
Pedodiversity and Landscape EcologyPedodiversity and Landscape Ecology 115
Neighbourhood
and interaction
indices
Accessibility of
a patch
jn
iij
j
ad
=
=
=
Â
1
a
i
= Index of accessibility of patch i
d
ij
= Distance along a linkage between
patch i and any of the n neighbouring
patches j
Lowe and Moryadas (1975),*
Forman and Godron (1986)
Interaction
among patches
∑
=
=
=
nj
j
j
j
i
d
A
l
1
2
l
i
= Degree of interaction of the patch i with
n neighbouring patches
A
j
= Area of any adjacent patch j
d
j
= Distance between the edges of the
patch i and any patch j
Whitecomb et al. (1981),*
Forman and Godron (1986)
Dispersion of
patches
cc
Rd
l
p
ʈ
=
Á˜
˯
2
R
c
= Index of dispersion
d
c
= Average ...