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Resource: used or used up in processesSoil
Appears in 19 processs and 41 steps. Everything below is linked: open a process to see it in context.
Top processes
- Surface state sets erodibility: aggregates and clods larger than 0.84 mm are non-erodible, so aggregate stability and tillage state set the erodible fraction
- Roughness elements such as plants, residue and stones absorb wind momentum, raising the soil threshold friction velocity by about 1.5-2.5 times at only 5% lateral cover
- Wind friction velocity above the threshold lifts loose particles; the minimum threshold, about 0.2 m/s, occurs for grains near 0.1 mm
- and 3 more in this process
Soil fauna
3 stepsLiving soil system
3 steps- Drought, grazing or tillage lowers vegetation cover and dries the surface soil
- Wind friction speed exceeds a threshold (about 0.2-0.5 m/s for loose bare soil) and sand grains begin to hop
- Sandblasting by saltating grains breaks aggregates and releases silt and clay; flux scales with roughly the cube of friction velocity above threshold
Show 13 more processes
Often found with
Water 17Soil 12Wind 10Rain 7Dust 6Rock 5Plants 5Earthworms 4Runoff 4Soil organic matter 4Ants 3Tillage 3
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