Victorian Wetland Inventory with 427,540 Polygons and Classification Attributes

The 2025 Victorian Wetland Inventory (Current) is a significant revision of the state's geospatial wetland data, containing 427,540 polygons covering 1,101,368 hectares. It was produced by the Department of Energy, Environment and Climate Action, integrating boundaries from multiple state sources including VicMAP Hydro and regional catchment authorities. The inventory classifies wetlands using attributes like system type, salinity regime, and dominant vegetation, and includes confidence scores for each attribute.

Use Cases

• Conservation planning based on wetland system type and extent.
• Hydrological modeling based on water regime and water source attributes.
• Biodiversity assessment based on dominant vegetation and salinity regime classifications.
• Land-use change analysis based on traceable wetland mapping from multiple data sources.

Strengths

• Contains 427,540 wetland polygons, approximately double the previous inventory's count for natural wetlands.
• Covers a total area of 1,101,368 hectares, adding approximately 317,000 hectares of newly mapped wetland area.
• Includes confidence scores (low, medium, high, certain) for each classification attribute, indicating data reliability.
• Integrates and traces boundaries from multiple authoritative sources, including VicMAP Hydro and regional catchment mapping.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment for specific analytical needs.

Provenance

Source

Department of Energy, Environment and Climate Action (Victoria, Australia).

Collection Method

Revision built by importing and updating wetland boundaries from VicMAP Hydro, regional Catchment Management Authorities, Melbourne Water, and other state mapping sources.

Time Range

Current as of the 2025 inventory revision.

Freshness

Last updated 2026-04-09 00:41:18.988155; freshness should be verified.

Geography

Victoria, Australia.