soil map units where 157B Koroniqala is dominant
Soil properties
| Property | Value |
|---|---|
| Geographic distribution | Viti Levu, Kadavu |
| Landscape position | Hill country in the lowlands and foothills |
| Soil parent material | silicified and indurated tuffs, sandstones, marls and agglomerates |
| Slope | Undulating (4-7°). Uneven microrelief. |
| Surface outcrops | Surface rock outcrops cover 3% of the surface. No surface boulders or stones. |
| Brief soil profile description | - |
| Soil profile texture | 0-10cm friable slightly sandy clay. 10-60cm firm clay. On compact strongly weathered parent material of very plastic clay. |
| Minimum effective rooting depth | <60cm. Weathered in situ parent material at 60cm. |
| Soil pH (acidity) | 0-60cm strongly acid. |
| Salinity | Non saline. |
| Soil fertility under natural conditions | Very low phosphorus (P), nitrogen (N) and potassium (K). |
| Soil moisture regime | ustic |
| Susceptibility to drought | In normal years soil moisture deficits of up to 120 days are experienced sometime in the period May to October. |
| Soil drainage | Well drained. |
| Susceptibility to waterlogging | Never waterlogs. |
| Susceptibility to flooding | Never floods. |
