soil_af_isda: iSDA soil data for Africa

Description Usage Arguments Details Value References See Also Examples

View source: R/soil_isda.R

Description

Download soil data for Africa derived from the iDSA data set. The original data were aligned and aggregated to 30 arc-seconds (about 1 km2). The original spatial resolution was 30m.

For more info see:

https://envirometrix.nl/isdasoil-open-soil-data-for-africa/

https://zenodo.org/search?page=1&size=20&q=iSDAsoil

Usage

1
soil_af_isda(var, depth=20, error=FALSE, path) 

Arguments

var

character. The variables name, one of: "Al", "bdr", "clay", "C.tot", "Ca", "db.od", "eCEC.f", "Fe", "K", "Mg", "N.tot", "oc", "P", "pH.H2O", "sand", "silt", "S", "texture", "wpg2", "Zn".see Details

depth

numeric. One of 20 (for 0-20 cm) and 50 (for 20-50 cm)

error

logical. If TRUE the error estimates are returned

path

character. Path name where the data should be downloaded to

Details

var description unit
Al extractable aluminum mg kg-1
bdr bed rock depth cm
clay clay content %
C.tot total carbon kg-1
Ca extractable calcium mg kg-1
db.od bulk density kg m-3
eCEC.f effective cation exchange capacity cmol(+) kg-1
Fe extractable iron mg kg-1
K extractable potassium mg kg-1
Mg extractable magnesium mg kg-1
N.tot total organic nitrogen g kg-1
OC Organic Carbon g kg-1
P Phosphorus content mg kg-1
pH.H2O pH (H2O) -
sand Sand content %
silt Silt content %
S Extractable sulfer mg kg-1
texture texture class -
wpg2 stone content %
Zn Extractable zinc mg kg-1

Value

SpatRaster

References

Tomislav Hengl, Matthew A. E. Miller, Josip Križan, Keith D. Shepherd, Andrew Sila, Milan Kilibarda, Ognjen Antonijevic, Luka Glušica, Achim Dobermann, Stephan M. Haefele, Steve P. McGrath, Gifty E. Acquah, Jamie Collinson, Leandro Parente, Mohammadreza Sheykhmousa, Kazuki Saito, Jean-Martial Johnson, Jordan Chamberlin, Francis B. T. Silatsa, Martin Yemefack, John Wendt, Robert A. MacMillan, Ichsani Wheeler & Jonathan Crouch, 2021. African soil properties and nutrients mapped at 30 m spatial resolution using two-scale ensemble machine learning. Scientific Reports 11: 6130.

See Also

soil_af_elements, soil_af, soil_world

Examples

1
ph <- soil_af_isda("ph.h2o", path=tempdir())

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