landscapemetrics (version 1.4.4)

lsm_l_te: TE (landscape level)

Description

Total edge (Area and Edge metric)

Usage

lsm_l_te(landscape, count_boundary)
# S3 method for RasterLayer
lsm_l_te(landscape, count_boundary = FALSE)
# S3 method for RasterStack
lsm_l_te(landscape, count_boundary = FALSE)
# S3 method for RasterBrick
lsm_l_te(landscape, count_boundary = FALSE)
# S3 method for stars
lsm_l_te(landscape, count_boundary = FALSE)
# S3 method for list
lsm_l_te(landscape, count_boundary = FALSE)

Arguments

landscape

Raster* Layer, Stack, Brick or a list of rasterLayers.

count_boundary

Include landscape boundary in edge length

Value

tibble

Details

$$TE = \sum \limits_{k = 1}^{m} e_{ik}$$ where \(e_{ik}\) is the edge lengths in meters. TE is an 'Area and edge metric'. Total edge includes all edges. It measures the configuration of the landscape because a highly fragmented landscape will have many edges. However, total edge is an absolute measure, making comparisons among landscapes with different total areas difficult. If cound_boundary = TRUE also edges to the landscape boundary are included.

Units

Meters

Range

TE >= 0

Behaviour

Equals TE = 0 if all cells are edge cells. Increases, without limit, as landscape becomes more fragmented

References

McGarigal, K., SA Cushman, and E Ene. 2012. FRAGSTATS v4: Spatial Pattern Analysis Program for Categorical and Continuous Maps. Computer software program produced by the authors at the University of Massachusetts, Amherst. Available at the following web site: http://www.umass.edu/landeco/research/fragstats/fragstats.html

See Also

lsm_p_perim lsm_l_te

Examples

# NOT RUN {
lsm_l_te(landscape)

# }