soil map units where 9a Sauniatu silty clay loam is dominant
Soil properties
| Property | Value |
|---|---|
| Geographic distribution | Upolo |
| Landscape position | Soils of the coastlands, valley floors and their margins |
| Soil parent material | from basaltic alluvium |
| Slope | Flat |
| Surface outcrops | Surface free from stones. No rock outcrops. |
| Brief soil profile description | - |
| Soil profile texture | 25cm clay. 45cm slightly sandy clay. 20cm sandy clay. on gravels |
| Minimum effective rooting depth | >100cm |
| Soil pH (acidity) | Slightly acid (pH = pH = 6.5) |
| Salinity | Non saline |
| Soil fertility under natural conditions | Moderate to high fertility. Base saturation, organic carbon (C) and exchangeable potassium (K) values low. Available potassium (P) very high. |
| Soil moisture regime | - |
| Susceptibility to drought | 0-3 dry months. Rainfall 2250-4375mm. |
| Soil drainage | Well drained |
| Susceptibility to waterlogging | Never waterlogs |
| Susceptibility to flooding | Rare flooding |
