soil map units where 37H Asolelei hill soils is dominant
Soil properties
Property | Value |
---|---|
Geographic distribution | Savaii |
Landscape position | Soils of the lowlands and foothills - very slightly dissected landscapes |
Soil parent material | from mainly pahoehoe basalt of the Puapua Volcanics |
Slope | Moderately steep slopes |
Surface outcrops | Surface very bouldery. No rock outcrops. |
Brief soil profile description | - |
Soil profile texture | 23cm very bouldery silty clay. on blocky pahoehoe lava boulders with silty clay in fissures |
Minimum effective rooting depth | <30cm |
Soil pH (acidity) | Slightly acid (pH = 6.4) |
Salinity | Non saline |
Soil fertility under natural conditions | Moderately fertile. Most nutrients contained in topsoil. |
Soil moisture regime | Without dry season (Perudic moisture regime) |
Susceptibility to drought | No dry season. Rainfall 4375-5000mm. |
Soil drainage | Well drained |
Susceptibility to waterlogging | Never waterlogs |
Susceptibility to flooding | Never floods |