Gully Density
Benchmark Value
Scoring Curve
This curve shows how a field measurement for this indicator would score across all available benchmark forms in this context. The scoring engine uses 4 benchmarks together — the Point form drives the primary score, while 3 guard(s) constrain the result.
Contributing Benchmarks
Evidence & Context
Based on this logical conclusion, the reference value for Gully Density in a best-practice urban system within Australia's Arid Inland Floodplains & Ephemeral River Systems is 0 m/ha.
Gully Density is defined as the length of active gullies per unit area, typically expressed in metres per hectare (m/ha).
This benchmark represents the ideal condition of zero active gullies in urban areas of Australia's Arid Inland Floodplains & Ephemeral River Systems, reflecting best-practice urban design to prevent erosion.
The benchmark of 0 m/ha represents the best available condition for a new or redeveloped urban area adhering to modern best practices such as Water-Sensitive Urban Design (WSUD) and comprehensive Erosion and Sediment Control (ESC). The rationale is that the core principle of these practices is the prevention of concentrated, erosive stormwater flows, which are the primary driver of gully formation. Therefore, the presence of any active gully is evidence of a failure in design, construction, or maintenance, not an acceptable feature of a high-health system.
Sources (2)
(PDF) Gully erosion prediction across a large region ... - ResearchGate, accessed July 21, 2025,
View SourceGully mapping and drivers in the grazing lands of the Burdekin ..., accessed July 21, 2025,
View SourceSupporting Sources (1)
Additional references from the underlying research that informed this benchmark.
Alluvial Gully Erosion Rates and Processes Across the Mitchell ..., accessed July 21, 2025,
View Source