Cyanobacterial Crust Impacts on Soil Erosion from Australian Laboratory Experiments

Laboratory experiment data from project NE/K011464/1 on cyanobacterial crusts and landscape stability. Soils from two sites in eastern Australia were treated to grow crusts for 5, 30, or 60 days, then subjected to simulated rainfall and wind tunnel tests at velocities from 5 to 12 m s-1. Variables measured include spectral reflectance, surface roughness, chlorophyll content, and particle-size analysis of eroded material.

Use Cases

• Modeling wind erosion thresholds based on cyanobacterial crust age and rainfall treatment.
• Analyzing the relationship between soil surface roughness and splash erosion from rainfall simulation.
• Studying the protective effect of extracellular polysaccharide content against particle detachment.
• Correlating spectral reflectance and fluorescence measurements with chlorophyll content in soil crusts.

Strengths

• Experimental design includes three replicates for each rainfall treatment.
• Multiple controlled variables: soil type (sandy loam and loamy fine sand), crust growth periods (5, ~30, ~60 days), and sequential wind velocities (5, 7, 8.5, 10, 12 m s-1).
• Detailed methodology is published in referenced papers (Strong et al., 2016; Bullard et al., 2018, 2019).

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data may reflect geographic bias inherent to the two specific sites in eastern Australia.

Provenance

Source

British Geological Survey (BGS)

Collection Method

Data from controlled laboratory experiments on soil trays, involving cyanobacterial crust growth, rainfall simulation, and wind tunnel testing.

Time Range

Experiments conducted during NERC grant NE/K011464/1; specific dates not provided.

Freshness

Last updated 2026-04 09 08:42:16.462972; freshness should be verified.

Geography

Soils collected from two sites in eastern Australia; experiments conducted at Griffith University, Queensland.