All Soils

Question 1

A1: Histosol

Answer 1

16 inches or more of organic material (muck/Hemic/Fibric)

Question 2

A2: Histic Epipedon

Answer 2

A thick organic soil horizon (8-24 inches)
that is saturated with water at some period of the year (unless the soil is artificially drained) and that is at or near the surface of a mineral soil

Question 3

A3: Black Histic

Answer 3

A organic layer peat/mucky peat/muck that starts within the first 6 inches and is 8 inches or more in thickness and is above 10yr 3-2 mineral soil

Question 4

A4: Hydrogen Sulfide

Answer 4

A hydrogen sulfide odor occurring past a depth of 12 inches, side effect of anaerobic respiration

Question 5

A5: Stratified Layers

Answer 5

Stratified Soil Layers starting at a depth of 6 inches, at least one layer must be 10yr 3-1 or organic and remaining layers must be 10yr 3-2, must be 70 percent coated if sand

Question 6

A6: Organic Bodies

Answer 6

At least 2 percent organic material within 6 inches of the soil surface

Question 7

A7: 5cm Mucky Mineral

Answer 7

2 inches of Mucky Mineral soil within the first 6 inches of soil

Question 8

A8: Muck Presence

Answer 8

LRR: U only A layer of 10yr 3-1 muck starting at a depth of 0-6 inches

Question 9

A9: 1cm Muck

Answer 9

LRR: P & T only. A .5 inch layer of 10yr 3-1 muck starting at a depth of 0-6 inches

Question 10

A11: Depleted below dark surface

Answer 10

A dark layer that is 6 inches or less thick sits above a depleted or gleyed layer. The gleyed layer has to be 6 inches thick or 2 inches if mixed with soil

Question 11

A12: Thick Dark Surface

Answer 11

A black layer 12 inches or more in thickness that sit directly above a debleted or gleyed matrix