Reference soil Colombia 10: Arenosol

CO010

Arenosols occur over large areas in Africa, central and western Australia, the Middle East and central China. Smaller areas are found along coastlines all over the world.

Characteristics

Soils with a loamy sand or coarser texture either to a depth of at least 100 cm from the soil surface, or to a (petro-)plinthic or salic horizon between 50 and 100 cm from the soil surface. They contain less than 35 percent (by volume) rock fragments or other coarse fragments within 100 cm from the soil surface and have no diagnostic horizons other than an ochric, yermic or albic horizon, a (petro-)plinthic or salic horizon below 50 cm from the soil surface, or an argic or spodic horizon below 200 cm below the soil surface.

Distribution of Arenosols (rough estimation supplied by soilgrids)

 

Reference soil CO010: Arenosols

PHYSIOGRAPHY: Local relief: 0 - 2 m. CLIMATE: Available climatic data of the Araracuara area are incomplete. The rainfall is estimated between 3000-3500 mm/year (closer to 3000 mm) with a minimum in January between 150-200 mm (closer to 150 mm). A maximum is recorded in July between 200-250 mm (closer to 250 mm). The evaporation is estimated to be half of the precipitation, e.g. 1600 mm/year. The relative humidity is more than 75% with a maximum in January and February. ADDITIONAL NOTES ON PROFILE DESCRIPTION: Ah - also many coarse roots; also medium loamy sand; AB - also common coarse roots; also medium loamy sand; B1 - also common coarse roots; sand texture: also medium the boundary of the C horizon may be abrupt and broken, it may occur at 70 cm but also at 40 cm.

 

Classification

WRB 2006WRB 1998
Ferralic-Albic- Arenosol (Hyperdystric)Albi-Ferralic- Arenosol (Hyperdystric)
-ferralic
0-13 cmochric horizon
5-130 cmalbic horizon
-ferralic
FAO-UNESCO-ISRIC 1988FAO-UNESCO-ISRIC 1974
Ferrali-Albic ArenosolAlbic Arenosol
0-13 cmochric A horizon
- cmochric A horizon
-ferralic
0-13 cmochric A horizon
-albic material