soil map units where 84V Lanuto'o steepland soils, very steep phase is dominant
Soil properties
| Property | Value |
|---|---|
| Geographic distribution | Upolo |
| Landscape position | Soils of the uplands - moderately dissected landscapes |
| Soil parent material | from scoria basalt of the Salani Volcanics |
| Slope | Very steep slopes |
| Surface outcrops | Surface usually free of boulders. May have stones and gravel. No rock outcrops. |
| Brief soil profile description | - |
| Soil profile texture | 15cm gravelly silty clay loam. 40cm loamy gravel. on weathering scoria |
| Minimum effective rooting depth | >75cm |
| Soil pH (acidity) | Strongly acid (pH = 5.2) |
| Salinity | Non saline |
| Soil fertility under natural conditions | Very low fertility. Base saturation <6%. Base saturation, organic carbon (C) and exchangeable potassium (K) low. |
| Soil moisture regime | Without dry season (Perudic moisture regime) |
| Susceptibility to drought | No dry season. Rainfall 4375-5000mm. |
| Soil drainage | Well drained |
| Susceptibility to waterlogging | Never waterlogs |
| Susceptibility to flooding | Never floods |
