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By S. Furby


This report summarises the Victorian component of a project funded by the Land and Water Resources Research and Development Corporation (LWRRDC) on “Mapping Dryland Salinity ” (CDM 2). The aims of the overall study are: • to map the extent and severity of dryland salinity in three catchments using multi-temporal Landsat TM data; and • to provide guidelines to support the use of the approach nationally. This report describes the findings for the Loddon and Campaspe catchments in Victoria. The methodology used has been extended to include digital elevation data as well as Landsat TM imagery in the processing, since information derived from elevation data has been found to improve salinity mapping accuracy in Western Australia. This study has shown that using Landsat TM data from two separate seasons (1992 and 1995) cannot adequately map salinity in these catchments. Areas of low productivity that are being mapped include salt-affected land as well as areas of poor pasture, waterlogged land and rocky outcrops. Approximately 30 % of the non-saline land is being mapped as salt-affected

Year: 2009
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