soil map units where 27H Mulifanua hill soils is dominant
Soil properties
| Property | Value |
|---|---|
| Geographic distribution | Samoa |
| Landscape position | Soils of the lowlands and foothills - slightly dissected landscapes |
| Soil parent material | from scoria and basalt of the Mulifanua Volcanics |
| Slope | Moderately steep slopes with strongly rolling areas |
| Surface outcrops | Surfaces variable - some stony, some gravelly, some very bouldery. |
| Brief soil profile description | - |
| Soil profile texture | 10cm very stony gritty clay. 45cm stony and gravelly clay. on gravelly bouldery loam |
| Minimum effective rooting depth | <75cm |
| Soil pH (acidity) | Slightly acid (pH = pH = 6.2) |
| Salinity | Non saline |
| Soil fertility under natural conditions | Very fertile under forest but plant nutrients rapidly depleted under cultivation. |
| Soil moisture regime | With weak to strong dry season (Udic moisture regime) |
| Susceptibility to drought | Weak dry season (1-2 months <100m rainfall). Rainfall 2750-3250mm. |
| Soil drainage | Well drained |
| Susceptibility to waterlogging | Never waterlogs |
| Susceptibility to flooding | Never floods |
