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Forest Structure And Fire Hazard In Dry Forests Of The Western United States
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Book Synopsis Forest Structure and Fire Hazard in Dry Forests of the Western United States by : David Lawrence Peterson
Download or read book Forest Structure and Fire Hazard in Dry Forests of the Western United States written by David Lawrence Peterson and published by . This book was released on 2005 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fire, in conjunction with landforms and climate, shapes the structure and function of forests throughout the Western United States, where millions of acres of forest lands contain accumulations of flammable fuel that are much higher than historical conditions owing to various forms of fire exclusion. The Healthy Forests Restoration Act mandates that public land managers assertively address this situation through active management of fuel and vegetation. This document synthesizes the relevant scientific knowledge that can assist fuel-treatment projects on national forests and other public lands and contribute to National Environmental Policy Act (NEPA) analyses and other assessments. It is intended to support science-based decisionmaking for fuel management in dry forests of the Western United States at the scale of forest stands (about 1 to 200 acres). It highlights ecological principles that need to be considered when managing forest fuel and vegetation for specific conditions related to forest structure and fire hazard. It also provides quantitative and qualitative guidelines for planning and implementing fuel treatments through various silvicultural prescriptions and surfacefuel treatments. Effective fuel treatments in forest stands with high fuel accumulations will typically require thinning to increase canopy base height, reduce canopy bulk density, reduce canopy continuity, and require a substantial reduction in surface fuel through prescribed fire or mechanical treatment or both. Long-term maintenance of desired fuel loadings and consideration of broader landscape patterns may improve the effectiveness of fuel treatments.
Book Synopsis Guide to Fuel Treatments in Dry Forests of the Western United States by : Morris C. Johnson
Download or read book Guide to Fuel Treatments in Dry Forests of the Western United States written by Morris C. Johnson and published by . This book was released on 2007 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Fire and Fuels Extension of the Forest Vegetation Simulator (FFE-FVS) was used to calulate the immediate effects of treatments on surface fuels, fire hazard, potential fire behavior, and forest structure for respresentative dry forest stands in the Western United States. Treatments considered included pile and burn and prescribed fire.
Book Synopsis Guide to Fuel Treatments in Dry Forests of the Western U. S. by : Morris C. Johnson
Download or read book Guide to Fuel Treatments in Dry Forests of the Western U. S. written by Morris C. Johnson and published by DIANE Publishing. This book was released on 2008 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt: Analyzes a range of fuel treatments for representative dry forest stands in the Western U.S. dominated by ponderosa pine, Douglas-fir, & pinyon pine. Six silvicultural options (no thinning; thinning from below to 50 trees per acre [tpa], 100 tpa, 200 tpa, & 300 tpa; & prescribed fire) are considered in combination with the surface fuel treatments (no treatment, pile & burn, & prescribed fire), resulting in a range of alternative treatments for each representative stand. Fuel treatment scenarios presented here can be used by resource managers to examine alternatives for Nat. Environ. Policy Act documents & other applications that require scientifically based info. to quantify the effects of modifying forest structure & surface fuels. Illustrations.
Book Synopsis Science Basis for Changing Forest Structure to Modify Wildfire Behavior and Severity by :
Download or read book Science Basis for Changing Forest Structure to Modify Wildfire Behavior and Severity written by and published by . This book was released on 2004 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Guide to Fuel Treatments in Dry Forests of the Western United States by : United States Department of Agriculture
Download or read book Guide to Fuel Treatments in Dry Forests of the Western United States written by United States Department of Agriculture and published by CreateSpace. This book was released on 2015-06-25 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: Guide to Fuel Treatments analyzes a range of fuel treatments for representative dry forest stands in the Western United States with overstories dominated by ponderosa pine (Pinus ponderosa), Douglas-fir (Pseudotsuga menziesii), and pinyon pine (Pinus edulis). Six silvicultural options (no thinning; thinning from below to 50 trees per acre [tpa], 100 tpa, 200 tpa, and 300 tpa; and prescribed fire) are considered in combination with three surface fuel treatments (no treatment, pile and burn, and prescribed fire), resulting in a range of alternative treatments for each representative stand. The Fire and Fuels Extension of the Forest Vegetation Simulator (FFE-FVS) was used to calculate the immediate effects of treatments on surface fuels, fire hazard, potential fire behavior, and forest structure. The FFEFVS was also used to calculate a 50-year time series of treatment effects at 10-year increments. Usually, thinning to 50 to 100 tpa and an associated surface fuel treatment were shown to be necessary to alter potential fire behavior from crown fire to surface fire under severe fire weather conditions. This level of fuel treatment generally was predicted to maintain potential fire behavior as surface fire for 30 to 40 years, depending on how fast regeneration occurs in the understory, after which additional fuel treatment would be necessary to maintain surface fire behavior. Fuel treatment scenarios presented here can be used by resource managers to examine alternatives for National Environmental Policy Act documents and other applications that require scientifically based information to quantify the effects of modifying forest structure and surface fuels.
Book Synopsis Guide to Fuel Treatments in Dry Forests of the Western United States: Assessing Forest Structure and Fire Hazard by : Morris C. Johnson
Download or read book Guide to Fuel Treatments in Dry Forests of the Western United States: Assessing Forest Structure and Fire Hazard written by Morris C. Johnson and published by . This book was released on 2007 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Science Basis for Changing Forest Structure to Modify Wildfire Behavior and Severity by : Russell T. Graham
Download or read book Science Basis for Changing Forest Structure to Modify Wildfire Behavior and Severity written by Russell T. Graham and published by . This book was released on 2004 with total page 43 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report describes the kinds, quality, amount, and gaps of scientific knowledge for making informed decisions on fuel treatments used to modify wildfire behavior and effects in dry forests of the interior Western United States (especially forests dominated by ponderosa pine and Douglas-fir). A review of scientific principles and applications relevant to fuel treatment primarily for the dry forests (ponderosa pine and Douglas-fir dominated) of the Western United States is provided for the following topics: fuels, fire hazard, fire behavior, fire effects, forest structure, treatment effects and longevity, landscape fuel patterns, and scientific tools useful for management and planning.
Book Synopsis Effects of Timber Harvest Following Wildfire in Western North America by :
Download or read book Effects of Timber Harvest Following Wildfire in Western North America written by and published by . This book was released on 2009 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: This synthesis provides an ecological foundation for management of the diverse ecosystems and fire regimes of North America, based on scientific principles of fire interactions with vegetation, fuels, and biophysical processes. Although a large amount of scientific data on fire exists, most of those data have been collected at small spatial and temporal scales. Thus, it is challenging to develop consistent science-based plans for large spatial and temporal scales where most fire management and planning occur. Understanding the regional geographic context of fire regimes is critical for developing appropriate and sustainable management strategies and policy. The degree to which human intervention has modified fire frequency, intensity, and severity varies greatly among different ecosystems, and must be considered when planning to alter fuel loads or implement restorative treatments. Detailed discussion of six ecosystems--ponderosa pine forest (western North America), chaparral (California), boreal forest (Alaska and Canada), Great Basin sagebrush (intermountain West), pine and pine-hardwood forests (Southern Appalachian Mountains), and longleaf pine (Southeastern United States)--illustrates the complexity of fire regimes and that fire management requires a clear regional focus that recognizes where conflicts might exist between fire hazard reduction and resource needs. In some systems, such as ponderosa pine, treatments are usually compatible with both fuel reduction and resource needs, whereas in others, such as chaparral, the potential exists for conflicts that need to be closely evaluated. Managing fire regimes in a changing climate and social environment requires a strong scientific basis for developing fire management and policy. --
Book Synopsis A Strategic Assessment of Crown Fire Hazard in Montana by :
Download or read book A Strategic Assessment of Crown Fire Hazard in Montana written by and published by . This book was released on 2004 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 historically fire-adapted forests (ponderosa pine (Pinus ponderosa Dougl. ex Laws.), Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco), dry mixed conifer) that rate high/moderate for fire hazard. Comprehensive restoration treatments that address density, structure, and species composition of high-hazard forests are significantly more effective at reducing hazard than thin-from below approaches that remove smaller trees only. Trees removed as a byproduct of the restoration treatment yielded net revenues averaging over $600 per acre, whereas the thin-from-below approach would require an out-of-pocket expenditure of over $600 per acre. Posttreatment conditions were projected forward 30 years and reevaluated for hazard. Projections revealed that effectiveness of all treatments diminished over time; however, forests receiving the comprehensive restoration treatment remained substantially lower hazard 30 years after treatment than they would have had they received the alternative treatments.
Book Synopsis Fire Regimes: Spatial and Temporal Variability and Their Effects on Forests by : Yves Bergeron
Download or read book Fire Regimes: Spatial and Temporal Variability and Their Effects on Forests written by Yves Bergeron and published by MDPI. This book was released on 2018-04-13 with total page 433 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a printed edition of the Special Issue "Fire Regimes: Spatial and Temporal Variability and Their Effects on Forests" that was published in Forests
Book Synopsis ForestryBased Biomass Economic and Financial Information and Tools: An Annotated Bibliography by :
Download or read book ForestryBased Biomass Economic and Financial Information and Tools: An Annotated Bibliography written by and published by DIANE Publishing. This book was released on with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Six Rivers National Forest (N.F.), Orleans Community Fuels Reduction and Forest Health Project by :
Download or read book Six Rivers National Forest (N.F.), Orleans Community Fuels Reduction and Forest Health Project written by and published by . This book was released on 2008 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis General Technical Report PNW-GTR by :
Download or read book General Technical Report PNW-GTR written by and published by . This book was released on 2004 with total page 754 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Plumas National Forest (N.F.), Concow Hazardous Fuels Reduction Project by :
Download or read book Plumas National Forest (N.F.), Concow Hazardous Fuels Reduction Project written by and published by . This book was released on 2010 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Assessment of Timber Availability from Forest Restoration Within the Blue Mountains of Oregon by :
Download or read book Assessment of Timber Availability from Forest Restoration Within the Blue Mountains of Oregon written by and published by . This book was released on 2008 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt: Changes in forest management have detrimentally affected the economic health of small communities in the Blue Mountain region of Oregon over the past few decades. A build-up of small trees threatens the ecological health of these forests and increases wildland fire hazard. Hoping to boost their economies and also restore these forests, local leaders are interested in the economic value of timber that might be available from thinning treatments on these lands. This study identified densely stocked stands where thinning could provide a reliable source of wood, and examined the quantity, distribution, and economic value of the resulting timber for 5.5 million acres of national forest lands in eastern Oregon. Our findings verified local land managers' observations that the land base to support timber harvest targets in the region is smaller than anticipated in the past. Legal restrictions and current management practices have reduced the acreage available for harvest and mechanical restoration. Additionally, we found that on lands where active forestry is allowable, thinning of most densely stocked stands would not be economically viable. Findings from this analysis can help establish a common understanding of Blue Mountains vegetative and economic conditions for managers trying to restore the region's national forests.
Book Synopsis Science Basis for Changing Forest Structure to Modify Wildfire Behavior and Severity by : U S Department of Agriculture Forest Se
Download or read book Science Basis for Changing Forest Structure to Modify Wildfire Behavior and Severity written by U S Department of Agriculture Forest Se and published by CreateSpace. This book was released on 2015-06-26 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt: More than 80 years of fire research have shown that physical setting, weather, and fuels, combine to determine wildfire intensity and severity. Of these three factors, fuels (vegetation) is the only one that can be treated. The effectiveness and effects of various fuel treatments for restoring dry forests in the Western United States are summarized in this paper. A considerable amount of information is available on fire behavior and the impacts forest structure and fuel modifications have on fire intensity and severity.
Book Synopsis Dry Forests of the Northeastern Cascades Fire and Fire Surrogate Project Site, Mission Creek, Okanogan-Wenatchee National Forest by :
Download or read book Dry Forests of the Northeastern Cascades Fire and Fire Surrogate Project Site, Mission Creek, Okanogan-Wenatchee National Forest written by and published by . This book was released on 2009 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Fire and Fire Surrogate (FFS) project is a large long-term metastudy established to assess the effectiveness and ecological impacts of burning and fire "surrogates" such as cuttings and mechanical fuel treatments that are used instead of fire, or in combination with fire, to restore dry forests. One of the 13 national FFS sites is the Northeastern Cascades site at Mission Creek on the Okanogan-Wenatchee National Forest. The study area includes 12 forested stands that encompass a representative range of dry forest conditions in the northeastern Cascade Range. We describe site histories and environmental settings, experimental design, field methods, and quantify the pretreatment composition and structure of vegetation, fuels, soils and soil biota, entomology and pathology, birds, and small mammals that occurred during the 2000 and 2001 field seasons. We also describe the implementation of thinning treatments completed during 2003 and spring burning treatments done during 2004 and 2006.
