Natural Soil Drainage Class Flashcards
0
Q
Well drained
A
No redox features above 100 cm
1
Q
Somewhat excessively drained
A
High hydraulic conductivity, low water retention.
Usually sandy and/or gravelly
2
Q
Moderately well drained
A
Redox features can occur between 50 and 100 cm but the upper B horizons are of a relatively high chroma (brown)
3
Q
Somewhat poorly drained
A
Redox depletions writhing the upper 50 cm but there is at least one brown horizon within 100 cm
4
Q
Poorly drained
A
Thin surface with depleted matrices in the subsurface.
High water table or slowly permeable layer within profile.
6
Q
Very poorly drained
A
Thick surface (Umbric) and strongly gleyed / depleted matrices in all of subsurface.
Frequently ponded
