
120 Pedodiversity
Type of metrics Index Formula Variables Source
Size and shape Soil body shape index
P
SI
Ap
=
2
SI = Shape index
P = Perimeter of a patch
A = Area
Hole (1953, 1978)*
Degree of chronological
uniformity
Area occupied by Entisols
(younger soils) and soils of
other orders
- Hole (1983)*
Size and shape Mean size of ESA
ik
i
i
P
MS
k
=
=
=
Â
1
MS = Mean ESA size
P
i
= Areal size of the ESA
k = Number of ESAs
Fridland (1976)
Degree of differentiation of the
size of soil contours
()
ik
i
i
PP
DD
kP
=
=
-
=
Â
1
DD = Degree of differentiation
P
i
= Areal size of the ESA
k = Number of ESAs
Ostrowski and Jankowki
(1969)*
Variability of the size of soil
contours
RWV =
V = Variability
W = ...