36 Afuiva bouldery silt loam

soil map units where 36 Afuiva bouldery silt loam is dominant

Soil properties

Property Value
Geographic distribution Samoa
Landscape position Soils of the lowlands and foothills - very slightly dissected landscapes
Soil parent material from mainly pahoehoe basalt of the Puapua Volcanics
Slope Rolling to strongly rolling slopes
Surface outcrops Surface very rocky. No rock outcrops.
Brief soil profile description -
Soil profile texture 18cm bouldery silty clay loam. 18cm stony silty clay loam. on vesicular lava
Minimum effective rooting depth <40cm
Soil pH (acidity) Slightly acid (pH = 6.0)
Salinity Non saline
Soil fertility under natural conditions Fertile but plant food in organic fraction of topsoil.
Soil moisture regime Without dry season (Perudic moisture regime)
Susceptibility to drought Very weak dry season (1 month <60mm rainfall). Rainfall 3250-4375mm.
Soil drainage Well drained
Susceptibility to waterlogging Never waterlogs
Susceptibility to flooding Never floods

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