Temporal Composition And Structure Of Post Beetle Lodgepole Pine Stands

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Temporal Composition and Structure of Post-beetle Lodgepole Pine Stands

K. Runzer
Temporal Composition and Structure of Post beetle Lodgepole Pine Stands Book PDF

Author : K. Runzer
Publisher : Unknown
Page : 80 pages
File Size : 43,8 Mb
Release : 2008
Category : Nature
ISBN : UIUC:30112101885363

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Temporal Composition and Structure of Post-beetle Lodgepole Pine Stands by K. Runzer Pdf

"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.

Mountain Pine Beetle

Fred L. Bunnell,L. L. Kremsater,Isabelle Houde
Mountain Pine Beetle Book PDF

Author : Fred L. Bunnell,L. L. Kremsater,Isabelle Houde
Publisher : Unknown
Page : 112 pages
File Size : 46,8 Mb
Release : 2011
Category : Forest management
ISBN : MINN:31951D03276084L

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Mountain Pine Beetle by Fred L. Bunnell,L. L. Kremsater,Isabelle Houde Pdf

This document provides a synthesis of recently completed studies to assess the ecological consequences of forest management after attack by mountain pine beetle or other large-scale disturbances. Studies are assessed for their contributions to gaps in knowledge previously identified in the Mountain Pine Beetle Initiative Working Paper "Evaluating effects of large scale salvage logging for mountain pine beetle on terrestrial and aquatic vertebrates," which was published in 2004. This report focuses on studies developed through the federal Mountain Pine Beetle Initiative, the federal Mountain Pine Beetle Program, and the complementary BC Forest Science Program. Relevant information from other jurisdictions is sometimes included to augment those studies. Topics examined are: the impacts of beetle kill and salvage operations on habitat attributes; the impacts of beetle kill and salvage operations on attendant processes, such as snag fall rates, light interception, and snow accumulation; and the wildlife response to large-scale beetle outbreaks and management strategies. For each of these three topics, we provide a summary of: research to date; pertinent findings to date; and gaps in research.

Abundance of Secondary Structure in Lodgepole Pine Stands Affected by the Mountain Pine Beetle in the Cariboo-Chilcotin

Anonim
Abundance of Secondary Structure in Lodgepole Pine Stands Affected by the Mountain Pine Beetle in the Cariboo Chilcotin Book PDF

Author : Anonim
Publisher : Unknown
Page : 37 pages
File Size : 46,6 Mb
Release : 2009
Category : Conifers
ISBN : 1100134549

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Abundance of Secondary Structure in Lodgepole Pine Stands Affected by the Mountain Pine Beetle in the Cariboo-Chilcotin by Anonim Pdf

The term secondary structure was coined as a way to describe the abundance, composition and distribution of trees that will remain alive in stands impacted by the mountain pine beetle (MPB, Dendroctonus ponderosae Hopkins) epidemic. The epidemic has been killing extensive swaths of lodgepole pine in the interior forests of British Columbia since the late 1990s. Secondary structure can be broken into two main components: understorey and overstorey trees. Understorey trees include seedlings and saplings and can include smaller lodgepole pine trees that survive the epidemic. Overstorey trees that survive the beetle epidemic are typically of non-host species (e.g., interior spruce, subalpine fir, Douglas-fir, or broadleaf species). This document reports on a study of the extent and abundance of secondary structure in the Cariboo-Chilcotin region of the central interior of British Columbia.--Document and publisher's website.

A Silvicultural Assessment of 10 Lodgepole Pine Stands After Partial Cutting to Reduce Susceptibility to Mountain Pine Beetle

Roger J. Whitehead
A Silvicultural Assessment of 10 Lodgepole Pine Stands After Partial Cutting to Reduce Susceptibility to Mountain Pine Beetle Book PDF

Author : Roger J. Whitehead
Publisher : Unknown
Page : 56 pages
File Size : 54,9 Mb
Release : 2007
Category : Nature
ISBN : MINN:31951D027288224

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A Silvicultural Assessment of 10 Lodgepole Pine Stands After Partial Cutting to Reduce Susceptibility to Mountain Pine Beetle by Roger J. Whitehead Pdf

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.

Information Forestry

Anonim
Information Forestry Book PDF

Author : Anonim
Publisher : Unknown
Page : 8 pages
File Size : 53,6 Mb
Release : 2009-04
Category : Forests and forestry
ISBN : WISC:89099183642

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Information Forestry by Anonim Pdf

Historic Influence of the Mountain Pine Beetle on Stand Dynamics in Canada's Rocky Mountain Parks

Pamela Dykstra,T. F. Braumandl,Hawkes, B. C. (Brad C.),Pacific Forestry Centre
Historic Influence of the Mountain Pine Beetle on Stand Dynamics in Canada s Rocky Mountain Parks Book PDF

Author : Pamela Dykstra,T. F. Braumandl,Hawkes, B. C. (Brad C.),Pacific Forestry Centre
Publisher : Unknown
Page : 92 pages
File Size : 52,9 Mb
Release : 2006
Category : Ecological disturbances
ISBN : MINN:31951D02376322W

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Historic Influence of the Mountain Pine Beetle on Stand Dynamics in Canada's Rocky Mountain Parks by Pamela Dykstra,T. F. Braumandl,Hawkes, B. C. (Brad C.),Pacific Forestry Centre Pdf

The Canadian government announced the Mountain Pine Beetle Initiative (MPBI) in 2002 to address the socio-economic and ecological consequences of an epidemic of mountain pine beetle (Dendroctonus ponderosae Hopkins). The objective of this study was to establish baseline information on the ecological characteristics that occur at different stages of succession, resulting from mountain pine beetle disturbance at different time intervals. Key issues addressed by this study were: the post-beetle ecological character of stands; the ecological legacies that should be sought post-beetle; maintenance of ecological integrity in beetle-damaged landscapes; and the impacts of beetles on regeneration. This paper presents a study of stand conditions following two historic mountain pine beetle outbreaks events in the 1940s and 1980s. The study quantified structural and species composition of stands at different stages of succession (25 years and 65 years), and quantified the differences that occur in forest development between stands with and without disturbance by the beetle. It concludes with several recommendations for management of post-disturbance landscapes.

Mountain Pine Beetle Infestations in Relation to Lodgepole Pine Diameters

Walter E. Cole,Gene D. Amman
Mountain Pine Beetle Infestations in Relation to Lodgepole Pine Diameters Book PDF

Author : Walter E. Cole,Gene D. Amman
Publisher : Unknown
Page : 8 pages
File Size : 48,7 Mb
Release : 1969
Category : Forests and forestry
ISBN : UIUC:30112104065344

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Mountain Pine Beetle Infestations in Relation to Lodgepole Pine Diameters by Walter E. Cole,Gene D. Amman Pdf

Tree losses resulting from infestation by the mountain pine beetle (Dendroctonus ponderosae Hopkins) were measured in two stands of lodgepole pine (Pinus contorta Dougl.) where the beetle population had previously been epidemic. Measurement data showed that larger diameter trees were infested and killed first. Tree losses ranged from 1 percent of trees 4 inches (d.b.h.) to 87 percent of those 16 inches and greater d.b.h. Numbers of adult beetle emergence holes averaged 1.3 per square foot of bark area in trees 7 inches d.b.h. and 62 in trees 28 inches and greater d.b.h. The observations indicate that large infestations of mountain pine beetle depend on the presence of large diameter trees within a stand of lodgepole pine, thus implying that beetle population growth is food-limited.

Preliminary Risk Rating for Mountain Pine Beetle Infestation of Lodgepole Pine Forests Over Large Areas with Ordinal Regression Modelling

Colin Robertson
Preliminary Risk Rating for Mountain Pine Beetle Infestation of Lodgepole Pine Forests Over Large Areas with Ordinal Regression Modelling Book PDF

Author : Colin Robertson
Publisher : Unknown
Page : 34 pages
File Size : 45,8 Mb
Release : 2009
Category : Forest management
ISBN : MINN:31951D030260801

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Preliminary Risk Rating for Mountain Pine Beetle Infestation of Lodgepole Pine Forests Over Large Areas with Ordinal Regression Modelling by Colin Robertson Pdf

In western Canada, the operational risk rating system for mountain pine beetle is based on biological knowledge gained from a rich legacy of stand-scale field studies. Owing to the large spatial and temporal extents of the current epidemic, new research into large-area mountain pine beetle processes has revealed further insights into the landscape-scale characteristics of beetle infested forests. This research evaluates the potential for this new knowledge to augment an established system for rating the short-term risk of tree mortality in a stand due to mountain pine beetle.--Publisher's website.