Wood Decay and Degradation in Standing Lodgepole Pine (Pinus Contorta Var. Latifolia Engelm.) Killed by Mountain Pine Beetle (Dendroctonus Ponderosa Hopkins: Coleoptera) PDF Download
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Author:
Publisher:
ISBN:
Category : Lodgepole pine
Languages : en
Pages : 28
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Book Description
Author:
Publisher:
ISBN:
Category : Lodgepole pine
Languages : en
Pages : 28
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Book Description
Author: Rod Stirling
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 38
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Book Description
This paper presents the research analysis of visible/near infrared spectroscopy in identification of decay in mountain pine beetle affected lumber. The research premise was based upon the concept that using visible/near infrared spectroscopy would aid in improving more immediate decay detection in lumber. Because of the increasing amounts of decay, specifically sap-rot, and the increase of lumber production within the planer mills, soley relying on visible detection of the rot is not feasible. Although automated detection systems do use colour cameras, this research analysis was to provide information on whether the process could be improved upon in decay detection for the lumber graders.
Author: Barbara Dalpke
Publisher:
ISBN:
Category : Business & Economics
Languages : en
Pages : 92
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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 (MPB) epidemic. It presents the results of pilot plant Kraft and mechanical pulping trials that were conducted to determine the influence of time-since-death (TSD) of (MPB)-killed lodgepole pine on pulping and pulp quality. Samples included trees of red, grey and late grey attack stages as well as unattacked trees; sample sites were established in three different biogeoclimatic subzones in British Columbia in order to account for natural variability. Prior to pulping, samples were tested for wood and fibre properties as well as chip quality. Kraft and thermomechanical (TMP) pulping parameters were monitored, pulp quality was determined, and sheet structure was evaluated by scanning electron microscopy.--Includes text from document.
Author: Arthur Lawrence Roe
Publisher:
ISBN:
Category : Lodgepole pine
Languages : en
Pages : 32
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Author: Brad Wang
Publisher:
ISBN:
Category : Crafts & Hobbies
Languages : en
Pages : 28
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Book Description
The issue of how to maximize the value recovery from beetle-attacked pine wood is critical to the wood panel industry in British Columbia. This paper discusses the pilot plant tests and mill trials that were conducted to quantify the impact of using mountain pine beetle (MPB)-attacked lodgepole pine (Pinus contorta Douglas) wood on green veneer processing to determine of it makes economic sense to sort and process MPB logs separately from normal logs of SPF (spruce-lodgepole pine-alpine fir) mix for plywood manufacturing.--Includes text from document.
Author: Walter E. Cole
Publisher:
ISBN:
Category : Lodgepole pine
Languages : en
Pages : 8
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Author: Kathy J. Lewis
Publisher:
ISBN:
Category : Nature
Languages : en
Pages : 40
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Book Description
Despite the history of mountain pine beetle (Dendroctonous ponderosae Hopk.) outbreaks in British Columbia, including the outbreak in the mid 1980s that affected timber supply in the Quesnel Timber Supply Area, little was known about the post-mortality rate of deterioration of wood quality and quantity, and the rate of change in stand structure due to fall of dead trees. This study used dendrochronology to crossdate pine killed by mountain pine beetle to determine the exact year of mortality and to characterize decay and degradation in factors of wood quality and quantity over time.--Includes text from document.
Author: Colette Breuil
Publisher:
ISBN:
Category : Nature
Languages : en
Pages : 30
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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 identify and characterize the fungal species that may potentially damage wood and decrease its market values. It focuses on the characterization of 40 different basidiomycetous fungi that were isolated form 12 different sites across British Columbia. Fungi were isolated from mountain pine beetle-infested lodgepole pine trees in green, red, and grey stages from each of the 12 sites.--Includes text from Government of Canada publications site and from document.
Author: Walter E. Cole
Publisher:
ISBN:
Category : Insect pests
Languages : en
Pages : 64
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Author: Dale L. Bartos
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 12
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Book Description
This study was conducted to evaluate the dynamics of endemic populations of mountain pine beetle (Dendroctonus ponderosae Hopkins). In addition, we extended the geographical range of an existing data base recorded in Utah with similar data from Wyoming. This work was accomplished in lodgepole pine (Pinus contorta Dougl. Var. latifolia Engelm.) stands on the Medicine Bow National Forest in south-central Wyoming. Thirty-eight variable-radius paired plots (BAF 10) were measured during the summer of 1987. Host-tree condition and mountain pine beetle infestation characteristics were determined from currently and previously infested trees. Presence and severity of Armillaria root disease and stem pathogens was determined. Tree condition and infestation patterns were similar at this site to those found in earlier studies. Trees selected by endemic mountain pine beetle populations were infested with Comandra blister rust (Cronartium Comandra PK) and root disease (Armillaria spp.). Host-tree condition and mountain pine beetle infestation patterns recorded in this study parallel those identified earlier in Utah and will help land managers identify trees to cut to reduce stand hazard to mountain pine beetle infestation.
