soil.legends: Standard color palettes for soil properties and classes

Description

Standard color palettes for soil properties and classes that can be used to display global soil data.

Usage

data(soil.legends)

Arguments

Format

Contains a list of color palettes (data frames with class names / break points, and cumulative probabilities) for:

ORCDRC: numeric; soil organic carbon content in permille
PHIHOX: numeric; pH index measured in water solution
PHIKCL: numeric; pH index measured in KCl solution
BLDFIE: numeric; bulk density (fine earth) in kg per cubic meter
CECSOL: numeric; Cation Exchange Capacity of soil
SNDPPT: numeric; weight percentage of the sand particles (0.05--2 mm)
SLTPPT: numeric; weight percentage of the silt particles (0.0002--0.05 mm)
CLYPPT: numeric; weight percentage of the clay particles (<0.0002 mm)
CRFVOL: numeric; volumetric percentage of coarse fragments (>2 mm)
TAXOUSDA: factor; Keys to Soil Taxonomy suborders
TAXGWRB: factor; World Reference Base groups
TAXNWRB: factor; World Reference Base legend for SoilGrids250m

References

Global Soil Information Facilities (http://gsif.isric.org)
SoilGrids automated global soil mapping system (https://soilgrids.org)

Examples

Run this code

# NOT RUN {
data(soil.legends)
pal <- soil.legends$ORCDRC$COLOR
names(pal) <- signif((soil.legends$ORCDRC$MAX + 
    soil.legends$ORCDRC$MIN)/2, 3)
pal
data(soil.vars)
soil.vars[soil.vars$varname=="ORCDRC",]
## make SAGA GIS palette:
makeSAGAlegend(x=as.factor(names(pal)), col_pal=pal, 
    filename="ORCDRC.txt")
# }