Hu2 Houma soils, rolling phase

soil map units where Hu2 Houma soils, rolling phase is dominant

Soil properties

Property Value
Geographic distribution ‘Eua
Landscape position Ash-covered tuffs or limestone on the highest surface of ‘Eua.
Soil parent material
Slope Rolling (5-12°)
Surface outcrops
Brief soil profile description 0-21 cm Dusky red friable silty clay; 21-60 cm Dark reddish brown friable to firm clay; 60-150 cm Dark red firm clay; clay coatings.
Soil profile texture
Minimum effective rooting depth 150 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 drained
Susceptibility to waterlogging
Susceptibility to flooding

Partners and funders