ABBA
ACRU
BEPA
PICOC
PIRU
Abies balsamea
Acer rubrum
Betula papyrifera
Pinus contorta var. contorta
Picea rubens
balsam fir
red maple
paper birch
beach pine
red spruce
—
albic horizon
spodic horizon
redox depletions with chroma 2 or less
redox concentrations
abrupt textural change
9—13
13—26
62—106
106—165
—-
3
52
315
1035
130
6