The Lexton Salinity Province is a small province of less than 10,000 ha that makes up part of the headwaters of the Loddon River catchment. Approximately 2% of the Province is salt effected land, which contributes a high salt load to the river. The province features local to intermediate scale Groundwater Flow Systems in weathered, fractured Palaeozoic rocks (including granite), which dominate the landscape with some rocky ridges extending to the upland alluvial plains. Some salinity is expressed as ‘break-of-slope’, but most is mapped along drainage lines, many of which are deeply eroded.
Extensive tree plantation farming was undertaken for salinity control adjacent to the many discharge sites, some of which has been harvested in recent years. This Province is one of the most 'typical' areas for dryland salinity in the state and has therefore had a number of extensive studies into the causes, landscape distribution and management options for dryland salinity completed within it. Bore monitoring has been ongoing since the 1980s.
A number of further references to salinity in this province can be found elsewhere within the VRO Pages.
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