SS105 Soil Horizons and Phases

0.0(0)
studied byStudied by 0 people
learnLearn
examPractice Test
spaced repetitionSpaced Repetition
heart puzzleMatch
flashcardsFlashcards
Card Sorting

1/12

encourage image

There's no tags or description

Looks like no tags are added yet.

Study Analytics
Name
Mastery
Learn
Test
Matching
Spaced

No study sessions yet.

13 Terms

1
New cards
What is a soil's profile?
Looking at a soil from the side.
2
New cards
What is a soil horizon?
The different horizontal layers seen in a true soil.
3
New cards
What is the O horizon?
Thatch or litter layer.
4
New cards
What is the A horizon?
Topsoil
5
New cards
What is the B horizon?
Subsoil
6
New cards
What is the C horizon?
Substratum (parent material)
7
New cards
What is the R horizon?
Bedrock
8
New cards
What is the order of the horizons from top to bottom?
O, A, E, B, C, R
9
New cards
If a soil has a B horizon, what has moved into it from the shallower horizons?
Something like clays, oxides, or carbonates.
10
New cards
When is an E horizon present?
When the depth of soil from which clays and oxides have been removed is wider than the depth to which organic matter has accumulated in the A horizon.
11
New cards
What is an E horizon?
Layer of silt and sand left behind after clay, minerals, and organic matter leached out, typically by water.
12
New cards
What are the pore spaces of soil filled with?
Water and air
13
New cards
What do soil solids consist of?
Minerals and organic matter