|
|
|
Documenting pruning history
Once wood has grown over the branch stubs
it is impossible to determine the size of the knotty core
without cutting into the log. Log buyers might not accept
farmers’ assurances that the trees were all of good form
and pruned on time, every time. Australian Forest Growers
provides a Pruned Stand Certification—see Additional
information—that is an ideal method for documenting pruning
history for those with a relatively large, uniformly managed
stand.
Other growers should document all aspects of their management
in a tree diary and photograph the stand immediately after
each pruning and thinning operation as supporting evidence.
By establishing a number of sample measurement plots in their
plantations growers can record important data about each pruning
operation. Measurements should include tree diameters at breast
height, pruned height, largest diameter over stubs and tree
form.
Because of insect attack, the spread of decay, and other damaging
factors, there will always be uncertainty about the wood quality
of standing trees. One option is to harvest a sample of trees
to reassure the buyer. Alternatively, growers could be paid
on the graded output—over the saw. This would help ensure
that neither the grower nor the processor carried the financial
risk associated with the uncertainty.
Back to top
 |
|
|
|
