soil map units where 73 Mataoleafi gravelly sand 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 Aopopo Volcanics |
| Slope | Easy rolling and rolling slopes |
| Surface outcrops | Very rugged surface, a mass of huge lava blocks. |
| Brief soil profile description | - |
| Soil profile texture | 10cm peaty gravelly sand. 15cm coarse gravel. on aa and scoria |
| Minimum effective rooting depth | <30cm |
| Soil pH (acidity) | Slightly acid (pH = 6.2) |
| Salinity | Non saline |
| Soil fertility under natural conditions | Moderate to low fertility. Minimal weathering. |
| Soil moisture regime | Without dry season (Perudic moisture regime) |
| Susceptibility to drought | No dry season. Rainfall 4375->6000mm. |
| Soil drainage | Well drained |
| Susceptibility to waterlogging | Never waterlogs |
| Susceptibility to flooding | Never floods |
