Microclimate Studies in Silvicultural Systems on the Chilcotin Plateau of British Columbia PDF Download
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Author: Robert Matthew Sagar
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 40
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Book Description
Group selection and irregular group shelterwood silvicultural systems are being tested as options to conserve woodland caribou (Rangifer tarandus caribou) habitat. If successful, the systems will be applied within the very dry, cold Sub-Boreal Pine-Spruce (SBPSxc) and very dry, very cold Montane Spruce (MSxv) biogeoclimatic subzones, located on the high-elevation Chilcotin Plateau of west-central British Columbia. In these harsh growing environments, partial cutting strongly influences the microclimate in terms of air and soil temperature, frost events, and snow-free dates. To examine the magnitude of this influence, three pairs of climate stations were set up in partial cuts and clearcuts, across a range of elevations, to compare microclimate conditions. The study also compared north edge, centre, and south edge microsites within one 30-m opening on each of three partial cuts.
Author: Robert Matthew Sagar
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 40
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Book Description
Group selection and irregular group shelterwood silvicultural systems are being tested as options to conserve woodland caribou (Rangifer tarandus caribou) habitat. If successful, the systems will be applied within the very dry, cold Sub-Boreal Pine-Spruce (SBPSxc) and very dry, very cold Montane Spruce (MSxv) biogeoclimatic subzones, located on the high-elevation Chilcotin Plateau of west-central British Columbia. In these harsh growing environments, partial cutting strongly influences the microclimate in terms of air and soil temperature, frost events, and snow-free dates. To examine the magnitude of this influence, three pairs of climate stations were set up in partial cuts and clearcuts, across a range of elevations, to compare microclimate conditions. The study also compared north edge, centre, and south edge microsites within one 30-m opening on each of three partial cuts.
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 : Nature
Languages : en
Pages : 40
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Book Description
This study was initiated in 2001 as part of a uniform shelterwood trial located in the dry, warm Sub-Boreal Spruce subzone (sbsdw) near Williams Lake, B.C., after a second harvesting entry was completed. The focus of the main trial was to test various levels of residual basal retention and harvesting methods on the establishment, survival, and productivity of Douglas-fir regeneration. The microclimate component was set up to help interpret tree performance by comparing the climate conditions among three of the residual basal area treatments (0, 15, and 20 m2/ha). The objectives for the microclimate portion of the shelterwood project were to compare soil temperatures and snow-free periods among the three residual basal area treatments (0, 15, and 20 m2/ha); to compare the incidence, duration, and severity of growing season frosts among the three residual basal area treatments (0, 15, and 20 m2/ha); and to investigate the effects of local canopy density on minimum near-ground air temperatures and duration of frost events during the growing season.--Document.
Author: David Leslie Spittlehouse
Publisher: University of British Columbia Press
ISBN:
Category : Nature
Languages : en
Pages : 62
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Book Description
The study described in this report is part of a larger project intended to address concerns about the effects of clear-cut harvesting on high-elevation forests in southern interior British Columbia. The study investigated microclimatic conditions in mature forest and in clear-cuts of 0.1 to 10 hectares. Parameters measured include solar radiation, ultraviolet-B radiation, energy balance (fluxes of net radiation, soil heat, sensible heat, & water vapour), wind speed, precipitation & snow melt, and air & soil temperature. Results compare measurements made in forests with those made in the openings. Implications of the findings for plants & for forest hydrology are discussed.
Author: M. J. Jull
Publisher: British Columbia Ministry of Forests Research Program
ISBN:
Category : Abies lasiocarpa
Languages : en
Pages : 108
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Book Description
Author: British Columbia. Silviculture Branch
Publisher: B.C. Ministry of Forests, Silviculture Branch
ISBN:
Category : Forest management
Languages : en
Pages : 42
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Book Description
Author: Robert Matthew Sagar
Publisher:
ISBN:
Category : Douglas fir
Languages : en
Pages : 42
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Book Description
Author: British Columbia. Ministry of Forests
Publisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 56
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Book Description
This guidebook is designed to aid forest workers in choosing a silvicultural system in compliance with the British Columbia Forest Practices Code. It lists and defines the different types of silvicultural systems used in British Columbia, promoting a common terminology for basic definitions and silvicultural system concepts throughout the province. The guide offers a step-by-step decision-making process on how to choose a silvicultural system, and details the factors that forest workers should consider in making this decision. The guide also includes a sample checklist of silvicultural prescription requirements and recommended supporting information, plus an Integrated Silviculture Information System/Major Licensee Silviculture Information System key for silvicultural systems.
Author: K. Dave Coates
Publisher: British Columbia, Ministry of Forests, Research Program
ISBN:
Category : Clearcutting
Languages : en
Pages : 144
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Book Description
The Date Creek silvicultural systems study was one of several projects established in British Columbia in the early 1990s to examine alternatives to traditional clear-cut harvesting. The study comprises a multidisciplinary set of experiments that examines ecosystem processes and timber production in undisturbed, partially cut, and clear-cut stands within the transitional coastal-interior forests of north-western British Columbia. This report provides background information on the Date Creek study in three major sections. The first is an overview of the study area, its climate, soils, vegetation, and the experimental design and silvicultural treatments used in the research. The second section supplies detailed information on the research area (ecosystem mapping and soils) and the individual treatment units (ecosystems, soils, pre- and post-treatment stand structure). The final section outlines the objectives of individual experiments under way.
Author: Robert Matthew Sagar
Publisher:
ISBN:
Category : Bioclimatology
Languages : en
Pages : 64
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Book Description
