Reference soil Samoa 02: Cambisol

WS002

Cambisols occur mainly in the temperate and boreal regions of the world, where the soil’s parent material is still young or where low temperatures slow down the processes of soil formation.

Characteristics

Soils having either a cambic horizon (a horizon showing evidence of alteration with respect to the underlying material), or a mollic horizon overlying a subsoil, which has a base saturation of less than 50 percent in some part within 100 cm from the soil surface, or one of the following diagnostic horizons within the specified depth: an andic, vertic, or vitric horizon starting between 25 and 100 cm; a (petro-)plinthic or salic horizon starting between 50 and 100 cm, in absence of loamy sand or coarser textures above these horizons.

Distribution of Cambisols (rough estimation supplied by soilgrids)

 

Reference soil WS002: Cambisol

A fine, moderately well drained dark reddish brown soil (5 YR 3/2 and /3 moist) of old basic alluvium, affected by irregular flooding (deposited cobbles (7 %) in upper horizon). (climatical data (TEMPERATURE in C) of Faleolo Airport: TIME MEAN MAX MIN YEARS Jan 26.7 30.3 24.0 1975-77 Jul 25.9 29.9 23.9 1974-76)

 

Classification

WRB 2014 
Cambisol 
 

 

Local classification:Falevao clay loam and clay