Sulfuric horizon helper (USDA, KST 13ed Ch 3) — sulfuric_horizon

Pass when sulfidic_s_pct present in any horizon within max_top_cm (proxy: KST sulfuric horizon requires pH < 4.0 OR sulfidic materials AND certain mottle colors; this v0.8 uses sulfidic_s_pct >= 0.75 as proxy).

Usage

sulfuric_horizon_usda(pedon, max_top_cm = 100, min_s_pct = 0.75)

Arguments

pedon: A PedonRecord.
max_top_cm: Default 100.
min_s_pct: Default 0.75.

Value

A DiagnosticResult.