| Geospatial Analysis - a comprehensive guide. 3rd edition © 2006-2009 de Smith, Goodchild, Longley |
| Fragstats landscape metrics |
|
|
The table below provides details of the 100+ metrics supported by Fragstats. Many of these measures are very similar, and can be considered as highly correlated. Full details of the computations associated with each metric can be found in the Fragstats documentation. Functions of this type can also be found in other packages such as the Pattern functions of SAGA, PASSaGE and the TEXTURE set of image transform operators in Idrisi.
|
Landscape metrics |
|
Area/density/edge metrics |
|
Patch Area |
|
Patch Perimeter |
|
Radius of Gyration |
|
Total (Class) Area |
|
Percentage of Landscape |
|
Number of Patches |
|
Patch Density |
|
Total Edge |
|
Edge Density |
|
Landscape Shape Index |
|
Normalized Landscape Shape Index |
|
Largest Patch Index |
|
Patch Area Distribution |
|
Radius of Gyration Distribution |
|
Total Area |
|
Number of Patches |
|
Patch Density |
|
Total Edge |
|
Edge Density |
|
Landscape Shape Index |
|
Largest Patch Index |
|
Patch Area Distribution |
|
Radius of Gyration Distribution |
|
Perimeter-Area Ratio |
|
Shape Index |
|
Linearity Index |
|
Related Circumscribing Circle |
|
Perimeter-Area Fractal |
|
Perimeter-Area Ratio Distribution |
|
Shape Index Distribution |
|
Fractal Index Distribution |
|
Linearity Index Distribution |
|
Related Circumscribing Circle Distribution |
|
Perimeter-Area Fractal Dimension |
|
Perimeter-Area Ratio Distribution |
|
Shape Index Distribution |
|
Fractal Index Distribution |
|
Linearity Index Distribution |
|
Related Circumscribing Circle Distribution |
|
Core area metrics |
|
Number of Core Areas |
|
Core Area Index |
|
Average Depth Index |
|
Maximum Depth Index |
|
Total Core Area |
|
Core Area Percentage of Landscape |
|
Number of Disjunct Core Areas |
|
Disjunct Core Area Density |
|
Core Area Distribution |
|
Disjunct Core Area Distribution |
|
Core Area Index Distribution |
|
Total Core Area |
|
Number of Disjunct Core Areas |
|
Disjunct Core Area Density |
|
Core Area Distribution |
|
Disjunct Core Area Distribution |
|
Core Area Index Distribution |
|
Proximity Index |
|
Similarity Index |
|
Euclidean Nearest-neighbor Distance |
|
Functional Nearest-neighbor Distance |
|
Proximity Index Distribution |
|
Similarity Index Distribution |
|
Euclidean Nearest-neighbor Distance Distribution |
|
Functional Nearest-neighbor Distance Distribution |
|
Proximity Index Distribution |
|
Similarity Index Distribution |
|
Euclidean Nearest-neighbor Distance Distribution |
|
Functional Nearest-neighbor Distance Distribution |
|
Contrast-Weighted Edge Density |
|
Total Edge Contrast Index |
|
Edge Contrast Index Distribution |
|
Contrast-Weighted Edge Density |
|
Total Edge Contrast Index |
|
Percentage of Like Adjacencies |
|
Clumpiness Index |
|
Aggregation Index |
|
Interspersion & Juxtaposition Index |
|
Landscape Division Index |
|
Splitting Index |
|
Effective Mesh Size |
|
Percentage of Like Adjacencies |
|
Contagion |
|
Aggregation Index |
|
Interspersion & Juxtaposition Index |
|
Landscape Division Index |
|
Splitting Index |
|
Effective Mesh Size |
|
Patch Cohesion Index |
|
Connectance Index |
|
Traversability Index |
|
Patch Cohesion Index |
|
Connectance Index |
|
Traversability Index |
|
Patch Richness Density |
|
Relative Patch Richness |
|
Shannon’s Diversity Index |
|
Simpson’s Diversity Index |
|
Modified Simpson’s Diversity Index |
|
Shannon’s Evenness Index |
|
Simpson’s Evenness Index |
|
Modified Simpson’s Evenness Index |
|
|