Wood properties of 38-year-old Redwood from Mangatu Forest

Authors: D.J. Cown, R.B. McKiney
Publication: New Zealand Journal of Forestry, Volume N.Z.J.For. 2009, Issue N.Z.J.For. 54(2) 2009, pp 25-32, Aug 2009
Publisher: New Zealand Institute of Forestry

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Abstract: Thirteen randomly-selected stems were felled in a 38-year-old stand (Cpt. 11, Mangatu Forest) for an analysis of wood properties. Disc samples were collected from the ends of each 5m log and subjected to measurement of wood density, shrinkage and heartwood content. The results confirmed that mature NZ grown redwood has a high heartwood content (>50%) and low and uniform density (stems averaging 323 kg/m3). Shrinkage was also low and uniform. Between-tree variation was the largest component observed, suggesting that selective breeding may offer real opportunities for wood quality improvement.

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