Soil subgroup
Udortent lítico
It has continuous rock (lithic contact) within 50 cm: it is a shallow soil.
What the name says
Soil Taxonomy names are built from parts, and each part says something about the soil. From general to specific:
| Taxonomic order | Entisol | Soil without diagnostic horizons, or almost: recently deposited material (sand, alluvium) or on which the climate did not have time to act. |
|---|---|---|
| Suborder | Ortent | Entisol on material that is neither sandy nor alluvial: eroded slopes, rock, recent sediments. |
| Great group | Udortent | Within the Ortent suborder, it It is a humid climate (udic moisture regime). |
| Subgroup | lítico | It has continuous rock (lithic contact) within 50 cm: it is a shallow soil. |
What it means for farming
Very variable. The sandy ones (Psamentes) retain little water and blow away; alluvial ones (Fluventes) can be good but they flood; the shallow ones on rock (lithic) are barely useful for grazing.
Where it is found
According to the 1:500.000 national map, it covers about 49.194 ha, spread over 5 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.
| Province | Area |
|---|---|
| Corrientes | 49.194 ha |
Districts where it is most common
- Mercedes · Corrientes
- Santo Tomé · Corrientes
- Paso de los Libres · Corrientes
- Monte Caseros · Corrientes
- General Alvear · Corrientes
It also appears on the detailed maps of: Misiones.
How productive it is
Where it is the main soil of the map unit, the productivity index has a median of 6 (very low); half of the units fall between 6 and 14.
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 Udortent subgroups
Soil series
Series are the specific soils, named after places, that detailed maps describe under this name. Two properties with the same series have the same soil.
Misiones
A. Soberbio · San Ignacio
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
- Soil Survey Staff. (2014). Claves para la Taxonomía de Suelos, 12.ª edición. USDA - Natural Resources Conservation Service. · Dominio público (USDA)
- INTA · Dominio público (carta 1:500.000)