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Author : Rodney W. Sando
Publisher : Unknown
Page : 52 pages
File Size : 52,7 Mb
Release : 1972
Category : Forest fires
ISBN : MINN:31951D029777055
Author : Rodney W. Sando
Publisher : Unknown
Page : 16 pages
File Size : 48,9 Mb
Release : 1972
Category : Forest fires
ISBN : MINN:31951D03001531V
Author : Joe H. Scott
Publisher : Unknown
Page : 68 pages
File Size : 52,7 Mb
Release : 2001
Category : Fire risk assessment
ISBN : MINN:31951D03001930H
Fire managers are increasingly concerned about the threat of crown fires, yet only now are quantitative methods for assessing crown fire hazard being developed. Links among existing mathematical models of fire behavior are used to develop two indices of crown fire hazard-the Torching Index and Crowning Index. These indices can be used to ordinate different forest stands by their relative susceptibility to crown fire and to compare the effectiveness of crown fire mitigation treatments. The coupled model was used to simulate the wide range of fire behavior possible in a forest stand, from a low-intensity surface fire to a high-intensity active crown fire, for the purpose of comparing potential fire behavior. The hazard indices and behavior simulations incorporate the effects of surface fuel characteristics, dead and live fuel moistures (surface and crown), slope steepness, canopy base height, canopy bulk density, and wind reduction by the canopy. Example simulations are for western Montana Pinus ponderosa and Pinus contorta stands. Although some of the models presented here have had limited testing or restricted geographic applicability, the concepts will apply to models for other regions and new models with greater geographic applicability.
Author : Anonim
Publisher : Unknown
Page : 20 pages
File Size : 46,8 Mb
Release : 1981
Category : Forests and forestry
ISBN : OSU:32435024064990
Author : Anonim
Publisher : Unknown
Page : 568 pages
File Size : 54,5 Mb
Release : 1968
Category : Forests and forestry
ISBN : UOM:39015001294894
Author : Joe H. Scott
Publisher : Unknown
Page : 56 pages
File Size : 41,9 Mb
Release : 2005
Category : Forest canopies
ISBN : MINN:31951D030014123
Author : Robert M. Loomis,Peter J. Roussopoulos
Publisher : Unknown
Page : 12 pages
File Size : 45,6 Mb
Release : 1978
Category : Aspen
ISBN : MINN:31951D03001602Y
Author : Robert E. Keane
Publisher : Springer
Page : 191 pages
File Size : 46,6 Mb
Release : 2014-11-04
Category : Science
ISBN : 9783319090153
A new era in wildland fuel sciences is now evolving in such a way that fire scientists and managers need a comprehensive understanding of fuels ecology and science to fully understand fire effects and behavior on diverse ecosystem and landscape characteristics. This is a reference book on wildland fuel science; a book that describes fuels and their application in land management. There has never been a comprehensive book on wildland fuels; most wildland fuel information was put into wildland fire science and management books as separate chapters and sections. This book is the first to highlight wildland fuels and treat them as a natural resource rather than a fire behavior input. Moreover, there has never been a comprehensive description of fuels and their ecology, measurement, and description under one reference; most wildland fuel information is scattered across diverse and unrelated venues from combustion science to fire ecology to carbon dynamics. The literature and data for wildland fuel science has never been synthesized into one reference; most studies were done for diverse and unique objectives. This book is the first to link the disparate fields of ecology, wildland fire, and carbon to describe fuel science. This just deals with the science and ecology of wildland fuels, not fuels management. However, since expensive fuel treatments are being planned in fire dominated landscapes across the world to minimize fire damage to people, property and ecosystems, it is incredibly important that people understand wildland fuels to develop more effective fuel management activities.
Author : Anonim
Publisher : Unknown
Page : 488 pages
File Size : 44,6 Mb
Release : 2003
Category : Forest fires
ISBN : MINN:31951D02996489E
Author : Anonim
Publisher : Unknown
Page : 68 pages
File Size : 53,6 Mb
Release : 1998
Category : Forests and forestry
ISBN : OSU:32435067333864
Author : Todd R. Mills
Publisher : Unknown
Page : 392 pages
File Size : 41,6 Mb
Release : 2000
Category : Birdsongs
ISBN : STANFORD:36105113733872
Birds are indicators of vegetation structure and ecological conditions. The singing activity of birds declines during late-morning periods, which can affect estimates of abundance and conclusions regarding vegetative conditions indexed by birds. Therefore, it is important to quantify periods of bird activity so biologists can plan studies. We determined hourly detections from singing males of 22 nongame bird species in ponderosa pine, quaking aspen, and grassland vegetation types in the Black Hills of South Dakota. Detections of 12 of 22 species differed among 1-hr intervals after sunrise. Detections of yellowrumped warblers, Townsend's solitaires, red-breasted nuthatches, western tanagers, and American robins decreased on count-episodes more than 4 hrs after sunrise. Detections of dusky flycatchers declined on count-episodes more than 3 hrs after sunrise and detections of black-capped chickadees were greatest during the first hour after sunrise and declined afterward. Detections of many other species from songs or calls decreased on count-episodes more than 5 hrs after sunrise. We recommend that bird counts in the Black Hills be completed within 4 hrs after sunrise so estimates of bird abundance are not affected by reduced singing among males.
Author : Anonim
Publisher : Unknown
Page : 496 pages
File Size : 52,7 Mb
Release : 2003
Category : Forest fires
ISBN : CORNELL:31924094747338
Author : Peter Koch
Publisher : Unknown
Page : 924 pages
File Size : 45,9 Mb
Release : 1988
Category : Forest management
ISBN : STANFORD:36105009851135
Author : Douglas Scott Cram
Publisher : Unknown
Page : 36 pages
File Size : 53,5 Mb
Release : 2006
Category : Forest fires
ISBN : MINN:31951D02716582E
Author : Ed Schlatterer,H. Gyde Lund
Publisher : Unknown
Page : 188 pages
File Size : 55,8 Mb
Release : 1984
Category : Forest policy
ISBN : MINN:31951D00269397F
