The Woorndoo Salinity Province is a medium sized province underlain by a variety of bedrock types that are deeply weathered to a thick regolith and overlain in a few places by marine beach ridges and strandlines. Primary salinity features found in the province are small saline lakes formed in-between the recent marine strandline sediments. Groundwater often feeds these features from local and intermediate Groundwater Flow Systems, but land clearing changed the water balance causing secondary expansion of the primary salinity features and groundwater fed areas of soil waterlogging. Groundwater salinity can be up to 15,000 mg/l and sodic soils reflect the salinity history of low-lying parts of this province.
Management options primarily involve reducing recharge by increasing plant water uptake and by ‘living-with-salt’ around the primary salinity (discharge) features. Protecting the at risk margins of the lakes from soil damage during wetter periods is also particularly important.
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