Soil great group
Haplacuept
Of the Acuept 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..
Haplacuept 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 Epiacuept or Endoacuept.
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 | Inceptisol | Soil young, with some development below the surface (a cambic horizon) but without the clay accumulation or dark surface that would define other orders. |
|---|---|---|
| Suborder | Acuept | Inceptisol with excess water and redox depletions near the surface. |
| Great group | Haplacuept | Within the Acuept 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.. |
What it means for farming
Intermediate aptitude and very dependent on location. In Argentina there are many Acueptes: Inceptisoles with excess water, often saline or sodic.
- Most common surface texture
- Silt loam
- Most common drainage
- Moderate
- Typical effective depth
- 40 cm
Where it is found
According to the 1:500.000 national map, it covers about 361.414 ha, spread over 4 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 |
|---|---|
| Formosa | 200.422 ha |
| Chaco | 160.992 ha |
Districts where it is most common
It also appears on the detailed maps of: Entre Ríos.
How productive it is
Where it is the main soil of the map unit, the productivity index has a median of 5 (very low); half of the units fall between 5 and 5.
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.
Subgroups on the maps
- Haplacuept típico
- Haplacuept aérico
- Haplacuept vérmico
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)