soil map units where 147A Uaua is dominant
Soil properties
| Property | Value |
|---|---|
| Geographic distribution | Vanua Levu |
| Landscape position | Hill country in the lowlands and foothills |
| Soil parent material | quartz rich and acidic tuffs |
| Slope | Flat to gently undulating (0-3°). Even microrelief. |
| Surface outcrops | No surface rock outcrops. No surface stones or boulders. |
| Brief soil profile description | - |
| Soil profile texture | 0-25cm friable sandy loam. 25-100cm firm sandy clay. |
| Minimum effective rooting depth | <70cm. Water table at 70cm during the wet season. |
| Soil pH (acidity) | 0-100cm strongly acid. |
| Salinity | Non saline. |
| Soil fertility under natural conditions | Low nitrogen (N), phosphorus (P) and potassium (K). |
| Soil moisture regime | ustic |
| Susceptibility to drought | In normal years soil moisture deficits of up to 100 days are experienced sometime in the period May to October. |
| Soil drainage | Imperfectly drained. |
| Susceptibility to waterlogging | In normal years waterlogs below 70cm for up to 3 months sometime in the period November to April. |
| Susceptibility to flooding | Flooding for up to 7 days associated with high intensity storms occur on 3-4 occasions during the wet season. |
