Victorian Wetland Inventory (Current)

Brief description

Polygons showing the extent and types of wetlands in Victoria. The 2025 Victorian Wetland Inventory (Current) has undergone a significant revision that increases the comprehensiveness of the state's geospatial wetland inventory. Excluding dams and storages < 8ha (mostly farm dams), the number of mapped wetland polygons has approximately doubled to 64,132, adding approx. 317,000 ha additional wetland area. With the inclusion of the many small dams/storages the inventory now contains 427,540 polygons (1,101,368 ha). The revision builds on the previous inventory by importing additional wetland boundaries from other state sources including VicMAP Hydro, regional mapping by Catchment Management Authorities, Melbourne Water, saltmarsh and estuarine vegetation mapping and mapping of dams and storages. These sources were also used to update some existing inventory boundaries where the alternative was considered a more accurate representation of the wetland extent. Attributes used by the Victorian Wetland Classification Framework including system type, salinity regime, water regime, water source, dominant vegetation were populated (with assumed values where necessary) to permit all wetlands to be classified to their wetland type. Confidence scores were added reflecting the strength of evidence (low, medium, high, certain) for each attribute. Fields were added to improve traceability of wetland mapping to the various data sources.