Sulfidic materials helper (USDA, KST 13ed Ch 3, p 49)

Pass when sulfidic materials (soft, dark, sulfide-rich) are present within max_top_cm. Proxy: sulfidic_s_pct >= 0.75 AND in a layer >= 15 cm thick.

Usage

sulfidic_materials_usda(pedon, max_top_cm = 100, min_thickness_cm = 15)

Arguments

pedon

A PedonRecord.

max_top_cm

Default 100.

min_thickness_cm

Default 15.

Value

A DiagnosticResult.