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Tree diameter, height and stocking in even-aged forests
Annals of Forest Science
  • Jerome K Vanclay, Southern Cross University
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Empirical observations suggest that in pure even-aged forests, the mean diameter of forest trees (D, diameter at breast height, 1.3 m above ground) tends to remain a constant proportion of stand height (H, average height of the largest trees in a stand) divided by the logarithm of stand density (N, number of trees per hectare): D = β( H−1.3) / ln ( N). Thinning causes a relatively small and temporary change in the slope β, the magnitude and duration of which depends on the nature of the thinning. This relationship may provide a robust predictor of growth in situations where scarce data and resources preclude more sophisticated modelling approaches.
Citation Information
Vanclay, JK 2009, 'Tree diameter, height and stocking in even-aged forests', Annals of Forest Science, vol. 66, no. 7, pp. 702.

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