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Ecosystem

Displaying 5621 - 5640 of 5894 results

Vegetational recovery was compared on firelines constructed in three ground fuel cover types, using conventional hand tools and two types of fireline explosives. Measurement of ground coverage of shrub and herb species before and after disturbance…
Author(s): Timothy E. Paysen, Richard J. Barney
Year Published:

Provides information on use of prescribed fire to enhance productivity of bunchgrass ranges that have been invaded by Douglas-fir. Six vegetative "situations" representative of treatment opportunities most commonly encountered in Montana…
Author(s): George E. Gruell, James K. Brown, Charles L. Bushey
Year Published:

This publication is not available online.  It will have to be ordered from a library.
Author(s): Kendall L. Johnson
Year Published:

Describes the first 10 years of vegetation development following disturbance by a holocaustic forest fire in a western redcedar-western hemlock type in the Selkirk Range. Postfire development of vegetation is represented as life-form stages and…
Author(s): Peter F. Stickney
Year Published:

Two mathematical models are given to determine the best locations for initial attack resources in terms of travel time: a linear programming model and a statistical model. An example for the Clearwater National Forest in Idaho illustrates some of…
Author(s): Romain Mees
Year Published:

This is a classic textbook written by three well known authors (Kahneman recently won the Nobel Prize for economics) who have spent their careers working in the psychological fields of understanding how people make decisions under uncertainty. The…
Author(s):
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Discusses fire as an ecological factor for forest habitat types occurring in central Idaho. Identifies "Fire Groups" of habitat types based on fire's role in forest succession. Considerations for fire management are suggested.
Author(s): Marilyn F. Crane, William C. Fischer
Year Published:

Means, standard deviations, and quartiles of fuel loadings were determined for litter, for downed woody material of 0 to one-fourth inch, one-fourth to 1 inch, 0 to 1 inch, and 1 to 3 inches, for herbaceous vegetation, and for shrubs by cover types…
Author(s): James K. Brown, Collin D. Bevins
Year Published:

Describes a method for appraising fuels and fire behavior potential in aspen forests to guide the use of prescribed fire and the preparation of fire prescriptions. Includes an illustrated classification of aspen fuels; appraisals of fireline…
Author(s): James K. Brown, Dennis Simmerman
Year Published:

This issue of Fire Management Notes contains articles on fire shelters, fire behavior, the Butte Fire (Idaho 1985), crew mobilization, and using prescribed fire. Forest Fire Shelters Save Lives Art, Jukkala and Ted Putnam Methods for Predicting…
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An increment borer is a precision instrument specially designed to extract a thin cylinder of wood from a tree, shrub, log or pole. It is available in a variety of sizes ranging in length from 4 inches to 40 inches. Although the increment borer is…
Author(s): James K. Agee, Mark H. Huff
Year Published:

Field experiments were conducted to examine the effects of disturbance frequency on invertebrates and periphyton colonizing bricks in a third order Rocky Mountain (USA) stream. After an initial colonization period (30 days), sets of bricks were…
Author(s): Christopher T. Robinson, G. Wayne Minshall
Year Published:

More intensive management could be applied to many young stands in conifer forests of the Northern Rockies. Vast areas are stocked with stands that contain a mixture of conifer species. An important mixed species cover type in…
Author(s): Dennis M. Cole, Wyman C. Schmidt
Year Published:

Whitebark pine (Pinusa albicaulis)s found at timberline and in subalpine forests from central California and western Wyoming north to British Columbia and Alberta. This speciesh as been of little interest for commercial timber, but in recent years…
Author(s): Stephen F. Arno
Year Published:

This report analyzed the events leading up to the Lake Mountain Fire entrapment in the Salmon National Forest, Idaho, in 1985.  The authors looked at the fire and activities in terms of the 10 standard fire fighting orders and the 13 shout…
Author(s): Dave Dahl, Jim Sweeney, Roy Keck
Year Published:

This conceptual model of early seral shrub succession following clearcutting and broadcast burning synthesizes ideas from previous research and modeling approaches into a simple diagrammatic model of the critical successional…
Author(s): Penelope Morgan, Leon F. Neuenschwander
Year Published:

In salvage operations after wildfire, timber managers need to identify those trees most likely to die. Crown scorch volume and scorch height are commonly used to estimate damage to conifers after fire. Calculated crown scorch volume based on scorch…
Author(s): David L. Peterson
Year Published:

Much of the nearly 7 million acres (2.86 million ha) of aspen in the western United States is seral to conifers. Also, most aspen stands are old, in excess of 60 years. Proper treatment of these aspen forests will retain the aspen and can produce…
Author(s): Norbert V. DeByle
Year Published:

Water yield and sediment production almost always increase after wildfire has destroyed vegetative cover. The value of water generally is not as much appreciated in the water-rich northern Rocky Mountains as it is elsewhere. Increased water yield…
Author(s): Donald F. Potts, David L. Peterson, Hans R. Zuuring
Year Published:

Changes in recreation values after wildfire in the northern Rocky Mountains were determined by estimating the difference in the present net value of recreation activity with and without fire. To estimate the value of recreation activity at burned…
Author(s): Patrick J. Flowers, Henry J. Vaux, Philip D. Gardner, Thomas J. Mills
Year Published: