soil map units where 74 Mu gravel is dominant
Soil properties
| Property | Value |
|---|---|
| Geographic distribution | Savaii |
| Landscape position | Soils of the uplands - very slightly dissected landscapes |
| Soil parent material | from mainly pahoehoe basalt of the Aopo Volcanics |
| Slope | Easy rolling slopes |
| Surface outcrops | Surface rugged |
| Brief soil profile description | - |
| Soil profile texture | 8cm fibrous loamy peat. 8cm peaty gravel with vesicular lava boulders. on very large boulders of vesicular lava |
| Minimum effective rooting depth | <25cm |
| Soil pH (acidity) | Moderately acid (pH = 5.8) |
| Salinity | Non saline |
| Soil fertility under natural conditions | Low fertility |
| 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 |
