soil profile: Media
Images
Aridisol soil profile, showing a low-humus surface layer atop a clay and calcium...
U.S. Department of Agriculture, Natural Resources Conservation Service, Soil Survey Staff
Ferralsol soil profile from Brazil, showing a deep red subsurface horizon resulting...
© ISRIC, www.isric.nl
Gelisol soil profile showing a year-round frozen subsurface layer (permafrost) below...
U.S. Department of Agriculture, Natural Resources Conservation Service, Soil Survey Staff
Spodosol soil profile, showing a strongly leached surface horizon above a sandy layer...
U.S. Department of Agriculture, Natural Resources Conservation Service, Soil Survey Staff
Depth to lime accumulation in relation to annual rainfall. Lime (CaCO3)...
Encyclopædia Britannica, Inc.