soil map units where 91B Reree is dominant
Soil properties
| Property | Value |
|---|---|
| Geographic distribution | Rotuma |
| Landscape position | Young volcanic hill country in the lowlands and foothills |
| Soil parent material | basaltic ash over scoria |
| Slope | Undulating (4-7°). Even microrelief. |
| Surface outcrops | Few surface rock outcrops. Few surface stones. |
| Brief soil profile description | - |
| Soil profile texture | 0-18cm silt loam. 18-70cm sandy loam. 70-125cm gravelly very coarse sand. |
| Minimum effective rooting depth | <70cm. Profuse (>75%) weathered scoria gravels at 70cm. |
| Soil pH (acidity) | 0-40cm near neutral. 40-125cm slightly acid. |
| Salinity | Non saline. |
| Soil fertility under natural conditions | Potassium (K) very low below 18cm. Extremely high phosphorus retention. |
| Soil moisture regime | udic/perudic |
| Susceptibility to drought | In normal years soil moisture deficits are never experienced. |
| Soil drainage | Well drained. |
| Susceptibility to waterlogging | Never waterlogs. |
| Susceptibility to flooding | Never floods. |
