HuH Houma hill soils

soil map units where HuH Houma hill soils is dominant

Soil properties

Property Value
Geographic distribution ‘Eua
Landscape position Ash-covered tuffs or limestone of the highest surface of ‘Eua.
Soil parent material
Slope Mod. steep to steep (12-30°)
Surface outcrops
Brief soil profile description 0-60 cm Dark reddish brown friable silty clay; 60-75 cm Dark red friable to firm clay; clay coatings.
Soil profile texture
Minimum effective rooting depth 75 cm
Soil pH (acidity) Moderately acid
Salinity
Soil fertility under natural conditions Organic carbon (C) medium and low at depth; nitrogen (N) and phosphorus (P) low; phosphorus (P) retention high; Base saturation (%), exchangeable calcium (Ca) and magnesium (Mg) high; reserve potassium (K) low.
Soil moisture regime
Susceptibility to drought
Soil drainage Well to excessively drained
Susceptibility to waterlogging
Susceptibility to flooding

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