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Comparing silvicultural systems in a Coastal montane forest: productivity and cost of harvesting operations

https://library.fpinnovations.ca/en/permalink/fpipub40003
Author
Phillips, Eric
Date
May 1996
Material Type
Research report
Field
Fibre Supply
, green tree retention, and patch cutting—were replicated three times. The study also included an old
Author
Phillips, Eric
Date
May 1996
Material Type
Research report
Physical Description
42 p.
Sector
Forest Operations
Field
Fibre Supply
Research Area
Forestry
Subject
Trees
Systems
Compaction
Soil
Sites
Site disturbance
Silviculture
Shelterwood
Retention
Residues
Productivity
Partial cutting
Logs
Sample
Growth
Costs
British Columbia
Series Number
Special Report ; SR-000109
Language
English
Abstract
The Mountain Alternative Silvicultural Systems (MASS) study is a multi-disciplinary, multi-agency project initiated both for silvicultural and social reasons. MacMillan Bloedel Limited, the Canadian Forest Service, and FERIC cooperated in the study, with participation by the University of Victoria and the University of British Columbia. Three alternative treatments representing a range of canopy removal levels - uniform shelterwood, green tree retention, and patch cutting - were implemented in the research area, located on the east coast of Vancouver Island. FERIC monitored the productivity and cost of the falling and forwarding operations, and measured site disturbance and coarse woody debris for each harvesting treatment. The results of FERIC's study are presented.
Silvicultural systems
Shelterwood systems
GREEN-TREE RETENTION
Clearcutting
Partial cutting systems
Patch cutting
Excavators
Logging residues
Site disturbance
Soil compaction
Productivity
Costs
OLD-GROWTH FORESTS
MONTANE FORESTS
Coastal British Columbia
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Evaluation of near infrared spectroscopy as a potential quality assurance tool for the wood preservation industry

https://library.fpinnovations.ca/en/permalink/fpipub42475
Author
Stirling, Rod
Date
February 2012
Material Type
Research report
Field
Sustainable Construction
Author
Stirling, Rod
Date
February 2012
Material Type
Research report
Physical Description
17 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Spectroscopy
Retention
Preservatives penetration
Preservatives
Penetration
Measurement
Infrared spectroscopy
Series Number
Future Focus No. TT1.1.07
W-2881
Location
Vancouver, British Columbia
Language
English
Abstract
Wood preservation standards typically specify quality assurance procedures to determine whether wood is adequately treated. As a result there is a need to identify sapwood and heartwood, and measure preservative retention and penetration. For spruce and hem-fir there are no reliable methods to differentiate sapwood and heartwood. For carbon-based preservatives, preservative retention measurement typically requires GC or HPLC analyses; the only methods available to determine penetration involve detecting a surrogate in the formulation rather than the active ingredients. Multivariate models based on near infrared (NIR) spectra have been used to predict a wide range of wood properties over the past 20 years. The present research evaluates the potential use of NIR-based models as quality assurance tools for the wood preservation industry. Models were developed to differentiate hemlock and amabilis fir sapwood and heartwood. Attempts to differentiate spruce sapwood and heartwood were unsuccessful. NIR-based models were also able to differentiate untreated wood from wood treated with DDACarbonate and wood treated with tebuconazole. Models developed to predict DDACarbonate and tebuconazole retention were moderately accurate, but likely not precise enough to replace current quantitative assays. However, the sensitivity to the presence of the actives may be sufficient for estimating preservative penetration. Further work is needed using small probes suitable for scanning increment cores to adapt this technology for industrial use. In addition to conventional NIR, hyperspectral images were obtained to differentiate untreated wood from DDACarbonate- and tebuconazole-treated wood, but accurate calibrations could not be developed.
Preservatives - Penetration - Measurement
Preservatives - Retention - Measurement
Spectroscopy, Infrared
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Helicopter logging with the Bell 214B: retention and clearcut harvesting in the southern interior of British Columbia

https://library.fpinnovations.ca/en/permalink/fpipub40690
Author
Dunham, Michelle T.
Date
January 2005
Material Type
Research report
Field
Fibre Supply
Author
Dunham, Michelle T.
Date
January 2005
Material Type
Research report
Physical Description
24 p
Sector
Forest Operations
Field
Fibre Supply
Research Area
Forestry
Subject
Retention
Productivity
Partial cutting
Logs
Helicopter
Costs
British Columbia
Advantage
Series Number
Advantage ; Vol. 5, No. 38
Language
English
Abstract
The Forest Engineering Research Institute of Canada (FERIC) studied a light-lift helicopter operation near Lillooet, B.C. A Bell 214B was used to harvest variable retention and clearcut units on steep slopes. This report presents productivity and cost information on the helicopter logging operation, and discusses factors affecting the effiiiciency of the operation.
Helicopter logging
Bell 214B
Partial cutting
Retention
Clearcuts
Productivity
Costs
British Columbia
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Helicopter yarding with the S-64E Aircrane: grapple yarding in retention and clearcut prescriptions in the Fraser Valley

https://library.fpinnovations.ca/en/permalink/fpipub40664
Author
Dunham, Michelle T.
Date
April 2004
Material Type
Research report
Field
Fibre Supply
Author
Dunham, Michelle T.
Date
April 2004
Material Type
Research report
Physical Description
20 p
Sector
Forest Operations
Field
Fibre Supply
Research Area
Forestry
Subject
Retention
Productivity
Partial cutting
Logs
Helicopter
Costs
British Columbia
Air
Advantage
Series Number
Advantage ; Vol. 5, No. 13
Language
English
Abstract
The Forest Engineering Research Institute of Canada (FERIC) studied a heavy-lift helicopter logging operation near Mission in the Fraser Valley region of British Columbia. An S-64E Aircrane was used to harvest retention and clearcut units on steep slopes. This report presents productivity and cost information for the helicopter logging operation, and discusses factors affecting the efficiency of the operation.
Helicopter logging
S-64E aircrane
Partial cutting
Retention
Clearcuts
Productivity
Costs
British Columbia
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Silvicultural treatments for ecosystem management in Sayward: cost and productivity of harvesting

https://library.fpinnovations.ca/en/permalink/fpipub5840
Author
Evans, Craig
Phillips, Eric
de Montigny, Louise
Date
December 2003
Edition
40651
Material Type
Research report
Field
Fibre Supply
Author
Evans, Craig
Phillips, Eric
de Montigny, Louise
Date
December 2003
Edition
40651
Material Type
Research report
Physical Description
12 p.
Sector
Forest Operations
Field
Fibre Supply
Research Area
Forestry
Subject
Visual efficiency
Thinning
Systems
Silviculture
Selection
Second growth forests
Second growth
Retention
Productivity
Growth
Costs
British Columbia
Advantage
Series Number
Advantage ; Vol. 4, No. 38
Language
English
Abstract
The Silviculture Treatments for Ecosystem Management in the Sayward (STEMS) research project was developed to test seven silvicultural systems and the concepts of ecosystem management as a means of creating diversity in forest structures. The Forest Engineering Research Institute of Canada (FERIC) reported on the harvesting phase of the first replicate of this project. This report summarizes the harvesting productivities, costs, tree damage, and soil disturbance for each of the treatments.
Silvicultural systems
Ecosystem management
Visual impact
Retention
Commercial thinning
Clearcuts
Patch cutting
Ground selection
Second-growth forests
Productivity
Costs
Coastal British Columbia
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A Study to determine relationship between gauge and assay retention in preservative treated wood

https://library.fpinnovations.ca/en/permalink/fpipub41456
Author
Doyle, Edward E.
Ralph, C.D.
Date
March 1984
Material Type
Research report
Field
Sustainable Construction
Author
Doyle, Edward E.
Ralph, C.D.
Date
March 1984
Material Type
Research report
Physical Description
36 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Retention
Preservatives
Preservation
Penetration
Measurement
Series Number
CFS/DSS project no 13/83-84
Project no.65-57-404
E-166
Location
Ottawa, Ontario
Language
English
Abstract
Preservatives - Retention - Measurement
Preservation - Penetration - Measurement
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Trials of variable-retention harvesting in eastern Canada

https://library.fpinnovations.ca/en/permalink/fpipub40665
Author
Pentassuglia, Nicolas
Meek, Philippe
Date
April 2004
Material Type
Research report
Field
Fibre Supply
Author
Pentassuglia, Nicolas
Meek, Philippe
Date
April 2004
Material Type
Research report
Physical Description
6 p.
Sector
Forest Operations
Field
Fibre Supply
Research Area
Forestry
Subject
Variables
Systems
Shelterwood
Retention
Partial cutting
Harvesting
Advantage
Series Number
Advantage ; Vol. 5, No. 5
Language
English
Abstract
Variable-retention harvesting will likely be increasingly used in eastern Canada because of new legislations regulating harvesting activities. In the fall of 2002, FERIC studied five variants of this harvesting approach, adapted to the forests of eastern Canada, and assessed the stand characteristics retained, the operational considerations, and the direct costs. The additional costs associated with variable retention arise primarily from the volumes of fiber that are left unharvested in the forest and depend on the nature and quantity of the elements retained. Our trials confirmed that variable-retention harvesting is a viable approach in eastern Canada.
Variable retention
Partial Cut
Shelterwood Cut
Harvesting with protection of small merchantable stems
Cut-to-length harvesting systems
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7 records – page 1 of 1.