soil map units where 28A Wainivesi is dominant
Soil properties
| Property | Value |
|---|---|
| Geographic distribution | Viti Levu |
| Landscape position | Terraces of the major floodplains in the lowlands and foothills |
| Soil parent material | river alluvium from basic and intermediate rocks |
| Slope | Flat to gently undulating (0-3°). Smooth microrelief. |
| Surface outcrops | No surface rock outcrops. No surface stones or boulders. |
| Brief soil profile description | - |
| Soil profile texture | 0-23cm friable clay loam. 23-46cm firm gritty clay loam. 46-76cm very firm gritty clay loam. 76-122cm very firm gritty clay. 122-140cm very firm gritty loam. |
| Minimum effective rooting depth | <125cm |
| Soil pH (acidity) | 0-125cm moderately acid. 122-140cm slightly acid. |
| Salinity | Non saline. |
| Soil fertility under natural conditions | Very low phosphorus (P) and very low potassium (K) below 23cm. |
| Soil moisture regime | udic/perudic |
| Susceptibility to drought | Never experiences soil moisture deficits. |
| Soil drainage | Imperfectly drained. |
| Susceptibility to waterlogging | In normal years may waterlog below 125cm sometime during the period November to April. |
| Susceptibility to flooding | Floods depositing sediment have a 1 in 25 year return period. Other floods have a 1 in 5 year return period. |
