Retrieve and project soil bulk density data — soil_density

Downloads and projects SoilGrids' bulk density of the fine earth fraction (bdod) layers for specified depth intervals. See here for more details. This function project the original data at different depths intervals to the modelling reference grid.

Usage

soil_density_process(depths = NULL, env_file = ".env", n_cores = 6)

Arguments

depths: Character vector of depth intervals (e.g. c("0-5","5-15")). If NULL (default) all valid depths are processed. Valid depths are the SoilGrids BDOD standard horizons (cm): "0-5", "5-15", "15-30", "30-60", "60-100", and "100-200". Each depth string should omit the trailing cm.
env_file: Character. Path to the environment file containing paths to data sources. Defaults to .env.
n_cores: Integer. Number of CPU cores to use for parallel processing. Default: 6.

Value

(Invisibly) the path to the RData file containing the processed soil bulk density data.

References

SoilGrids: https://soilgrids.org
SoilGrids250m 2.0 - Bulk density
Poggio et al. (2021): SoilGrids 2.0: producing soil information for the globe with quantified spatial uncertainty. Soil. 10.5194/soil-7-217-2021

Author

Ahmed El-Gabbas