recreation residences, which conduct fuel…
Author(s): Victoria Sturtevant, Linda E. Kruger
Year Published: