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Salinity Province 133, Wild Duck Creek

Thumbnail image showing the location of the Wild Duck Creek Salinity Province in VictoriaThe small Wild Duck Creek Salinity Province is located on the eastern edge of the North Central CMA region where it drains to the north into Lake Eppalock, providing significant salt loads to the lake. Dryland salinity is expressed as drainage line and ‘break-of-slope’ occurrences below the metamorphic aureole of the McHaig Ranges where it is also affected by structural geology (faulting). This province has a complex assembly of geology types with a granite pluton in the south extending to meta-sedimentary, both marine and glacial deposits in the north. Groundwater flow is via local to intermediate scale Groundwater Flow Systems in the fractured and weathered, Palaeozoic rock system of the aureole, which is considered a high recharge zone.

No significant attempt has been made to mitigate the salinity risk in the province although, due to hobby farm based landuse change, native vegetation has increased in the past decade.

Province Attributes

Catchment Management Region:NORTH CENTRAL
Priority Status:High
Province Area:32,160 ha
Recorded Soil Salinity Area 1:302 ha
Dominant Surface Geology Type:Sedimentary
Influence of Geological Structure on Salinity Occurrence/s:Definite
Relevant Geomorphological Mapping Units (GMUs):2.1.X
Predominant Groundwater Flow Systems (GFSs):Local/Intermediate
Relevant Irrigation Areas:N/A

Wild Duck Creek Salinity Province Map

A detailed map showing Wild Duck Creek Salinity Province

Links to further reading and material related to the North Central Salinity Province
For further information relating to groundwater levels and salinities in this Province please see: Visualising Victoria's Groundwater (VVG)

1 Please Note: The ‘Recorded Soil Salinity Area’ indicated in the Salinity Province Attribute Table, comprises the total geographic area that has been mapped as having, or showing symptoms of, dryland soil salinity at some time (past or present). As dryland salinity occurrence in the Victorian landscape exhibits many different levels of severity and can change due to climate, landuse and vegetation, previously mapped areas may no longer be showing symptoms. In addition, as not all parts of the State have been mapped, or mapped in the same way, the mapping may not have captured some occurrences.

The soil salinity mapping used to calculate this ‘area’ does not cover irrigation regions. In irrigation regions, depth to watertable and watertable salinity mapping has been used to convey the threat of high watertables on soil waterlogging and/or soil salinisation and these areas are not included in this ‘area‘ calculation.

Please contact the Department, your Catchment Management Authority or your rural water provider for more information about salinity in your location.
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