Microclimate Studies in Mountain Pine Beetle-damaged Silvicultural Systems on the Chilcotin Plateau PDF Download
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Author: Robert Matthew Sagar
Publisher:
ISBN:
Category : Bioclimatology
Languages : en
Pages : 60
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Book Description
The objectives of this study were to: 1. compare the key environmental variables between blocks (elevational effect) and treatments (clearcut and irregular group shelterwood with whole-tree harvesting partial cut), and between microsites within partial cut openings (north and south edges and centre); and 2. examine temporal changes occurring to environmental variables in the context of the changing biological environment. This document includes an introduction, methods, results and discussion, and a summary.--Includes text from document.
Author: Robert Matthew Sagar
Publisher:
ISBN:
Category : Bioclimatology
Languages : en
Pages : 60
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Book Description
The objectives of this study were to: 1. compare the key environmental variables between blocks (elevational effect) and treatments (clearcut and irregular group shelterwood with whole-tree harvesting partial cut), and between microsites within partial cut openings (north and south edges and centre); and 2. examine temporal changes occurring to environmental variables in the context of the changing biological environment. This document includes an introduction, methods, results and discussion, and a summary.--Includes text from document.
Author: Nola Marie Daintith
Publisher:
ISBN:
Category : Forest dynamics
Languages : en
Pages : 32
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Book Description
The Itcha-Ilgachuz Research Project was initiated in the west Chilcotin region of central British Columbia to test variants of group selection and irregular group shelterwood silvicultural systems for managing lodgepole pine (Pinus contorta var. latifolia) forests for timber and northern caribou (Rangifer tarandus caribou Gmelin, northern ecotype) winter habitat. The results presented in this report are from three assessments that have been completed since the start of the mountain pine beetle outbreak, and are provided in context with the results from the earlier natural regeneration study. The results provide insight into how successfully the study sites and surrounding forests, which have sustained variable levels of mortality, regenerate naturally.--Includes text from document.
Author: J. M. Schmid
Publisher:
ISBN:
Category : Microclimatology
Languages : en
Pages : 12
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Book Description
Author: Dale L. Bartos
Publisher:
ISBN:
Category : Forest thinning
Languages : en
Pages : 16
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Book Description
Author: Charles Sartwell
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 8
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Book Description
Author:
Publisher:
ISBN:
Category : Forest management
Languages : en
Pages : 76
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Book Description
Author: J. M. Schmid
Publisher:
ISBN:
Category : Microclimatology
Languages : en
Pages : 12
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Book Description
Author: Dale L. Bartos
Publisher:
ISBN:
Category : Forest thinning
Languages : en
Pages : 12
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Book Description
Author: Walter E. Cole
Publisher:
ISBN:
Category : Insect pests
Languages : en
Pages : 64
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Book Description
Author: J. M. Schmid
Publisher:
ISBN:
Category : Black Hills National Forest (S.D. and Wyo.)
Languages : en
Pages : 8
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Book Description
Mountain pine beetle-killed ponderosa pine trees in three stands of different stocking levels near Bear Mountain in the Black Hills National Forest were surveyed over a 5-year period to determine how long they persisted as unbroken snags. Rate of breakage varied during the first 5 years after MPB infestation: only one tree broke during the first 2 years in the three stands; breakage increased during the third year; the highest percentage of snags broke during the fourth year; and 10% to 14% broke in the fifth year. Cumulatively, snag breakage was 76%, 91%, and 95% in a GSL 80/90, GSL 100/110, and unmanaged stand, respectively. On average, 56% of the snags broke below 25 ft. The rate and height of breakage in mountain pine beetle-killed trees indicates that they are unlikely to persist as suitable snags for more than 5 to 10 years after infestation.
