Table 1 Description of landscape configuration metrics.
Structural category | Landscape metrics | Abbreviation | Description |
|---|---|---|---|
Area/Density/Edge | Total Class Area | CA | Measures the total area |
Percentage of Landscape | PLAND | Measures the percentage of landscape | |
Number of Patches | NP | The number of patches in each land use | |
Patch Density | PD | Number of patches per 100 ha | |
Largest Patch Index | LPI | Area of the largest patch | |
Total Edge | TE | Measures the total edge | |
Edge Density | ED | Total length of all edge segments per hectare | |
Mean Patch Area | AREA_MN | The average mean surface of patches | |
Shape | Landscape Shape Index | LSI | The complexity of landscape structure |
Mean Shape Index | MSI | The ratio between the perimeter of a patch and the perimeter of the simplest patch in the same area | |
Area-Weighted Mean Shape Index | SHAPE_AM | A larger value of SHAPE_AM means the area is more complex and irregular in shape | |
Area-Weighted Mean Fractal Dimension Index | FRAC_AM | Fractal dimension: ratio of perimeter per unit area. Increases as patches become more irregular | |
Isolation and Interspersion | Mean Euclidean Nearest-Neighbor Distance | ENN_MN | The average distance between two patches in a landscape |
Inter-sperision Juxtaposition Index | IJI | Proximity of patches in each class. High values correspond to proportionate distribution of patch type adjacencies | |
Connectivity | Patch Cohesion Index | COHESION | Increases as the patches of the corresponding patch type become less connected. |
