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Soil (Final)
Question | Answer |
---|---|
What makes a soil profile? | Horizons |
Horizons are | Vertical differences in soil |
What are the types of soil profiles? | O horizon, A horizon, E horizon, B horizon, C horizon |
O horizon is | Organic matter |
A horizon is | Organic and mineral matter |
Topsoil is made up of | O horizon and A horizon |
E horizon is | Little organic matter |
The E horizon is the zone of | Eluviation and leaching |
B horizon is | Zone of accumulation |
C horizon is | Partially altered parent material |
The "true soil" (solum) is made up of | O, A, E, and B horizons |
A combination of mineral and organic matter, water, and air | Soil |
What are the 3 generic soil types? | Pedalfer, pedocal, and laterite |
Accumulation of iron oxides and Al-rich clays in the B horizon, best developed under forest vegetation | Pedalfer |
High accumulations of calcium carbonate, associated with dry grasslands and brush vegetation | Pedocal |
Hot and wet tropical climates, intense chemical weather | Laterite |