(L124) Patch Richness

m =     number of patch types (classes) present in the landscape, excluding the landscape border if present.

Description

PR equals the number of different patch types present within the landscape boundary.

Units 

None

Range

PR ≥ 1, without limit

Comments

Patch richness is perhaps the simplest measure of landscape composition, but note that it does not reflect the relative abundances of patch types. Note, this metric is redundant with both patch richness density and relative patch richness.