Gully Density
Benchmark Value
Scoring Curve
The scoring engine could not generate a curve for this benchmark context. The primary form is Point, but the benchmark data may be missing required fields (e.g., optimal range bounds for an OptimalRange benchmark). This is typically a data quality issue in the benchmark pipeline.
Contributing Benchmarks
Evidence & Context
For a stable, high-health conservation landscape, the ideal density of active gullies features indicating ongoing, accelerated erosion is approaching 0 m/ha.
Active gully density, measured as the length of active gullies per hectare (m/ha), indicating ongoing accelerated erosion.
Active gully density is the length of active gullies per hectare, where active gullies indicate ongoing soil erosion. A value near zero represents a stable conservation landscape with minimal soil loss.
The benchmark is based on geomorphological first principles and proxy data from soil erosion rates, indicating that any active gully presence is detrimental and the ideal stable condition is near zero.
Sources (4)
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View SourceSupporting Sources (27)
Additional references from the underlying research that informed this benchmark.
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View SourceErosion and deposition vulnerability of small (<5000 km2) tropical islands - PubMed Central, accessed August 3, 2025,
View Source
Erosion phenomena on Round Island, Mauritius Tamsyn Anne Bean MASTER OF SCIENCE (Environmental Management) Faculty of Natural an - University of Pretoria, accessed August 3, 2025
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View SourceNorfolk Island Environmental Assessment Executive Summary, accessed August 3, 2025
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Alluvial Gully Erosion Rates and Processes Across the Mitchell River Fluvial Megafan in Northern Queensland, Australia - Resilient Landscapes Hub
View SourceLessons for Gully Management | NESP TWQ
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Agricultural Audit and Land Use Capability Assessment for Norfolk Island | Policy Commons
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Conservation | Norfolk Island National Park | Parks Australia
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The impact of deforestation - The Tropical Rainforest
View SourceStable gullies provide a suitable habitat for functional insects and ..., accessed August 3, 2025
View Source(PDF) Influence of environmental conditions and some soil chemical properties on the carbon and nitrogen contents of some tropical Australian rainforest soils - ResearchGate, accessed August 2, 2025
View SourceThe influence of rock resistance on coastal morphology around Lord Howe Island, Southwest Pacific | Request PDF - ResearchGate, accessed August 3, 2025
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View SourceTopographic thresholds for gully head formation in badlands - ResearchGate
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