Soil order

Espodosol

Soil acidic with a cold and humid climate, with a horizon where humus, aluminum and iron washed from above accumulate (the spodic horizon).

What it means for farming

Andean-Patagonic forest and Tierra del Fuego. Forestry or conservation use.

Espodosoles on the maps

Humod

Espodosol with a lot of humus in the accumulation horizon.

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