Soil great group
Haplumbrept
Of the Umbrept 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..
Haplumbrept 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 Humudept.
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 | Umbrept | Inceptisol with a dark but acidic surface (umbric epipedon). |
| Great group | Haplumbrept | Within the Umbrept 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
- Loam-silt-gravel
- Most common drainage
- Well drained
- Typical effective depth
- 95 cm
Where it is found
According to the 1:500.000 national map, it covers about 1.257.596 ha, spread over 39 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 |
|---|---|
| Salta | 495.111 ha |
| TIERRA DEL FUEGO E ISLAS MALVINAS | 196.082 ha |
| Jujuy | 189.480 ha |
| Entre Ríos | 164.522 ha |
| Catamarca | 80.657 ha |
| Tucumán | 56.195 ha |
| Chubut | 49.020 ha |
| Río Negro | 19.202 ha |
| Santiago del Estero | 7.326 ha |
Districts where it is most common
- Islas del Atlántico Sur · Tierra del Fuego
- General José de San Martín · Salta
- Anta · Salta
- Ledesma · Jujuy
- Santa Bárbara · Jujuy
- La Paz · Catamarca
- Orán · Salta
- Colón · Entre Ríos
- Concordia · Entre Ríos
- Cushamen · Chubut
- Santa Victoria · Salta
- Iruya · Salta
- Guachipas · Salta
- Chicligasta · Tucumán
- Capital · Salta
- Gualeguaychú · Entre Ríos
- La Paz · Entre Ríos
- Bariloche · Río Negro
- La Caldera · Salta
- La Candelaria · Salta
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 29 (low); half of the units fall between 29 and 30.
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
- Haplumbrept fluvéntico
- Haplumbrept éntico
- Haplumbrept lítico
- Haplumbrept páquico
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.
Entre Ríos
Puerto Yeruá
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)