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Ecosystem

Displaying 5561 - 5580 of 5949 results

In a presentation to the USDA Forest Service's national Fire and Aviation Staff, Gleason provides a clear overview of his proposed Lookouts, Communication, Escape Routes, Safety Zones (LCES) method of training firefighters for greater safety. After…
Author(s): Paul Gleason
Year Published:

National Park Service policies concerning fire have changed over the years from no policy at all in the early years, through years of absolute fire suppression, to a period of experimentation and refinement with a full spectrum of integrated fire…
Author(s): Jan W. van Wagtendonk
Year Published:

Various studies report changes in phosphorus and nitrogen concentrations in surface waters after wildfires; however, we have found no reports which include nutrient data collected during actual wildfire activity. We had an opportunity to collect…
Author(s): Craig N. Spencer, F. Richard Hauer
Year Published:

This FEIS species review synthesizes information on the relationship of Abies lasiocarpa (subalpine fir) to fire--how fire affects the species and its habitat, and fire management considerations. Information is also provided on the species'…
Author(s): Ronald Uchytil
Year Published:

Fine fuel moisture content, relative humidity, air temperature, and fire behavior were observed hourly for 48 hours on the North Fork Fire in Yellowstone National Park from August 25 to August 27, 1988. Fine fuel reached minimum moisture content of…
Author(s): Roberta A. Hartford, Richard C. Rothermel
Year Published:

This FEIS species review synthesizes information on the relationship of Picea glauca (white spruce) to fire--how fire affects the species and its habitat, and fire management considerations. Information is also provided on the species' taxonomy…
Author(s): Ronald Uchytil
Year Published:

A landslide is the movement of a mass of rock, earth or debris down a slope.
Author(s): David Milne Cruden
Year Published:

Experimental burns were conducted on 36 plots in mixed conifer logging slash in northern Idaho to investigate consumption of duff and woody fuel. Fires were conducted in spring and fall, in YUM (yarded unmerchantable material) and non-YUM dearcuts…
Author(s): James K. Brown, Elizabeth D. Reinhardt, William C. Fischer
Year Published:

This FEIS species review synthesizes information on the relationship of Hesperostipa spartea (porcupine grass) to fire--how fire affects the species and its habitat, and fire management considerations. Information is also provided on the species…
Author(s): Crystal J. Walkup
Year Published:

No single combination of five cutting-site preparation treatments resulted in superior natural regeneration in spruce-fir stands in Wyoming, Utah, and Idaho. Best results were generally obtained by partial cutting, with minimal disturbance of litter…
Author(s): Ward W. McCaughey, Carl E. Fiedler, Wyman C. Schmidt
Year Published:

This FEIS species review synthesizes information on the relationship of Salix planifolia (planeleaf willow) to fire--how fire affects the species and its habitat, and fire management considerations. Information is also provided on the species'…
Author(s): Ronald Uchytil
Year Published:

This FEIS species review synthesizes information on the relationship of Canis lupus (gray wolf) to fire--how fire affects the species and its habitat, and fire management considerations. Information is also provided on the species' taxonomy,…
Author(s): S. A. Snyder
Year Published:

Wildland fire is a significant component of nearly all North American ecosystems. High intensity, stand-replacement fires are normal in certain ecosystems, especially in the northern Rocky Mountains. Wilderness fire managers are obligated to let…
Author(s): Jack D. Cohen
Year Published:

Presettlement fire played an important role in nutrient conversion, plant succession, diversity, and stand dynamics in coniferous forests of western North America. Prescribed fire can maintain site quality and contribute to control of insect and…
Author(s): Roger D. Hungerford, Michael G. Harrington, William H. Frandsen, Kevin C. Ryan, Gerald J. Niehoff
Year Published:

Litter arthropod data was collected every 10 days from nine intensively burned forest stands, five lightly burned stands, and nine unburned forest stands. For burned forest stands (n=540 samples, there were decreases in insect density (87 percent),…
Author(s): Tim A. Christiansen, Robert J. Lavigne, Jeffrey A. Lockwood
Year Published:

This FEIS species review synthesizes information on the relationship of Crataegus douglasii (black hawthorn) to fire--how fire affects the species and its habitat, and fire management considerations. Information is also provided on the species…
Author(s): James R. Habeck
Year Published:

This FEIS species review synthesizes information on the relationship of Arctostaphylos uva-ursi (kinnikinnick) to fire--how fire affects the species and its habitat, and fire management considerations. Information is also provided on the species…
Author(s): Marilyn F. Crane
Year Published:

This FEIS species review synthesizes information on the relationship of Shepherdia canadensis (russet buffaloberry) to fire--how fire affects the species and its habitat, and fire management considerations. Information is also provided on the…
Author(s): Crystal J. Walkup
Year Published:

Dendroecological methods were used to study the effects of wildfire on radial growth of Pseudotsuga mniiesii (Douglas-fir) and Pinus contorta (lodgepole pine) in the northern Rocky Mountains. Mean basal area increment during a 4-year postfire period…
Author(s): David L. Peterson, Michael J. Arbaugh, George H. Pollock, Lindsay J. Robinson
Year Published:

This work introduces remote sensing of biomass burning emissions using high-resolution Fourier transform infrared (FTIR) absorption spectroscopy over open paths in smoke plumes from biomass fires. There are several advantages to this type of smoke…
Author(s): David W. T. Griffith, William G. Mankin, Michael T. Coffey, Darold E. Ward, Allen R. Riebau
Year Published: