soil map units where 28a Magia bouldery clay loam is dominant
Soil properties
| Property | Value |
|---|---|
| Geographic distribution | Samoa |
| Landscape position | Soils of the lowlands and foothills - slightly dissected landscapes |
| Soil parent material | from mixed aa and pahoehoe basalt of the Mulifanua Volcanics |
| Slope | Rolling, easy rolling slopes and undulating |
| Surface outcrops | Surface moderately bouldery and very stony. No rock outcrops. |
| Brief soil profile description | - |
| Soil profile texture | 13cm bouldery loam. 10cm very bouldery loam. on basalt lava sheet |
| Minimum effective rooting depth | <25cm |
| Soil pH (acidity) | Slightly acid (pH = pH = 6.3) |
| Salinity | Non saline |
| Soil fertility under natural conditions | High fertility. Base saturation 100%. Exchangeable potassium (K), organic calcium (C) moderate in topsoil. |
| Soil moisture regime | With weak to strong dry season (Udic moisture regime) |
| Susceptibility to drought | Moderate dry season (2-3 months <60mm rainfall). Rainfall 2500mm. |
| Soil drainage | Well drained |
| Susceptibility to waterlogging | Never waterlogs |
| Susceptibility to flooding | Never floods |
