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Author : Irene A. Althaus
Publisher : Unknown
Page : 14 pages
File Size : 46,7 Mb
Release : 1982
Category : Forest fires
ISBN : MINN:31951D02964059V
Author : David C. Baumgartner
Publisher : Unknown
Page : 52 pages
File Size : 52,9 Mb
Release : 1982
Category : Wildfires
ISBN : MINN:31951D02996615Z
Bibliografie en een zeer globaal overzicht van de Noord-Amerikaanse literatuur over economische modellen voor het afbranden van natuurterreinen (uitgezonderd bossen) als beheersmaatregel
Author : Thomas John Mills
Publisher : Unknown
Page : 60 pages
File Size : 52,8 Mb
Release : 1988
Category : Forest fires
ISBN : MINN:31951D02889035F
Author : Anonim
Publisher : Unknown
Page : 734 pages
File Size : 45,6 Mb
Release : 1978
Category : Forests and forestry
ISBN : UOM:39015005846756
Author : Dennis L. Schweitzer
Publisher : Unknown
Page : 36 pages
File Size : 44,8 Mb
Release : 1982
Category : Forest fires
ISBN : MINN:31951D02964859Z
Two components of fire management programs were analyzed at these Forests: Francis Marion (South Carolina), Huron-Manistee (Michigan), San Bernardino (California), Tonto (Arizona), and Deschutes and Willamette (Oregon). Initial attack and aviation operations were evaluated by the criterion of minimizing the program cost plus the net value change of resource outputs and structures resulting from fire (C + NVC). Four alternative program or budget levels were investigated at each forest for each of 3 years of varying fire severity. The program levels ranged from +20 percent below the 1979 funding level to 40 percent above that level. The most economically efficient levels were -20 percent at four forests, +20 percent at one forest, and +40 percent at another forest. Results suggested that increased fire year severity may not mean that a higher program level is more efficient. Commercial timber and structural losses contributed most to net value change, which was a small percent of the C + NVC in most of the years evaluated.
Author : Anonim
Publisher : Unknown
Page : 308 pages
File Size : 41,9 Mb
Release : 1990
Category : Forest fires
ISBN : MINN:31951D03001103G
The proceedings is a collection of papers and posters presented at the Symposium on Effects of Fire Management of Southwestern Natural Resources held in Tucson, Arizona, November 15-17, 1988. Included are papers, poster papers and a comprehensive list of references on the effects of fire on: plant succession, cultural resources, hydrology, range and wildlife resources, soils, recreation, smoke management, and monitoring techniques pertinent to prescribed fire management in the southwestern United States.
Author : Anonim
Publisher : Unknown
Page : 308 pages
File Size : 43,6 Mb
Release : 1990
Category : Forests and forestry
ISBN : MINN:30000001204134
Author : Anonim
Publisher : Unknown
Page : 836 pages
File Size : 45,7 Mb
Release : 1985
Category : Forests and forestry
ISBN : UOM:39015010056987
Author : Wayne P. Van Meter
Publisher : Unknown
Page : 482 pages
File Size : 50,6 Mb
Release : 1985
Category : Electronic
ISBN : STANFORD:36105009851077
Author : Leonard F. DeBano,Daniel G. Neary,Peter F. Ffolliott
Publisher : John Wiley & Sons
Page : 356 pages
File Size : 47,5 Mb
Release : 1998-03-09
Category : Science
ISBN : 0471163562
A comprehensive exploration of the effects of fires--in forests and other environments--on soils, watersheds, vegetation, air and cultural resources.
Author : Anonim
Publisher : Unknown
Page : 32 pages
File Size : 41,9 Mb
Release : 1985
Category : Timber
ISBN : MINN:31951D02889023M
In the last decade, the fire management program of the Forest Service, U.S. Department of Agriculture, has come under closer scrutiny because of ever-rising program costs. The Forest Service has responded by conducting several studies analyzing the economic efficiency of its fire management program. Some components of the analytical models have been difficult to develop, particularly changes in the net value and output of timber caused by wildfire.
Author : Pacific Southwest Forest and Range Experiment Station (Berkeley, Calif.)
Publisher : Unknown
Page : 564 pages
File Size : 45,8 Mb
Release : 1978
Category : Forests and forestry
ISBN : WISC:89038509600
Author : Anonim
Publisher : Unknown
Page : 436 pages
File Size : 54,8 Mb
Release : 1981
Category : Forests and forestry
ISBN : UOM:39015017859615
Author : Philip M. McDonald
Publisher : Unknown
Page : 796 pages
File Size : 55,6 Mb
Release : 1980
Category : Clearcutting
ISBN : STANFORD:36105117927447
In a 1964-1967 study on the Challenge Experimental Forest, seedfall was evaluated in 2-, 5-, and 10-acre circular clearcuttings. During the 4 years, 10 seed crops, ranging from light to bumper, were produced by ponderosa pine. white fir, Douglas-fir, and incense cedar. Seedfall ranged from 76 to 40,691 sound seed per acre (188 to 100,547/ha) for a single species in a given year. From 89 to 100 percent of each species' seed fell within an area 1 1/2 times the height of the average dominant tree. Overall, seed distribution was highly variable.
Author : Stephen M. Barrager
Publisher : Unknown
Page : 40 pages
File Size : 41,6 Mb
Release : 1982
Category : Fire ecology
ISBN : MINN:31951D02889501C
