soil_grids: Global soil data

Description Usage Arguments Details Value References See Also Examples

Description

Download global soils data. The data are derived from the SoilGRIDS database. The data were aggregated and transformed to a longitude/latitude coordinate reference system with 30-second spatial resolution.

See https://www.isric.org/explore/soilgrids for more info

data license: CC-BY 4.0

Usage

1
soil_world(var, depth, stat="mean", name="", path)

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"

path

character. Path name where the data should be downloaded to

Details

var description unit
bdod Bulk density of the fine earth fraction kg dm-3
cec Cation Exchange Capacity of the soil cmol(+) kg-1
cfvo Vol. fraction of coarse fragments (> 2 mm) %
nitrogen Total nitrogen (N) g 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 g kg-1
ocd Organic carbon density kg m-3
ocs Organic carbon stocks kg m-2

Value

SpatRaster

References

Poggio L., de Sousa L.M., Batjes N.H., Heuvelink G.B.M., Kempen B., Ribeiro E., 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

For virtual access to the original data: soil_world_vsi For Africa: soil_af_isda, soil_af, soil_af_elements

Examples

1
ph <- soil_world(var="phh2o", depth=5, path=tmpdir())

geodata documentation built on Sept. 29, 2021, 9:07 a.m.