% Generated by roxygen2: do not edit by hand
% Please edit documentation in R/diagnostics-properties-wrb.R
\name{planic_features}
\alias{planic_features}
\title{Planic features (WRB 2022)}
\usage{
planic_features(pedon, min_ratio = 2, require_abrupt_boundary = TRUE)
}
\arguments{
\item{pedon}{A \code{\link{PedonRecord}}.}

\item{min_ratio}{Minimum clay ratio (default 2.0).}

\item{require_abrupt_boundary}{If TRUE (default), the upper horizon
must have \code{boundary_distinctness} matching "abrupt".}
}
\value{
A \code{\link{DiagnosticResult}}.
}
\description{
Tests whether the profile shows an abrupt textural change between
adjacent horizons (clay-doubling within 7.5 cm vertical distance,
typically at the E/Bt boundary). Diagnostic of Planosols.
}
\references{
IUSS Working Group WRB (2022), Chapter 5, Planosols.
}
