83H Afiamalu hill soils

soil map units where 83H Afiamalu hill soils is dominant

Soil properties

Property Value
Geographic distribution Samoa
Landscape position Soils of the uplands - moderately dissected landscapes
Soil parent material from scoria basalt of the Salani Volcanics
Slope Moderately steep slopes
Surface outcrops Surface locally bouldery. No rock outcrops.
Brief soil profile description -
Soil profile texture 15cm peaty silt loam. 25cm gritty silty clay loam. 25cm gravelly clay loam. on weathering scoria
Minimum effective rooting depth <70cm
Soil pH (acidity) Strongly acid (pH = 4.5)
Salinity Non saline
Soil fertility under natural conditions Very low fertility. Base saturation very low. Topsoil high exchangeable potassium (K) and organic calcium (C) values but low in subsoil.
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

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