ED (landscape level)

This function allows you to calculate the edge density (meters per hectare) for the entire landscape in a categorical landscape in vector data format

Usage

vm_l_ed(landscape, count_boundary = TRUE)

Arguments

landscape

the input landscape image,

count_boundary

Include landscape boundary in edge length (default: TRUE)

Value

the returned calculated edge density is in column "value", and this function returns also some important information such as level and metric name, Moreover, class number and the "id" column, although both are "NA" here in the landscape level

Details

Edge density equals the sum of all edges divided by total landscape area. The count_boundary parameter is passed to vm_l_te.

Note: The default differs from landscapemetrics (default: FALSE) because vector polygon boundaries are explicit geometric features. Set count_boundary=FALSE for direct comparison with landscapemetrics results.

Examples

vm_l_ed(vector_landscape)
#> # A tibble: 1 × 5
#>   level     class id    metric value
#>   <chr>     <chr> <chr> <chr>  <dbl>
#> 1 landscape NA    NA    ed     5522.
vm_l_ed(vector_landscape, count_boundary = FALSE)
#> # A tibble: 1 × 5
#>   level     class id    metric value
#>   <chr>     <chr> <chr> <chr>  <dbl>
#> 1 landscape NA    NA    ed     4189.