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9 Cards in this Set

  • Front
  • Back
which horizon is named for its organic composition
O horizon
which horizon is the presence of humus and clay particles in this horizon is important for providing a chemical link between soil nutrients and plants...its also darker and richer in organic content compared to lower horizons
A horizon
what horizon is made up o f coarse sand, silt, and resistan minerals.
E horizon
which horizon has clays, alum. and iron leached from A and E and deposited here.
B horizon
whcih horizon consists of weathered rock or weathered parent material...near regolith
C horizon
solum refers to the combination of which horizons
A E and B
what process removes clay and minerals from the A and E horizons and carries them into B horizon
eluviation
what process is a depositional process involving the accumulation of clays, alum oxides, and iron oxides to the B horizon
illuviation
what are the 4 basic soil structures
1. platy
2. prismatic
3. blocky
4. spheroidal