soil map units where 59A Waibula is dominant
Soil properties
| Property | Value |
|---|---|
| Geographic distribution | Taveuni |
| Landscape position | Secondary floodplains and depressions in the lowlands and foothills |
| Soil parent material | river alluvium from basaltic rocks |
| Slope | Flat to gently undulating (0-3°). Uneven microrelief with common surface basalt boulders. |
| Surface outcrops | No surface rock outcrops. Basalt boulders occupy 5% of the surface. |
| Brief soil profile description | - |
| Soil profile texture | 0-27cm very friable coarse sandy loam. 27-30cm very friable coarse sand. 30-110cm very friable sandy clay loam. On basalt boulders. |
| Minimum effective rooting depth | >100cm |
| Soil pH (acidity) | 0-30cm moderately acid. 30-110cm slightly acid. |
| Salinity | Non saline. |
| Soil fertility under natural conditions | Low potassium (K) and nitrogen (N). |
| Soil moisture regime | udic/perudic |
| Susceptibility to drought | In normal years soil moisture deficits are never experienced. |
| Soil drainage | Well drained. |
| Susceptibility to waterlogging | Water table >120cm. Never waterlogs. |
| Susceptibility to flooding | Floods depositing sediment have a 1 in 10 year return period. Other floods have a 1 in 2 year return period. |
