An Evaluation Framework for Dryland Salinity
Jane CoramA, Phil DysonB and Ray EvansC
A Bureau of Rural Sciences, Canberra
B Phil Dyson and Associates; C Salient Solutions Pty Ltd.
May 2001
The dryland salinity evaluation framework provides guidelines for mapping, monitoring and modeling of key biophysical attributes which include groundwater levels and salinity, surface water salinity concentrations and salt loads, the extent of land salinisation, land cover and land use, contextual data and alternative attributes.
The guidelines are designed to give direction on how to:
- Define the extent, severity and impacts of dryland salinity;
- Predict the likely future extent, severity and impact;
- Refine understanding of the processes causing dryland salinity;
- Choose the most appropriate management options for delivering the changes
to catchment water balances, and the likely time frames over which these might
be achieved;
- Measure changes in extent, severity and impacts to determine the effectiveness of previous management activities.
The groundwater flow system classification is used as the technical framework to assist in the identification of appropriate evaluation activities. This hydrogeological framework groups catchments of similar landscape and groundwater processes contributing to salinity and where similar management options apply. Evaluation systems should be designed to assess a range of physical processes, using the key biophysical attributes, according to an understanding of the scale of the groundwater flow system. The key attributes have been chosen for their ability to provide unambiguous information, and because they represent scientifically credible and cost effective means of doing so.
View or download the technical report:
An Evaluation Framework for Dryland Salinity in.pdf format (732 KB)
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