- [Mark] This is Mark Isselhardt, Maple Specialist
with the University of Vermont Extension,
and this is another Vermont Maple Minute.
A recent survey by UVM Extension
of licensed foresters working with Vermont landowners asked
about approaches to sugarbush management.
There are two broad categories
that most forestry prescriptions fall into,
even and uneven age management.
Even age management results in 10%
or less of the standing trees being retained post-harvest.
Uneven age prescriptions result in 70%
or more of the standing trees being retained.
Over time, a forested stand under even age management,
all trees will fall into one or possibly two age classes.
Whereas, in uneven age management stands will have trees
of many age classes and sizes.
90% of foresters describe their prescriptions
in sugarbushes as fitting the definition
of uneven age management
and being either single tree selection or crop tree release.
When asked how the interval between harvests
in sugarbushes compared to stands managed
for other forest products,
50% of foresters said it was longer.
A little over 40% said no difference,
whereas just 5% said the interval was shorter.
This is Mark Isselhardt, Maple Specialist
with the University of Vermont Extension.
This has been another Vermont Maple Minute.