soil map units where 25H Saleimoa hill soils is dominant
Soil properties
| Property | Value |
|---|---|
| Geographic distribution | Savaii |
| Landscape position | Soils of the lowlands and foothills - slightly dissected landscapes |
| Soil parent material | from aa and pahoehoe basalt and scoria of the Mulifanua Volcanics |
| Slope | Moderately steep slopes |
| Surface outcrops | Surface very bouldery and stony. No rock outcrops. |
| Brief soil profile description | - |
| Soil profile texture | 15cm bouldery loam. 12cm very bouldery loam. on vesicular aa basalt boulders |
| Minimum effective rooting depth | <40cm |
| Soil pH (acidity) | Slightly acid (pH = pH = 6.3) |
| Salinity | Non saline |
| Soil fertility under natural conditions | Moderate fertility. High exchangeable calcium (Ca), magnesium (Mg), potassium (K) values. Moderate available phosphorus (P). |
| Soil moisture regime | With weak to strong dry season (Udic moisture regime) |
| Susceptibility to drought | Weak dry season (1-2 months <100mm rainfall). Rainfall 2250-3250mm. |
| Soil drainage | Well drained |
| Susceptibility to waterlogging | Never waterlogs |
| Susceptibility to flooding | Never floods |
