Soil subgroup

Haplumbrept 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.

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 orderInceptisolSoil young, with some development below the surface (a cambic horizon) but without the clay accumulation or dark surface that would define other orders.
SuborderUmbreptInceptisol with a dark but acidic surface (umbric epipedon).
Great groupHaplumbreptWithin 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..
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

Intermediate aptitude and very dependent on location. In Argentina there are many Acueptes: Inceptisoles with excess water, often saline or sodic.

Where it is found

According to the 1:500.000 national map, it covers about 164.522 ha, spread over 8 districts.

Loading map…

National map units that list it. The scale is 1:500.000: good for seeing the region, not a single property.

ProvinceArea
Entre Ríos164.522 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 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.

Other Haplumbrept 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.

Entre Ríos

Puerto Yeruá

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