Soil subgroup

Cambortid fluvéntico

The organic matter does not go down little by little with depth but rather goes up and down: it is made up of layers of alluvium.

Cambortid 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 Haplocambid.

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.
SuborderOrtidAridisol without clay horizon.
Great groupCambortidWithin the Ortid suborder, it has only one cambic horizon: incipient development, no accumulations.
SubgroupfluvénticoThe organic matter does not go down little by little with depth but rather goes up and down: it is made up of layers of alluvium.

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).

Where it is found

According to the 1:500.000 national map, it covers about 349.458 ha, spread over 11 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
Río Negro150.874 ha
Chubut146.279 ha
Jujuy22.626 ha
Córdoba22.017 ha
Salta7.662 ha

Districts where it is most common

Other Cambortid 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