Victoria Tree Density Polygons Derived from 20cm Raster Imagery

A 2026-04-09 update from the Department of Transport and Planning provides a vector dataset representing tree cover density across Victoria. The data was created by generalizing a 20cm resolution raster dataset to 2m pixels and applying clustering rules to classify density into Dense, Medium, and Sparse categories. The original high-resolution raster is maintained separately as the Vicmap Vegetation Tree Extent dataset.

Use Cases

• Assess regional canopy cover for environmental reporting based on the Dense, Medium, and Sparse density classes.
• Model habitat connectivity or urban heat island effects using the generalized vector representation of tree extent.
• Integrate simplified tree cover data into broader land-use planning maps based on the derived polygon format.
• Compare generalized density classifications with the original high-resolution raster data for change detection studies.

Strengths

• Derived from a high-resolution 20cm raster source dataset.
• Provides a simplified vector representation with three distinct density classes (Dense, Medium, Sparse).
• Available in multiple geospatial formats including SHP, GDB, and WFS.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and spatial extent are unknown, which may limit suitability assessment.
• The dataset is a generalized product; the original 20cm raster is required for fine-detail analysis.

Provenance

Source

Department of Transport and Planning

Collection Method

Generalized from the Vicmap Vegetation Tree Extent 20cm raster, clustered into density classes, and converted to vector.

Freshness

Last updated 2026-04-09 01:23:15.764284.

Geography

Victoria, Australia