Prediction of the Heartwood Content of Pine Logs

Authors

  • Petri P. Kärenlampi
  • Mika Riekkinen

Keywords:

Age, size, shape, mass density, water content, sapwood content, predictive model

Abstract

The heartwood content of pine is discussed in terms of age, size, and shape of the log. The physical properties of heartwood and sapwood were analyzed. An exact formula was developed for the volume proportion of heartwood as a function of mass density of the log. A formula for the area proportion of heartwood within a cross section at the upper end of a log as a function of the volume proportion of heartwood within the log is given. The two formulae are combined to a predictive model of the heartwood content within a pine log.

References

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Published

2007-06-05

Issue

Number 1 / January 2003

Section

Research Contributions

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