% Generated by roxygen2: do not edit by hand
% Please edit documentation in R/diagnostics-horizons-wrb.R
\name{duric_horizon}
\alias{duric_horizon}
\title{Duric horizon (WRB 2022)}
\usage{
duric_horizon(pedon, min_thickness = 10, min_duripan_pct = 10)
}
\arguments{
\item{pedon}{A \code{\link{PedonRecord}}.}

\item{min_thickness}{Minimum thickness (cm; default 10 per WRB 2022).}

\item{min_duripan_pct}{Minimum duripan volume \% (default 10 per WRB
2022).}
}
\value{
A \code{\link{DiagnosticResult}}.

v0.3.1: thresholds aligned with WRB 2022 Ch 3.1.7 (10\%, 10 cm) --
previous v0.3 used 15\%/15 cm. Petroduric (cemented continuous
duripan) detection still deferred and will be added in v0.4.
}
\description{
Tests for >= 10\% volume of duripan nodules (Si-cemented) within a
horizon at least 10 cm thick. Diagnostic of Durisols.
}
\references{
IUSS Working Group WRB (2022), Chapter 3.1.7 -- Duric
horizon (p. 41).
}
