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Fetch a SoilGrids 250 m stack over an AoI

Source: R/foundation_tiles.R
foundation_tile_source_soilgrids.Rd

Thin convenience wrapper around geodata::soil_world() that pulls the listed variables, crops them to the area of interest, and returns them as a single terra::SpatRaster with one layer per variable. SoilGrids is public and keyless so no authentication is required.

Usage

foundation_tile_source_soilgrids(
  variables = c("soc", "clay"),
  depth = "0-5cm",
  stat = "mean",
  aoi,
  path = tempdir()
)

Arguments

variables

Character vector of SoilGrids variable codes. Common choices: "soc" (organic carbon), "clay", "sand", "phh2o" (pH in water), "cec", "bdod" (bulk density), "nitrogen", "cfvo" (coarse fragments).

depth

Character, one of "0-5cm", "5-15cm", "15-30cm", "30-60cm", "60-100cm", "100-200cm".

stat

Character, one of "mean", "Q0.05", "Q0.5", "Q0.95".

aoi

A terra::SpatExtent, sf bounding box, or a length-4 numeric vector c(xmin, xmax, ymin, ymax) in WGS84 degrees.

path

Directory where geodata caches raw downloads (defaults to tempdir()).

Value

A terra::SpatRaster with one layer per requested variable, cropped to the AoI.