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Ferritic qualifier (fr): high free-Fe in fine earth

Source: R/qualifiers-wrb2022-v0963.R
qual_ferritic.Rd

WRB 2022 Ch 5 (Nitisols / Ferralsols): "Containing layers with >= 18% Fe2O3 (or 12.6% Fe) in fine earth, averaged over upper 100 cm or to a contact / petroplinthic / pisoplinthic / R."

Usage

qual_ferritic(pedon)

Arguments

pedon

A PedonRecord.

Details

Implementation: weighted mean of fe_dcb_pct (DCB-extractable Fe2O3, the canonical Fe-pool for Ferralic / Nitic chemistry) over the upper 100 cm.