soil map units where 131D Vasilaulau is dominant
Soil properties
| Property | Value |
|---|---|
| Geographic distribution | Viti Levu, Vanua Levu |
| Landscape position | Hill country in the lowlands and foothills |
| Soil parent material | basic and intermediate sedimentary rocks |
| Slope | Rolling (12-15°). Generally smooth microrelief. |
| Surface outcrops | Few surface rock outcrops. Few surface stones, no surface boulders. |
| Brief soil profile description | - |
| Soil profile texture | 0-30cm clay loam. 30-45cm stony clay loam. On in situ rock. |
| Minimum effective rooting depth | <45cm. Hard in situ rock at 45cm. |
| Soil pH (acidity) | 0-45cm strongly acid. 45-75cm moderately acid. |
| Salinity | Non saline. |
| Soil fertility under natural conditions | Very low phosphorus (P) and potassium (K) below 25cm. |
| Soil moisture regime | ustic |
| Susceptibility to drought | In normal years soil moisture deficits of >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. |
