This function allows to efficiently retrieve the name of the biomes and compute the corresponding area from Terrestrial Ecoregions of the World (TEOW) - World Wildlife Fund (WWF) for polygons. For each polygon, the name and area of the biomes (in hectare) is returned. The required resources for this indicator are:
Value
A function that returns a tibble with a column for name of the biomes and corresponding area (in ha).
Examples
# \dontshow{
mapme.biodiversity:::.copy_resource_dir(file.path(tempdir(), "mapme-data"))
# }
# \dontrun{
library(sf)
library(mapme.biodiversity)
outdir <- file.path(tempdir(), "mapme-data")
dir.create(outdir, showWarnings = FALSE)
mapme_options(
outdir = outdir,
verbose = FALSE
)
aoi <- system.file("extdata", "sierra_de_neiba_478140_2.gpkg",
package = "mapme.biodiversity"
) %>%
read_sf() %>%
get_resources(get_teow()) %>%
calc_indicators(calc_biome()) %>%
tidyr::unnest(biome)
aoi
#> Simple feature collection with 1 feature and 7 fields
#> Geometry type: POLYGON
#> Dimension: XY
#> Bounding box: xmin: -71.80933 ymin: 18.57668 xmax: -71.33201 ymax: 18.69931
#> Geodetic CRS: WGS 84
#> # A tibble: 1 × 8
#> WDPAID NAME DESIG_ENG ISO3 assetid biomes area geom
#> <dbl> <chr> <chr> <chr> <int> <chr> <dbl> <POLYGON [°]>
#> 1 478140 Sierra… National… DOM 1 Tropi… 18349. ((-71.76134 18.66333, -7…
# }