Lf Lotofoa soils

soil map units where Lf Lotofoa soils is dominant

Soil properties

Property Value
Geographic distribution Ha’apai
Landscape position Weathered ash overlying organic sediments around edges of the swamp on Foa islands.
Soil parent material
Slope Flat
Surface outcrops
Brief soil profile description 0-30 cm Very dark grey friable to firm clay loam; 30-70 cm Greyish brown and brown firm mottled concretionary clay loam; on Black soft humic loam.
Soil profile texture
Minimum effective rooting depth <100 cm
Soil pH (acidity) Near neutral to slightly acid at depth
Salinity
Soil fertility under natural conditions Organic carbon (C) and nitrogen (N) values are low. phosphorus (P) high dropping to low with depth; high Base saturation (%).
Soil moisture regime
Susceptibility to drought
Soil drainage Poorly drained
Susceptibility to waterlogging Limitations of poor drainage which results in ponded surface water for short periods after heavy rainfall.
Susceptibility to flooding Brief flooding after heavy rainfall.

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