soil map units where 180H Lakeba is dominant
Soil properties
| Property | Value |
|---|---|
| Geographic distribution | Viti Levu, Lau, Vanua Levu, Lomai Viti |
| Landscape position | Hill country in the lowlands and foothills |
| Soil parent material | basic and intermediate igneous rocks |
| Slope | Very steep (36-40°). Uneven microrelief. |
| Surface outcrops | Few surface rock outcrops. Few surface stones. |
| Brief soil profile description | - |
| Soil profile texture | 0-20cm gritty clay. 20-50cm clay. On strongly weathered in situ rock. |
| Minimum effective rooting depth | >50cm. Weathered rock at 60cm. |
| Soil pH (acidity) | 0-60cm moderately acid. |
| Salinity | Non saline. |
| Soil fertility under natural conditions | Very low phosphorus (P), potassium (K) and organic carbon (C) throughout. Exchangeable calcium (Ca) very low. |
| Soil moisture regime | ustic |
| Susceptibility to drought | In normal years soil moisture deficits >100 days are experienced sometime in the period May to October. |
| Soil drainage | Well drained. |
| Susceptibility to waterlogging | Never waterlogs. |
| Susceptibility to flooding | Never floods. |
