SWS3022 Soil Taxonomy Study Guide with Complete Solutions
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Course
SWS3022
Institution
SWS3022
SWS3022 Soil Taxonomy Study Guide
with Complete Solutions
What are the Soil Master Horizons? - Answer️️ -O
A
E
B
C
R
The O MASTER HORIZON - Answer️️ -Greater than 20% OM
Organic horizon formed above the mineral soil.
Derived from decomposition of plant and animal residues
Range i...
The E MASTER HORIZON - Answer✔️✔️-Zone of ELUVIATION
E = eluviation = exit
Maximum losses by translocation
1. OM
2. Clays
3. Carbonates
4. Fe/Al oxides
5. Light-colored
6. Contains quartz (resistant primary minerals)
The B MASTER HORIZON - Answer✔️✔️-Accumulates material lost from above, or
forms in place. (translocation, transformation)
Zone of ILLIVIATION = additions
The subordinate horizon indicates WHAT is accumulating
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