50 pages
Published: 12 Feb 2009
Author(s): Peacock, Ross J
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This JVAP report details an approach used to identify biodiversity surrogates and develop a metric which would permit forest managers to communicate how their forest is being managed with respect to biodiversity and structural characteristics. It builds upon existing site based systems for measuring vegetation condition and quality, and incorporates additional variables such as measures of stand structural diversity to the calculation of the metric. The approach is developed using a chronosequence of silvicultural regeneration in southern Tasmania where survey site selection was carefully implemented using sites originally surveyed in 1992 and re-surveyed in 2008. Based on the data presented from southern Tasmania, several indices of stand structural diversity are recommended to be incorporated into the existing site condition scoring systems for Habitat Hectares and Biometric.
The report is relevant to a range of groups interested in the development of systems for reporting forest condition against defined standards or threshold values. For researchers new approaches are trialed for measuring stand structural diversity; private and public forest land managers will be able to consider the merits of the proposed biodiversity surrogates and metrics for their own monitoring requirements; and policy officers developing forest monitoring and sustainability reporting systems can similarly assess the advantages of the site assessment schemes for higher level reporting at a landscape or catchment scale.
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