Soil subgroup

Criohumod típico

It is the central concept of the great group: it has its features and none that brings it closer to another group.

Criohumod is a name from the 1975 taxonomy, which many INTA soil survey maps were made with. The current edition no longer has this group: today it would be classified as Humicriod.

What the name says

Soil Taxonomy names are built from parts, and each part says something about the soil. From general to specific:

Taxonomic orderEspodosolSoil acidic with a cold and humid climate, with a horizon where humus, aluminum and iron washed from above accumulate (the spodic horizon).
SuborderHumodEspodosol with a lot of humus in the accumulation horizon.
Great groupCriohumodWithin the Humod suborder, it It's cold weather.
SubgrouptípicoIt is the central concept of the great group: it has its features and none that brings it closer to another group.

What it means for farming

Andean-Patagonic forest and Tierra del Fuego. Forestry or conservation use.

Where it is found

According to the 1:500.000 national map, it covers about 151.541 ha, spread over 2 districts.

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National map units that list it. The scale is 1:500.000: good for seeing the region, not a single property.

ProvinceArea
TIERRA DEL FUEGO E ISLAS MALVINAS151.541 ha

Districts where it is most common

Soils it shares map units with

Several soils share each map unit. These are the ones most often found alongside this one: on a property, you will likely find them in the nearby low ground or on the next rise.

The definitions are a plain-language summary of the USDA Keys to Soil Taxonomy. The formal definition includes thickness, color and percentage thresholds that are left out here.

Sources