50 Vini clay

soil map units where 50 Vini clay is dominant

Soil properties

Property Value
Geographic distribution Upolo
Landscape position Soils of the lowlands and foothills - moderately dissected landscapes
Soil parent material from calcereous lithic tuffs of the Vini Volcanics
Slope Rolling and easy rolling slopes
Surface outcrops Surface free from stones and boulders. No rock outcrops.
Brief soil profile description -
Soil profile texture 46cm clay. on rubbly clay with vitric tuff fragments
Minimum effective rooting depth 100cm
Soil pH (acidity) Slightly acid (pH = 6.3)
Salinity Non saline
Soil fertility under natural conditions High fertility. Base saturation 100%. Moderate values for exchangeable magnesium (Mg), calcium (Ca) and potassium (K), and available phosphorus (P).
Soil moisture regime Without dry season (Perudic moisture regime)
Susceptibility to drought Weak to moderate dry season (1-2 months <100mm rainfall). Rainfall 2500-3500mm.
Soil drainage Well drained
Susceptibility to waterlogging Never waterlogs
Susceptibility to flooding Never floods

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