Naming of Soil Horizons Flashcards
1
Q
Horizon dominate by organic matter
A
O Horizon
2
Q
Organic Rich, mineral horizon at or adjacent to the surface.
A
A Horizon (Topsoil)
3
Q
Mineral Horizon of maximum eluviations/leaching zone
A
E Horizon
4
Q
Mineral Horizon of maximum illuviation and formed beneath O,A, and E
A
B Horizon
5
Q
Weathered parent material
A
C Horizon
6
Q
Underlying consolidated Bedrock
A
R Horizon
7
Q
plowing/disturbance
A
p
8
Q
clay accumulation
A
t
9
Q
gleying
A
g
10
Q
illuvial organic matter (humic)
A
h
11
Q
development of color/structure (weak)
A
w
12
Q
oxic
A
o
13
Q
Carbon accumulation
A
k
14
Q
highly decomposed (sapric)
A
a
15
Q
moderate decomposed (hemic)
A
e
