Microbial symbiont with grasses

Microbial symbiont with Azolla

Microbial symbiont with pine trees

Microbial symbiont with Lichen

Microbial symbiont with actinorhizal plants

Microbial symbiont with leguminous plants

Ochric

Natric

Umbric

Histic

Spodic

Kandic

Oxic

Albic

Xeric

Aridic

Ustic

Udic

Aquic

subordinate horizon designation
"p"

subordinate horizon designation
"t"

subordinate horizon designation
"h"

subordinate horizon designation
"k"

subordinate horizon designation
"g"

Histosol

Entisol

Andisol

Inceptisol

Aridisol

Vertisol

Mollisol

Alfisol

Ultisol

Spodosol

Oxisol

Immobilization

Mineralization

Nitrification

Volatilization

Denitrification