soil map units where 66A Talacagi is dominant
Soil properties
| Property | Value |
|---|---|
| Geographic distribution | Viti Levu, Vanua Levu |
| Landscape position | Secondary floodplains and depressions in the lowlands and foothills |
| Soil parent material | river alluvium from acidic rocks |
| Slope | Flat to near level (0-2°). Smooth microrelief. |
| Surface outcrops | No surface rock outcrops. No surface stones or boulders. |
| Brief soil profile description | - |
| Soil profile texture | 0-18cm very friable sandy loam. 18-36cm friable to firm sandy loam. 36-102cm compact firm clay loam. |
| Minimum effective rooting depth | <40cm. Compact firm clayey subsoil at 40cm. Very low subsoil nutrient status. |
| Soil pH (acidity) | 0-102cm strongly acid. |
| Salinity | Non saline. |
| Soil fertility under natural conditions | Very low phosphorus (P), potassium (K) and nitrogen (N). |
| Soil moisture regime | aquic |
| Susceptibility to drought | In normal years soil moisture deficits of 30 days are experienced sometime in the period May to October. |
| Soil drainage | Poorly drained. |
| Susceptibility to waterlogging | In normal years water perches over the compact subsoil for up to 90 days sometime in the period November to April. |
| Susceptibility to flooding | Floods depositing sediment have a 1 in 20 year return period. Other floods have a 1 in 2 year return period. |
