This function determines the soil class number based on the fraction of sand, clay, and silt

This function determines the soil class number based on the fraction of sand, clay, and silt

sclass(sandfrac, clayfrac)

Arguments

sandfrac, clayfrac

numeric vectors with values in range 0 to 1. Silt fraction is assumed to be the difference between (sand+clay) and 1

Value

vector of integers identifying textural class of each input layer. Possible values are 1 through 17; NB these are NOT the same class boundaries as the 12 USDA soil texture classes.

Examples

sclass(0.3,0.3)
#> [1] 8