soil map units where 75 Maugamoa bouldery peaty silt loam is dominant
Soil properties
| Property | Value |
|---|---|
| Geographic distribution | Savaii |
| Landscape position | Soils of the uplands - very slightly dissected landscapes |
| Soil parent material | from scoria and pahoehoe basalt of the Puapua Volcanics |
| Slope | Rolling to strongly rolling slopes |
| Surface outcrops | Surface usually free of boulders but patches of very bouldery ground. No rock outcrops. |
| Brief soil profile description | - |
| Soil profile texture | 15cm bouldery peaty silt loam. 30cm bouldery silty clay loam. on weathering boulders |
| Minimum effective rooting depth | <75cm |
| Soil pH (acidity) | Moderately acid (pH = 5.3) |
| Salinity | Non saline |
| Soil fertility under natural conditions | Low fertility. Base saturation 6% in topsoil, nil below. High organic calcium (C) and moderate exchangeable potassium (K) values in topsoil. |
| Soil moisture regime | Without dry season (Perudic moisture regime) |
| Susceptibility to drought | No dry season. Rainfall >5000mm. |
| Soil drainage | Well drained |
| Susceptibility to waterlogging | Never waterlogs |
| Susceptibility to flooding | Never floods |
