Scoping study of research to underpin a DSS for Water Allocation Planning

Project Partners: SARDI, The University of Adelaide, CSIRO, and University of South Australia

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Status:

Project Overview

This scoping study aimed to identify the research knowledge gaps within ‘Water Allocation Planning and Water Quality Improvement’ Programme’s research projects that would improve the current water allocation planning process. Four major research themes were identified as requiring investment in order to improve water allocation planning in the Mt Lofty Ranges, South Australia. These research themes were:

  • Better understanding of the hydrological processes, in particular rapid assessment of those parts of the landscape where groundwater contributes substantially to stream flow;
  • Development of robust hydro-ecological thresholds based on better understanding of hydro-ecological processes particularly under low flow situations;
  • The importance of land use, topography and other landform attributes on water quality, particularly as it effects ecology in low flow situations; and,
  • Improvements and alignment of the current hydrological models and risk frameworks that are used within the water allocation planning process.

Progress Update and Key Findings

The project reviewed and evaluated components of the WAP framework including the establishment of relationships between hydrology and ecological expression, a process to determine the effectiveness of returning low flows for environmental watering, and the notion of a library of metrics to support future WAPs across the state. It also assessed surface water-groundwater interaction models that may help in the WAP process in SA. Finally it explored opportunities for new areas of research such as hydro-economic modelling (i.e. transparently balancing social, economic and environmental needs for water).

Project Impacts

Research and policy staff within this project reviewed then prioritised research needed to refine a decision support framework for developing water allocation plans (WAPs) in South Australia.

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