soil map units where 189A Tabia 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 igneous rocks |
| Slope | Flat to gently undulating (0-3°). Slightly hummocky microrelief. |
| Surface outcrops | No surface rock outcrops. No surface stones or boulders. |
| Brief soil profile description | - |
| Soil profile texture | 0-28cm clay. 29-43cm clay loam. 43-51cm silt loam. 51-69cm fine sandy clay loam. 69-125cm clay loam. |
| Minimum effective rooting depth | >125cm |
| Soil pH (acidity) | 0-125cm moderately acid. |
| Salinity | Non saline. |
| Soil fertility under natural conditions | Potassium (K) very low throughout. Calcium (Ca) and magnesium (Mg) very low in subsoils. % base saturation low to 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 | Waterlogging may occur 2-3 times in wet season on slopes <3°. |
| Susceptibility to flooding | Sedimentation has occurred in the past, but infrequent now. Occasional flooding (with water lying 2-3 days) on slopes <2° may occur 2-3 times annually sometime in the period November to April. |
