Calculate terrestrial ecoregions statistics (TEOW) based on WWF

This function allows to efficiently retrieve the name of the ecoregions 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 ecoregions (in hectare) is returned. The required resources for this indicator are:

• teow

Usage

calc_ecoregion()

Value

A function that returns a tibble with a column for name of the ecoregions 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_ecoregion()) %>%
  tidyr::unnest(ecoregion)
#> Resource 'teow' is already available.

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 ecoregions             area
#>    <dbl> <chr>           <chr>         <chr>   <int> <chr>                 <dbl>
#> 1 478140 Sierra de Neiba National Park DOM         1 Hispaniolan pine fo… 18349.
#> # ℹ 1 more variable: geom <POLYGON [°]>
# }