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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

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