soil map units where 36 Afuiva bouldery silt loam is dominant
Soil properties
| Property | Value |
|---|---|
| Geographic distribution | Samoa |
| Landscape position | Soils of the lowlands and foothills - very slightly dissected landscapes |
| Soil parent material | from mainly pahoehoe basalt of the Puapua Volcanics |
| Slope | Rolling to strongly rolling slopes |
| Surface outcrops | Surface very rocky. No rock outcrops. |
| Brief soil profile description | - |
| Soil profile texture | 18cm bouldery silty clay loam. 18cm stony silty clay loam. on vesicular lava |
| Minimum effective rooting depth | <40cm |
| Soil pH (acidity) | Slightly acid (pH = 6.0) |
| Salinity | Non saline |
| Soil fertility under natural conditions | Fertile but plant food in organic fraction of topsoil. |
| Soil moisture regime | Without dry season (Perudic moisture regime) |
| Susceptibility to drought | Very weak dry season (1 month <60mm rainfall). Rainfall 3250-4375mm. |
| Soil drainage | Well drained |
| Susceptibility to waterlogging | Never waterlogs |
| Susceptibility to flooding | Never floods |
