Limonic horizon (WRB 2022 Ch 3.1)

From Greek leimon = meadow. A subaqueous / wet-meadow horizon showing accumulation of secondary Fe/Mn (oxi)hydroxides from fluctuating redox cycles. Distinct from limnic material (Ch 3.3.10), which is the parent material; the limonic horizon is the soil horizon derived from such material plus subsequent pedogenesis.

Usage

limonic(pedon, min_thickness = 5, min_redox_pct = 5)

Arguments

pedon

A PedonRecord.

min_thickness

Numeric threshold or option (see Details).

min_redox_pct

Numeric threshold or option (see Details).

Details

v0.3.5 detection: redoximorphic_features_pct \>= 5 AND designation pattern Bm / Bjm / m as proxy for past meadow wetness.