ESRM 210

Introduction to Soils

November 19, 2007

SOM around the world

SOM in a deciduous forest vs a prairie



prarie vs forest

 

SOM in various soil order's typical profile




SOM is preserved with crop rotation and fertilization (first picture)

Humified material produced from added organic residues is persistant in the soil (second picture)

SOM and Farming


General Increases in OM