Growth response following variable espacement of 28-year-old alpine ash regeneration in New South Wales [Eucalyptus delegatensis R.T. Bak.]
1990
Horne, R. | Robinson, G. (New South Wales Forestry Commission, Beecroft (Australia))
No significant correlation was found between basal area growth response and increased spacing for 4 treatments that ranged from 3.7 to 7.3 m. Rapid natural stocking attrition occurred in both thinned and unthinned stands during the 31 post-thinning years of measurement. As a consequence of the propensity to self-thin, little additional stand growth was gained from the thinning treatments. The overall result of stand spacing on the largest 150 trees per ha was a widening of the stand diameter distribution and a small overall gain in the merchantable volume. For sites of higher quality, the basal area response was larger and predominantly accrued to the largest 50 trees per ha.
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