% Generated by roxygen2: do not edit by hand
% Please edit documentation in R/diagnostics-rsg-tier2.R
\name{planosol}
\alias{planosol}
\title{Planosol RSG gate (WRB 2022 Ch 4, p 107)}
\usage{
planosol(pedon, strict = NULL)
}
\arguments{
\item{pedon}{A \code{\link{PedonRecord}}.}

\item{strict}{Logical or \code{NULL}. When \code{NULL} (default) it
resolves via \code{getOption("soilKey.rsg_strict", FALSE)}.
\code{TRUE} disables the planic-features fallback.}
}
\value{
A \code{\link{DiagnosticResult}} recording whether the diagnostic is present, the qualifying layers, and the supporting evidence.
}
\description{
WRB-canonical: abrupt textural difference \\<= 75 cm AND, in 5 cm
directly above or below the abrupt textural difference, stagnic
properties (>= 50\% redoximorphic features) AND reducing conditions.
}
\details{
v0.3.4 enforces all three components. The 5-cm-window restriction is
relaxed to "the layer immediately above or below the abrupt textural
difference satisfies stagnic + reducing".
}
\section{Tier-3 strict mode (v0.9.98)}{

With \code{strict = TRUE} the \code{planic_features} fallback path is
disabled. Strict mode requires the canonical evidence -- an abrupt
textural difference \emph{plus} measured stagnic and reducing
conditions in the bracketing layer -- and will not accept the
simpler clay-doubling proxy on its own.
}

