Download or read book Beetle proofed Lodgepole Pine Stands in Interior British Columbia Have Less Damage from Mountain Pine Beetle written by Roger J. Whitehead and published by Canadian Government Publishing. This book was released on 2005-01-01 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Growth of Lodgepole Pine Stands and Its Relation to Mountain Pine Beetle Susceptibility written by S. A. Mata and published by . This book was released on 2003 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: Periodic diameter and basal area growth were determined for partially cut stands of lodgepole pine at five locations over approximately 10 year periods. After cutting, average diameters in the partially cut plots generally increased by 0.8 inches or more, while average diameter in the uncut controls increased by 0.6 inches or less. Diameter growth in the partially cut plots was generally significantly greater than diameter growth in the controls. Individual tree growth is discussed in relation to potential susceptibility to mountain pine beetle infestation. Basal area decreased in three of the four GSL (growing stock level) 40 stands because of windthrow. Basal area generally increased >1.0 ft 2 / acre/year in partially cut plots except in the GSL 40 stands with substantial windthrow and one GSL 100 with an Armillaria infection pocket. Basal area increases in the control plots ranged from 0.2 to 1.1 ft 2 /acre/year, although the one control with a BA growth rate of 1.1 ft 2 /acre/year had a relatively low initial BA. Data from the stands are employed in the susceptibility rating methods of Amman et al.(1977), Shore and Safranyik (1992),and Anhold et al. (1996 to determine stand susceptibility and the results discussed in terms of general applicability of these methods to partially cut stands. Basal area growth is used to estimate the length of time required for various stand densities to reach specific susceptibility thresholds for mountain pine beetle infestation. Several of the GSL 40 stands are not projected to reach the susceptibility thresholds in 100 years because of windthrow. Barring mortality 1%,GSL 80 stands are estimated to reach the basal area threshold of 120 ft 2 per acre in
Download or read book Battling the Beetle written by Ben Parfitt and published by Canadian Centre Policy Alternatives. This book was released on 2005 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: The CCPA would like to thank the following organizations for their financial contributions to this work: The BC Federation of Labour, The BC Government and Service Employees' Union, The Communications, Energy and Paperworkers Union, The Endswell Foundation, The Pulp, Paper and Woodworkers of Canada and The United Steelworkers of America District 3. Cover beetle image courtesy of The Canadian Fores [...] While a significant portion of the trees attacked will be profitably logged, an even greater portion will not, leading to a looming gap in available timber that will result in the loss of one quarter of existing income in many Interior communities.1 Given the severity of the outbreak and its implications for the wellbeing of forests and communities, the BC government's action plan speaks comparati [...] The area includes 30-plus communities ranging from 100 Mile House in the southern portion of the Cariboo Forest Region through Prince George and west to Smithers in the Prince Rupert Forest Region.20 The full extent of the beetle What the authors of that report could not have known was that in the attack remains poorly ensuing three years the very definition of "susceptible" has changed along quan [...] Two central questions before British Columbians are whether the province is responding adequately to the challenges posed by the beetles, in particular in the area of reforestation, and whether we are getting a fair return from logging companies in the midst of an unprecedented, government-mandated, logging increase in response to the beetles. [...] It also heavily influenced the thinking of government-appointed bodies such as the Forest Resources Commission, By the Ministry of Forests which made many recommendations to the province in 1991 on the need own estimate, we are on the for permanent and secured investment pools for reforestation efforts.
Download or read book A Silvicultural Assessment of 10 Lodgepole Pine Stands After Partial Cutting to Reduce Susceptibility to Mountain Pine Beetle written by Roger J. Whitehead and published by . This book was released on 2007 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the past 15 years, selective cutting prescriptions have been applied by forest operations in southeastern British Columbia as part of a strategy to reduce landscape-level susceptibility to damage from mountain pine beetle outbreaks. The prescriptions have been applied in stands where maintenance of some mature forest cover is needed to meet management objectives for viewscapes, recreation and habitat or to hold some pine volume during periods of rising beetle activity until it is required or available for harvest. In this study, we examined 10 of these sites 5 to 14 years after harvest, and determined current stand composition and structure from direct sampling and pre- and post-treatment stand characteristics from stand reconstruction. We then related these characteristics to original treatment specifications; the volume removed during harvest and remaining on site after treatment; subsequent losses to wind, snow or bark beetle damage; current stocking status; radial growth rates of residual overstorey trees; and the nature of fuel complexes created and effects of treatment on potential fire behaviour.
Download or read book The Western Bark Beetle Research Group written by and published by . This book was released on 2009 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The compilation of papers in this proceedings is based on a symposium sponsored by the Insect and Diseases Working Group (D5) at the 2007 Society of American Foresters (SAF) convention in Portland, Oregon. The selection of topics parallels the research priorities of the Western Bark Beetle Research Group (WBBRG) (USDA Forest Service, Research and Development), which had been recently formed at the time of the symposium. Reflecting a unique partnership within the Forest Service, each paper was jointly prepared by a research scientist with the WBBRG and one or more entomologists with Forest Health Protection (USDA Forest Service, State and Private Forestry). Among these papers is a description of the currently elevated impacts of bark beetles in the Western United States; descriptions of the current state of knowledge of bark beetle response to vegetation management and also to climate change; discussions of the complex interactions of bark beetles and fire and of the complex ecological and socioeconomic impacts of infestations; an overview of the use of semiochemical (behavioral chemicals)-based technology for conifer protection; and a case study exemplifying efforts to assess risks posed by nonnative invasive bark beetles." --
Download or read book Mountain Pine Beetle Dynamics in Lodgepole Pine Forests written by Walter E. Cole and published by . This book was released on 1980 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Considering the Effectiveness of Mountain Pine Beetle Mitigation Strategies written by Nicholas C. Coops and published by . This book was released on 2008 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents the broad range of mitigation strategies associated with the management of mountain pine beetle (Dendroctonus ponderosae Hopkins), including methods that are currently utilized or proposed for controlling beetle populations, the manner in which the effectiveness of these approaches is monitored and assessed and, finally, the role that remotely sensed data may play in a large-area monitoring system. To this end, the authors first review the goals of effectiveness monitoring and introduce a general classification system to clarify the purpose and practice of efficacy monitoring. Based on these principles, the review is then structured around effectiveness evaluations for managing forest pests, primarily mountain, southern, and western pine beetles throughout North America. These evaluations are grouped by management strategy: silvicultural treatments; prescribed burns; and the use of attractants, repellants, and insecticides. Finally, the authors propose the use of remotely sensed data as a complementary tool for monitoring changes in the extent and severity of mountain pine beetle damage across large areas.--Document.
Download or read book Umpqua National Forest N F D Bug Hazard Reduction Timber Sale 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:
Download or read book Proceedings Symposium on the Management of Lodgepole Pine to Minimize Losses to the Mountain Pine Beetle Kalispell MT July 12 14 1988 written by and published by . This book was released on 1989 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Salvage Logging and Its Ecological Consequences written by David B. Lindenmayer and published by Island Press. This book was released on 2012-07-16 with total page 247 pages. Available in PDF, EPUB and Kindle. Book excerpt: Salvage logging—removing trees from a forested area in the wake of a catastrophic event such as a wildfire or hurricane—is highly controversial. Policymakers and those with an economic interest in harvesting trees typically argue that damaged areas should be logged so as to avoid “wasting” resources, while many forest ecologists contend that removing trees following a disturbance is harmful to a variety of forest species and can interfere with the natural process of ecosystem recovery. Salvage Logging and Its Ecological Consequences brings together three leading experts on forest ecology to explore a wide range of issues surrounding the practice of salvage logging. They gather and synthesize the latest research and information about its economic and ecological costs and benefits, and consider the impacts of salvage logging on ecosystem processes and biodiversity. The book examines • what salvage logging is and why it is controversial • natural and human disturbance regimes in forested ecosystems • differences between salvage harvesting and traditional timber harvesting • scientifically documented ecological impacts of salvage operations • the importance of land management objectives in determining appropriate post-disturbance interventions Brief case studies from around the world highlight a variety of projects, including operations that have followed wildfires, storms, volcanic eruptions, and insect infestations. In the final chapter, the authors discuss policy management implications and offer prescriptions for mitigating the impacts of future salvage harvesting efforts. Salvage Logging and Its Ecological Consequences is a “must-read” volume for policymakers, students, academics, practitioners, and professionals involved in all aspects of forest management, natural resource planning, and forest conservation.
Download or read book Interaction Between Mountain Pine Beetle and Dynamics of Lodgepole Pine Stands written by Walter E. Cole and published by . This book was released on 1973 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Commercial Thinning of Mature Lodgepole Pine written by Canadian Forest Service and published by . This book was released on 2001-01-01 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Management of Lodgepole Pine to Reduce Losses from the Mountain Pine Beetle written by L. Safranyik and published by Victoria, B.C., Pacific Forest Research Centre, Canadian Forestry Service. This book was released on 1974 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Klamath National Forest N F Thom Seider Vegetation Management and Fuels Reduction Project written by and published by . This book was released on 2009 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Stand level Effects of the Mountain Pine Beetle Outbreak in the Central British Columbia Interior written by Chris Hawkins and published by . This book was released on 2007 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study is part of a series of research papers that explore the biological, social, and economic aspects of British Columbia's mountain pine beetle epidemic. The purpose of this report is to examine document changes in stand characteristics of pine dominated stands following mountain pine beetle (MPB) attack and to assess the potential of stand development after MPB attack without management intervention.--Includes text from Government of Canada publications site and from document.
Download or read book Temporal Composition and Structure of Post beetle Lodgepole Pine Stands written by K. Runzer and published by . This book was released on 2008 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: "A recent survey of mountain pine beetle (MPB) attack in mature and immature pine leading stands indicated that attack rate was a function of tree size, age and stand density. However, the temporal dynamics of MPB attack in mature and immature stands, as well as the release of the regeneration layer or secondary structure under a dying canopy, are poorly understood. The primary objectives of this study were to i) investigate temporal and spatial aspects of MPB attack, ii) investigate regeneration dynamics (mortality and growth) of post-beetle attack, iii) model growth and yield with actual mortality and regeneration metrics, iv) describe economic opportunities of harvest scheduling with respect to post-MPB stand structure and v) develop improved management and regeneration options."--Document.
Download or read book Lodgepole Pine Losses to Mountain Pine Beetle Related to Elevation written by Gene D. Amman and published by . This book was released on 1973 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
