soil map units where 55 Olomauga stony silty clay is dominant
Soil properties
| Property | Value |
|---|---|
| Geographic distribution | Samoa |
| Landscape position | Soils of the lowlands and foothills - moderately dissected landscapes |
| Soil parent material | from scoria aa of the Mulifanua and Salani Volcanics |
| Slope | Moderately rolling to rolling slopes |
| Surface outcrops | Surface usually bouldery. No rock outcrops. |
| Brief soil profile description | - |
| Soil profile texture | 10cm gritty clay. 25cm stony and gravelly loam. 38cm loamy gravel with boulders. on boulders of weathering scoria |
| Minimum effective rooting depth | <75cm |
| Soil pH (acidity) | Slightly acid (pH = 6.1) |
| Salinity | Non saline |
| Soil fertility under natural conditions | Moderate fertility |
| Soil moisture regime | Without dry season (Perudic moisture regime) |
| Susceptibility to drought | Very weak dry season (<1 month <100mm rainfall). Rainfall 2750-3500mm. |
| Soil drainage | Well drained |
| Susceptibility to waterlogging | Never waterlogs |
| Susceptibility to flooding | Never floods |
