% Generated by roxygen2: do not edit by hand
% Please edit documentation in R/diagnostics-horizons-wrb-v033.R
\name{albic}
\alias{albic}
\title{Albic horizon (WRB 2022)}
\usage{
albic(pedon, min_thickness = 1)
}
\arguments{
\item{pedon}{A \code{\link{PedonRecord}}.}

\item{min_thickness}{Minimum thickness in cm (default 1, per WRB
2022). The albic horizon has no canonical thickness gate; we
keep a token min so that fully-NA layers don't pass.}
}
\value{
A \code{\link{DiagnosticResult}}.
}
\description{
A bleached eluvial horizon -- claric material that has lost iron oxides
and/or organic matter due to clay migration, podzolization, or redox
under stagnant water. Diagnostic for parts of Podzols, Retisols and
Planosols qualifiers.
}
\details{
Sub-tests:
\itemize{
  \item \code{test_claric_munsell} -- Munsell criteria of claric
        material (Ch 3.3.4).
}
Designation pattern \code{E} or \code{Eg} also serves as positive
evidence when Munsell columns are missing (proxy path).
}
\references{
IUSS Working Group WRB (2022), Ch 3.1 -- Albic horizon.
}
