mangroves_area | R Documentation |
This function allows to efficiently calculate area of mangrove from Global Mangrove Watch - World Conservation Monitoring Centre (WCMC) for polygons. For each polygon, the area of the mangrove (in hectare) for desired year is returned.
calc_mangroves_area()
The required resources for this indicator are:
gmw
A function that returns an indicator tibble with mangroves as variable and corresponding areas (in ha) as value.
## Not run:
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", "shell_beach_protected_area_41057_B.gpkg",
package = "mapme.biodiversity"
) %>%
read_sf() %>%
get_resources(get_gmw(years = c(1996, 2016))) %>%
calc_indicators(calc_mangroves_area()) %>%
portfolio_long()
aoi
## End(Not run)
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