Soil subgroup

Haplargid borólico

It approaches the Boroles: Molisoles cold climate.

What the name says

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

Taxonomic orderAridisolSoil arid climate: water is lacking most of the year and the profile accumulates what the rain cannot wash away (carbonates, gypsum, salts) or clay from more humid times.
SuborderArgidAridisol with a clay accumulation horizon, inherited from a more humid past climate.
Great groupHaplargidWithin the Argid suborder, it It is the simplest of the suborder: it does not have a clay horizon or any other feature that places it in a more specific group..
SubgroupborólicoIt approaches the Boroles: Molisoles cold climate.

What it means for farming

Without irrigation there is no agriculture: they are soils of native woodland, extensive grazing or, with water, irrigated oases (Mendoza, San Juan, the valleys of the NOA).

Most common surface texture
Loamy sand
Most common drainage
Moderate
Typical effective depth
110 cm

Where it is found

According to the 1:500.000 national map, it covers about 1.857.928 ha, spread over 9 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
Santa Cruz1.124.535 ha
Chubut733.393 ha

Districts where it is most common

How productive it is

Where it is the main soil of the map unit, the productivity index has a median of 53 (average); half of the units fall between 53 and 63.

Taken from the maps that include this data. A map unit with several soils has a single index, and it is only attributed to the dominant soil.

Other Haplargid subgroups

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