soil map units where 92D Laucala is dominant
Soil properties
| Property | Value |
|---|---|
| Geographic distribution | Laucala, Koro |
| Landscape position | Young volcanic hill country in the lowlands and foothills |
| Soil parent material | basaltic ash over scoria |
| Slope | Rolling (12-15°). Uneven microrelief. |
| Surface outcrops | No surface rock outcrops. Surface stones and gravels occupy 5% of the surface. |
| Brief soil profile description | - |
| Soil profile texture | 0-65cm friable stony and gravelly loam. On weathering scoria. |
| Minimum effective rooting depth | <100cm |
| Soil pH (acidity) | 0-65cm slightly acid. |
| Salinity | Non saline. |
| Soil fertility under natural conditions | Low nitrogen (N). High phosphate retention. |
| Soil moisture regime | udic/perudic |
| Susceptibility to drought | In normal years soil moisture deficits of up to 30 days are experienced during the period May to October. |
| Soil drainage | Well drained. |
| Susceptibility to waterlogging | Never waterlogs. |
| Susceptibility to flooding | Never floods. |
