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Review of Projected Timber Yields for the NSW North Coast

By Jerome K Vanclay

Abstract

Analyses with new data reveal that the North Coast region can sustain a timber harvest of up to 220,000 m 3 /year in the medium term. This level of harvesting can be sustained for about 20 years, but will need to be supplemented with plantations in the longer term. This estimate of 220,000 m 3 /year is less than the an earlier estimate of 269,000 m 3 /year prepared during the Regional Forest Agreement (RFA) process in 1999. Several factors contribute to this reduction. The principal reason is the more realistic modelling of tree harvesting in the vicinity of stream buffers ("buffers on buffers"), but other factors include other reductions in net harvest area, more realistic log specifications, and more realistic simulation of silvicultural practices for estimating log volumes. Suggestions are given for further improvement and on-going monitoring of these estimates. 1

Year: 2002
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