soil map units where 302B Paptoa is dominant
Soil properties
| Property | Value |
|---|---|
| Geographic distribution | Rotuma |
| Landscape position | Flat and easy rolling land |
| Soil parent material | Basaltic ash over basaltic tuff |
| Slope | Flat to undulating (0-7°) |
| Surface outcrops | No surface rock outcrops, few surface stones or boulders. |
| Brief soil profile description | - |
| Soil profile texture | 0-47cm very friable fine sandy loam. 47-78cm friable fine sandy loam. 78-95cm firm coarse sand. On weathered basaltic tuff. |
| Minimum effective rooting depth | 75-100cm |
| Soil pH (acidity) | Slightly acid in A horizon with near neutral subsoil. |
| Salinity | Non saline. |
| Soil fertility under natural conditions | Severe deficiency of Nitrogen (N) and Phosphorus (P), slight deficiencies of Potassium (K), Sulphus (S) and trace elements. |
| Soil moisture regime | udic/perudic |
| Susceptibility to drought | In normal years soil moisture deficits are never experienced. |
| Soil drainage | Somewhat excessivly drained |
| Susceptibility to waterlogging | Never waterlogs. |
| Susceptibility to flooding | Never floods. |
