Module 18 Flashcards
1
Q
Sand
A
Largest of the 3 soil components
2
Q
Silt
A
A soil component intermediate in size
3
Q
Clay
A
Smallest of the 3 soil components
4
Q
Soil horizons
A
Horizontal layers of soil
5
Q
O horizon
A
Composed of partially decomposed organic leaf litter
6
Q
A horizon
A
Topsoil
7
Q
B horizon
A
Subsoil
8
Q
C horizon
A
Composed of weathered parent material sitting on top of bedrock
9
Q
Soil triangle
A
Used to determine textural classes of soil from the percentages of sand, slit, and clay
10
Q
Cation
A
Charged mineral ions
11
Q
Cation exchange capacity
A
The ability of a particular soil to absorb and release cations
12
Q
Base saturation
A
The proportion of soil basses to soil acids, expressed as a percentage
