Progress Report 2007-2008 - Department of Environment and ...
Progress Report 2007-2008 - Department of Environment and ...
Progress Report 2007-2008 - Department of Environment and ...
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Due date Region FA section Milestone <strong>Progress</strong><br />
Ongoing Eden<br />
<strong>2007</strong> 30 April Sthn<br />
3.5<br />
Att. 8<br />
3.5<br />
Att. 6(6e)<br />
Refinement <strong>of</strong> resource availability by improving the<br />
inventory, such as additional plot measurements.<br />
25 STANDSIM was used as the scheduling tool in the Eden RFA.<br />
Refinement <strong>of</strong> resource availability on native forests<br />
by additional inventory plot measurements to improve<br />
volume estimates at a regional level.<br />
In progress<br />
Intensive inventory activities in regrowth forests in Eden continue. This inventory activity has resulted in improved site quality<br />
classification, at the regional level.<br />
Additionally, within the PGP inventory program three existing plots were remeasured in 2005. Another two existing plots are proposed<br />
to be remeasured in late 2006. As part <strong>of</strong> remeasurement, PGPs have been converted to a new plot size. The larger plot size will result<br />
in a better capture <strong>of</strong> variability <strong>and</strong> improve mortality <strong>and</strong> recruitment modelling.<br />
Eden-specific tools were reported in the 2006–<strong>2007</strong> FA report.<br />
In 2002–2003, Forests NSW designed <strong>and</strong> implemented an inventory-plot management system, called REDEN, for modelling the Eden<br />
even-aged regrowth resource. The system is designed to predict individual tree <strong>and</strong> st<strong>and</strong> growth <strong>and</strong> yield for the even-aged regrowth<br />
forests <strong>and</strong> includes biometrics specific to the regrowth forests <strong>of</strong> the south-east <strong>of</strong> the State. The yield tables generated by REDEN<br />
are designed to be used by yield-scheduling tools for estate-level modelling.<br />
The drivers <strong>of</strong> the models in REDEN are st<strong>and</strong> age, measurement <strong>of</strong> site quality (site height), <strong>and</strong> the number <strong>of</strong> mature trees. Local<br />
taper <strong>and</strong> volume functions have also been developed; they allow the input <strong>of</strong> product specifications <strong>and</strong> determination <strong>of</strong> theoretical<br />
product (pulp) volumes by size. The outputs <strong>of</strong> the REDEN system are yield tables for the regrowth forest that predict the piece size<br />
<strong>and</strong> volume available for harvest. These results are then combined with net harvestable area estimates <strong>and</strong> used to schedule thinning<br />
operations by using Spatial Woodstock in much the same way as FRAMES.<br />
Because <strong>of</strong> the organisational shift from Spectrum <strong>and</strong> St<strong>and</strong>Sim 25 to Woodstock for yield-scheduling analysis, the outputs from<br />
REDEN are formatted so they can be incorporated into the Woodstock package.<br />
The initial analysis from REDEN <strong>and</strong> Woodstock focused on short-term timber availability issues, notably the current 20-year planning<br />
horizon. After the preliminary results were refined <strong>and</strong> evaluated, the system was then exp<strong>and</strong>ed to incorporate longer-term modelling<br />
<strong>of</strong> the resource, bringing it in line with other FRAMES models to consider a full 200-year strategic planning horizon. This work is still in<br />
progress, the current focus is on sensitivity analysis <strong>of</strong> the outputs.<br />
After REDEN was developed, the MARVL inventory system, licensed to Forests NSW by New Zeal<strong>and</strong> Forest Research, was<br />
upgraded <strong>and</strong> given the new name Atlas Cruiser. Although Forests NSW has converted the inventory data from the MARVL format for<br />
North <strong>and</strong> South Coasts, the complex nature <strong>of</strong> the Cruiser data model, the long modelling horizons <strong>and</strong> the nature <strong>of</strong> the inventory<br />
formats used for the Eden regrowth resource have delayed using this data for EDEN. Forests NSW will continue to review the utility <strong>of</strong><br />
these <strong>and</strong> other tools for informing future management decisions.<br />
In progress<br />
Some planning for additional inventory plots began in the Tumut sub-region, but actual establishment <strong>of</strong> new inventory plots in areas<br />
harvested around Batemans Bay was completed in late 2006. Forty-one new plots were established.<br />
A FRAMES strategic inventory plot update program has been completed in accordance with Forests NSW Forest Inventory Policy.<br />
Additional plots have been measured to provide an even intensity (1 plot in 200 ha) <strong>of</strong> plots across the estate.<br />
NSW FOREST AGREEMENTS AND INTEGRATED FORESTRY OPERATIONS APPROVALS 133