Indices and units | Description |
Number of Patches―NP | NP > 1, without limit, NP = 1 when a landscape or class type contains one patch, number of patches corresponding to class type at a landscape. |
Patch Density―PD (Patches/100 ha) | Patches corresponding to the total forest cover divided by the total Area multiplied by 100. If forest class represents a greater PD, it indicates that it is subdivided into many patches and thus could be considered as fragmented. |
Mean Patch Size―MPS (ha) | The average area of patches corresponding to the forest cover type. Greater MPS indicate slightly fragmented forests. |
Interspersion Juxtaposition Index―IJI (%) | IJI ≥ 1 ≤ 100, IJI measures patch adjacency. IJI approaches 100 when all patch types are equally adjacent to each other. |
Mean-Proximity Index-PROX_MN (m) | PROX_MN ≥ 0, PROX_MN = 0 if a patch has no neighbors of the same type at specific radius. Lower number of patches at a specified radius distance signifies the state of fragmentation. |