podzol
The typical soil of coniferous or boreal forests.
During the first part of the oligocratic stage, leaching of brown soils produces acid podzols that favour coniferous woodlands and heaths.
Where it comes from
Borrowed from Russian подзо́л (podzól), consisting of под (pod) "under" and зола́ (zolá) "ash".
Adapted from the Wiktionary entry podzol (CC BY-SA 4.0).