The relatively small Elmhurst Salinity Province is part of the headwaters of the Wimmera catchment and lies on the border of the Avoca catchment on the southwestern slopes of the Pyrenees Range. It has a regional to intermediate scale Groundwater Flow System (GFS) in the alluvial plains and local to intermediate scale GFSs in the fractured Palaeozoic rocks. A number of small salinity discharge sites are scattered within the upland alluvial plains, mainly adjacent to and along drainage lines. The discharge sites are mainly located in poorly drained low-lying areas, which are subject to intermittent flooding.
Little salinity mitigation work has been undertaken although some native revegetation has occurred along creek lines. Farming should aim to increase perennial pastures in adjacent up-slope soils and re-introduce native vegetation areas where possible to reduce recharge during wet periods.
|