% Generated by roxygen2: do not edit by hand
% Please edit documentation in R/utils-fixtures.R
\name{make_luvisol_canonical}
\alias{make_luvisol_canonical}
\title{Build the canonical Luvisol fixture}
\usage{
make_luvisol_canonical()
}
\value{
A \code{\link{PedonRecord}}.
}
\description{
Synthetic temperate-zone Luvisol on loess: clear textural
differentiation, Bt with clay coatings, high base saturation, high-
activity clay. By construction:
\itemize{
  \item \code{\link{argic}}: PASSES on horizon Bt1 (clay increase
        from E (18\%) to Bt1 (35\%) gives ratio 1.94 in the 15-40\%
        band; thickness 25 cm; texture clay loam; no glossic
        features).
  \item \code{\link{ferralic}}: FAILS (CEC/clay ~ 45 cmol_c/kg clay
        in the Bt -- well above the 16 cmol_c/kg threshold).
  \item \code{\link{mollic}}: FAILS (A horizon: moist value 4 > 3,
        thickness 10 cm < 20 cm).
}
}
