soil map units where 53S Folu steepland soils is dominant
Soil properties
| Property | Value |
|---|---|
| Geographic distribution | Savaii |
| Landscape position | Soils of the lowlands and foothills - moderately dissected landscapes |
| Soil parent material | from lithivitric tuffs and ash of the Vini Volcanics |
| Slope | Steep to moderately steep slopes |
| Surface outcrops | Surface somewhat rocky. Outcrops of lithic vitric tuff common. |
| Brief soil profile description | - |
| Soil profile texture | 5cm gritty clay. 23cm stony and gravelly clay. 28cm loamy fine gravel. on rubbly, gravelly and stony material |
| Minimum effective rooting depth | <70cm |
| Soil pH (acidity) | Slightly acid (pH = 6.1) |
| Salinity | Non saline |
| Soil fertility under natural conditions | Fertile. Base saturation 100% both topsoil and subsoil. High exchangeable potassium (K). Moderate organic calcium (C) and available phosphorus (P). |
| Soil moisture regime | Without dry season (Perudic moisture regime) |
| Susceptibility to drought | Weak to very weak dry season. Rainfall 2750mm. |
| Soil drainage | Well drained |
| Susceptibility to waterlogging | Never waterlogs |
| Susceptibility to flooding | Never floods |
