geodata (version 0.6-2)

soil_world_vsi: soil grids_vsi

Description

Virtually connect to the global soilgrids data. See https://www.isric.org/explore/soilgrids for more info.

data license: CC-BY 4.0

Usage

soil_world_vsi(var, depth, stat="mean", name="")

Value

SpatRaster

Arguments

var

character. Variables name. One of: "bdod", "cfvo", "clay", "nitrogen", "ocd", "ocs", "phh2o", "sand", "silt", "soc", "wrb". See Details

depth

numeric. One of 5, 15, 30, 60, 100, 200. This is shorthand for the following depth ranges: 0-5, 5-15, 15-30, 30-60, 60-100, 100-200 cm. Ignored if var="wrb"

stat

character. One of "mean", "uncertainty", "Q0.05", "Q0.5", "Q0.95". Ignored if var="wrb"

name

character. One of 'Acrisols', 'Albeluvisols', 'Alisols', 'Andosols', 'Arenosols', 'Calcisols', 'Cambisols', 'Chernozems', 'Cryosols', 'Durisols', 'Ferralsols', 'Fluvisols', 'Gleysols', 'Gypsisols', 'Histosols', 'Kastanozems', 'Leptosols', 'Lixisols', 'Luvisols', 'Nitisols', 'Phaeozems', 'Planosols', 'Plinthosols', 'Podzols', 'Regosols', 'Solonchaks', 'Solonetz', 'Stagnosols', 'Umbrisols', 'Vertisols'. Only used when var="wrb"

Details

The below table lists the variable names, a description, and the units of the variables. Note that these units are not standard units, and are different from the data for other soil data available through this package.

	var	description	unit
	bdod	Bulk density of the fine earth fraction	cg cm-3
	cec	Cation Exchange Capacity of the soil	mmol(+) kg-1
	cfvo	Vol. fraction of coarse fragments (> 2 mm)	‰
	nitrogen	Total nitrogen (N)	cg kg-1
	phh2o	pH (H2O)	-
	sand	Sand (> 0.05 mm) in fine earth	‰
	silt	Silt (0.002-0.05 mm) in fine earth	‰
	clay	Clay (< 0.002 mm) in fine earth	‰
	soc	Soil organic carbon in fine earth	dg kg-1
	ocd	Organic carbon density	hg m-3
	ocs	Organic carbon stocks	hg m-2

References

Poggio, L., de Sousa, L.M., Batjes, N.H., Heuvelink, G.B.M., Kempen, B., Ribeiro, E., and Rossiter, D., 2021. SoilGrids 2.0: producing soil information for the globe with quantified spatial uncertainty. Soil 7:217-240, 2021. doi:10.5194/soil-7-217-2021

See Also

soil_world to download these data at 30-seconds spatial resolution.

For Africa: soil_af_isda, soil_af, soil_af_elements

Examples

# \donttest{
ph <- soil_world_vsi(var="phh2o", depth=5)
ph
# }