Nicholas Davies edited Method.tex  about 8 years ago

Commit id: cf5470d0a32670d8b3e035edf17b8851c1edd0d6

deletions | additions      

       

When harvested each sample was processed for growth strain, volumetric shrinkage, stem diameter, basic density and dry acoustic velocity. Growth strain was measured using a modified version of --kens refs-- whereby only the large end is free to distort (the small end is not cut free from the upper stem and the opening at the large end is measured), substantually reducing measurment time. Bark thickness and stem diameter were measured using digital calipers. Basic density was measured using the displacment method and acoustic velocity via wood spec (--some ref to standard--).   Analysis was conducted in R (--ref--) and JAGS (--ref--), utilizing a bayesian approach to estimate the heritability of growth strain. The effect of coppicing is included as a fixed effect, while trial, half sibling family and the indervidual trees are included as random effects. While physically Physically  all specimens were grown on the same site, they were grown during different time periods and for different rotation lengths, and hence are included as the random effect, trial.