Hamilton, MG and Blackburn, DP and McGavin, RL and Bailleres, H and Vega, M and Potts, BM, Factors affecting log traits and green rotary-peeled veneer recovery from temperate eucalypt plantations, Annals of Forest Science, 72, (3) pp. 357-365. ISSN 1286-4560 (2015) [Refereed Article]
Copyright 2014 INRA and Springer-Verlag France
Key message: High levels of percentage green veneer recovery can be obtained from temperate eucalypt plantations. Recovery traits are affected by site and log position in the stem. Of the post-felling log traits studied, out-of-roundness was the best predictor of green recovery.
Context: Eucalyptus globulus and Eucalyptus nitens are widely planted in temperate regions of the globe but few studies of rotary peeling have been documented.
Aims: This study aims to examine differences among sites and log positions in post-felling log traits and green veneer recovery traits and determine the extent to which log traits explain variation in recovery traits.
Methods: Log traits and green rotary-peeled veneer recovery traits from six temperate eucalypt plantations were studied. Selected plantations encompassed different age, site productivity, silvicultural and species classes in south-eastern Australia. Differences in log and recovery traits among sites and between lower and upper logs were examined, as was the extent to which log traits explained variation in recovery traits.
Results: Differences among sites for percentage recovered green veneer were non-significant, despite significant differences for peelable billet volume, roundup loss, residual core diameter and all post-felling log traits: small end diameter, sweep, taper, out-of-roundness, end splitting and dynamic modulus of elasticity (MOEdyn). The lower log exhibited more sweep, taper and out-of-roundness but lower MOEdyn and less recovered green veneer. Out-of-roundness was the best predictor of recovery traits (R 2 = 13–21 %, P < 0.001).
Conclusion: Recovered green veneer was high across all sites and log positions (78 % overall).
|Item Type:||Refereed Article|
|Keywords:||Eucalyptus globulus, Eucalyptus nitens, site effect, log position, log characteristics, rotary-peeled veneer|
|Research Division:||Agricultural and Veterinary Sciences|
|Research Group:||Forestry Sciences|
|Research Field:||Wood Processing|
|Objective Division:||Plant Production and Plant Primary Products|
|Objective Field:||Hardwood Plantations|
|Author:||Hamilton, MG (Dr Matthew Hamilton)|
|Author:||Blackburn, DP (Dr David Blackburn)|
|Author:||Vega, M (Mr Mario Vega Rivero)|
|Author:||Potts, BM (Professor Brad Potts)|
|Year Published:||2015 (online first 2014)|
|Web of Science® Times Cited:||5|
|Deposited By:||Plant Science|
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