Forestry Commission logo

Commissioned Reports - Properties


Date: 2007
Title: A method to describe the 3 dimensional branching structure of Sitka spruce
Authors: Mohamed A. K. Omar
Full Report: Edinburgh University MSc Thesis

Summary
This thesis discusses a model for computing the three-dimensional crown architecture of Sitka spruce. The method, called 3-D SITKA, is based on adopting the approach of a previous model developed in 2003. 


Date: 2006
Title: Bridging the Gap - Forestry Commission Wales (236355)
Authors: Report commissioned from BRE
Full Report: Awaiting electronic version


Date: 2004
Title: Processing Potential of Lodgepole Pine
Authors: Shaun Mochan & Jason Hubert
Full Report: PDF


Date: 2002
Title: Stem Straightness Survey in Sitka spruce Wales
Authors: Shaun Mochan & Jason Hubert
Full Report: PDF


Date: 2000
Title: Stem Straightness Survey in Sitka spruce Argyll, Grampian, Highland and N.E. England
Authors: Shaun Mochan & Jason Hubert
Full Report: PDF


Date: 2000
Title: Stem Straightness Survey in Sitka spruce South Scotland
Authors: Graham Stirling et al
Full Report: PDF


Date: 1999
Title: Review of the density attributed to British grown Sitka spruce
Authors: Report commissioned from BRE
Full Report: Awaiting electronic version

Summary
At the request of the UK sawmilling industry BRE carried out a review of the density a UK grown Sitka spruce. The request arose out of concerns that the mean value in Appendix A of BS 5268 understated the value for mean density (400kg/m3). Evidence within the industry was that density was increasing and there was a wish for this to be reflected in BS 5268.

Several sample of Sitka spruce were collected from major production sites, including sites that had come in to production since the last major investigation and hence never been included in sample populations previously, such as Kielder forest.

The density was calculated on whole pieces rather than small section and the results corrected for moisture content. The outcome was that an increase to the mean density was recorded and the value in Appendix A of BS 5268 was amended inline with the findings, an improvement from 400kgm3 to 450kg/m3.