Growth Of Ponderosa Pine Stands In Relation To Mountain Pine Beetle Susceptibility

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Growth of Ponderosa Pine Stands in Relation to Mountain Pine Beetle Susceptibility

Anonim
Growth of Ponderosa Pine Stands in Relation to Mountain Pine Beetle Susceptibility Book PDF

Author : Anonim
Publisher : Unknown
Page : 20 pages
File Size : 55,6 Mb
Release : 1999
Category : Mountain pine beetle
ISBN : MINN:31951D02977849H

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Growth of Ponderosa Pine Stands in Relation to Mountain Pine Beetle Susceptibility by Anonim Pdf

Ten-year diameter and basal area growth were determined for partially cut stands at 4 locations. Average diameters in the partially cut plots generally increased by 1 inch or more, while average diameter in the uncut controls increased by 0.9 inches or less. Individual tree growth is discussed in relation to potential susceptibility to mountain pine beetle infestation. Basal area increases ranged from 0.9 to 1.9 ft2/acre/ yr in partially cut plots, while basal area increases in the control plots ranged from 0.4 to 1.4 ft2/acre/yr. Endemic mountain pine beetle infestations and snow breakage accounted for most of the mortality on the plots, which decreased the residual basal area and basal area growth. Increases in basal area are used to estimate the length of time required for various stand densities to reach the susceptibility thresholds for mountain pine beetle infestation. Stand marking may influence future susceptibility to beetle infestations.

Growth of Lodgepole Pine Stands and Its Relation to Mountain Pine Beetle Susceptibility

S. A. Mata
Growth of Lodgepole Pine Stands and Its Relation to Mountain Pine Beetle Susceptibility Book PDF

Author : S. A. Mata
Publisher : Unknown
Page : 24 pages
File Size : 54,8 Mb
Release : 2003
Category : Forests and forestry
ISBN : MINN:31951D03001922G

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Growth of Lodgepole Pine Stands and Its Relation to Mountain Pine Beetle Susceptibility by S. A. Mata Pdf

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

Mountain Pine Beetle Attack in Ponderosa Pine: Comparing Methods for Rating Susceptibility

David C. Chojnacky
Mountain Pine Beetle Attack in Ponderosa Pine Comparing Methods for Rating Susceptibility Book PDF

Author : David C. Chojnacky
Publisher : Unknown
Page : 16 pages
File Size : 54,8 Mb
Release : 2000
Category : Mountain pine beetle
ISBN : MINN:31951D03001933B

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Mountain Pine Beetle Attack in Ponderosa Pine: Comparing Methods for Rating Susceptibility by David C. Chojnacky Pdf

Two empirical methods for rating susceptibility of mountain pine beetle attack in ponderosa pine were evaluated. The methods were compared to stand data modeled to objectively rate each sampled stand for susceptibly to bark-beetle attack. Data on bark-beetle attacks, from a survey of 45 sites throughout the Colorado Plateau, were modeled using logistic regression to estimate the probability of attack on individual trees from tree and stand variables. The logistic model allowed flexibility to easily scale results up to a stand level for comparison to the empirical methods. The empirical method, developed by Munson and Anhold, most closely correlated to the logistic regression results. However, the Munson/Anhold method rated all 45 study sites as either moderately or highly susceptible to bark-beetle attack, which raises concern about its lack of sensitivity. Future work on evaluating risk of bark-beetle impact should consider more than stand characteristics.

The Mountain Pine Beetle

Pacific Forestry Centre,Mountain Pine Beetle Initiative (Canada)
The Mountain Pine Beetle Book PDF

Author : Pacific Forestry Centre,Mountain Pine Beetle Initiative (Canada)
Publisher : Unknown
Page : 304 pages
File Size : 43,9 Mb
Release : 2006
Category : Forest management
ISBN : 0662426231

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The Mountain Pine Beetle by Pacific Forestry Centre,Mountain Pine Beetle Initiative (Canada) Pdf

"This book presents a synthesis of published information on mountain pine beetle (Dendroctonus ponderosae Hopkins [Coleoptera: Scolytidae]) biology and management with an emphasis on lodgepole pine (Pinus contorta Dougl. ex Loud. var. latifolia Engelm.) forests of western Canada. Intended as a reference for researchers as well as forest managers, the book covers three main subject areas: mountain pine beetle biology, management, and socioeconomic concerns. The chapters on biology cover taxonomy, life history and habits, distribution, insect-host tree interactions, development and survival, epidemiology, and outbreak history. The management section covers management strategy, survey and detection, proactive and preventive management, and decision support tools. The chapters on socioeconomic aspects include an economic examination of management programs and the utilization of post-beetle salvage timber in solid wood, panelboard, pulp and paper products."--Publisher's description.

General Technical Report RMRS

Anonim
General Technical Report RMRS Book PDF

Author : Anonim
Publisher : Unknown
Page : 22 pages
File Size : 52,8 Mb
Release : 1998
Category : Forests and forestry
ISBN : UOM:39015049323481

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General Technical Report RMRS by Anonim Pdf

Research Paper RMRS

Anonim
Research Paper RMRS Book PDF

Author : Anonim
Publisher : Unknown
Page : 152 pages
File Size : 43,9 Mb
Release : 1998
Category : Forests and forestry
ISBN : UOM:39015060918979

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Research Paper RMRS by Anonim Pdf

Effectiveness of Thinning Ponderosa Pine Stands in Reducing Mountain Pine Beetle-caused Tree Losses in the Black Hills, Preliminary Observations

William F. McCambridge
Effectiveness of Thinning Ponderosa Pine Stands in Reducing Mountain Pine Beetle caused Tree Losses in the Black Hills Preliminary Observations Book PDF

Author : William F. McCambridge
Publisher : Unknown
Page : 4 pages
File Size : 41,8 Mb
Release : 1982
Category : Forest thinning
ISBN : MINN:31951D02996044G

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Effectiveness of Thinning Ponderosa Pine Stands in Reducing Mountain Pine Beetle-caused Tree Losses in the Black Hills, Preliminary Observations by William F. McCambridge Pdf

Report

Anonim
Report Book PDF

Author : Anonim
Publisher : Unknown
Page : 740 pages
File Size : 49,6 Mb
Release : 2000
Category : Forests and forestry
ISBN : CORNELL:31924089488443

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Report by Anonim Pdf

Blue Mountains Forest Health Report

Anonim
Blue Mountains Forest Health Report Book PDF

Author : Anonim
Publisher : Unknown
Page : 424 pages
File Size : 52,7 Mb
Release : 1991
Category : Blue Mountains (Or. and Wash.)
ISBN : UVA:X001943801

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Blue Mountains Forest Health Report by Anonim Pdf