Catchment to regional scale indicators of sustainability

Ecologically sustainable development requires an integrated approach to environmental integrity, social equity and economic performance. Development of sustainability strategies and empowerment of communities to achieve sustainability will only be effective if progress is monitored. This project provides an opportunity to work within a regional partnership to develop indicators for measuring progress toward sustainability in the south west region of Victoria, Australia. As sustainability is contextual, local organizations have been involved in the identification of key regional values (social, environmental, economic and institutional) and in selecting indicators that can be used to assess to what extent these values are being protected, depleted or enhanced. These indicators are to be used as the basis for exploring relationships between biophysical and socio-economic indicators, to determine what can be deduced from these relationships about sustainability and whether these relationships hold at different spatial scales (catchment, regional and sub-catchment). A rigorous and systematic analysis of indicators and the relationships between them will assist in developing a tool to facilitate decision making for regional sustainability.

An assessment tool for sub-catchment to catchment scale indicators of sustainability - a case study in south west Victoria, Australia

The research reported in this paper represents an attempt to produce a practical, indicator-based sustainability assessment tool incorporating all these elements is based on relationships between indicators determined considering spatial influences. Through the use of an existing sustainability indicator set and data currently available, relationships will be determined using Arcview Geographic Information Systems (GIS), correlation analysis and Principal Component Analysis (PCA). Indicator interactions will be identified at two spatial scales and compared to determine impacts of changing spatial scale. Further PCA and multiple regression analyses will then be used to reduce the complexity of the indicator set. These findings will be incorporated into a practical indicator-based assessment tool through the adoption of the Analytic Hierarchy Process (AHP) combined with GIS techniques that will then be validated. Once validated the tool can be used to aid in guiding planning and decision-making regarding sustainable development in the Glenelg Hopkins catchment, Victoria; while also moving towards producing a standard set of procedures for assessing sustainability.