Fibric Subgroup helper (Haplohemists / Haplowassists / Sulfiwassists) Pass when fibric layers cumulative thickness >= 25 cm in control section below surface tier.

Fibric Subgroup helper (Haplohemists / Haplowassists / Sulfiwassists) Pass when fibric layers cumulative thickness >= 25 cm in control section below surface tier.

Usage

fibric_subgroup_usda(pedon, max_top_cm = 130)

Arguments

pedon

A PedonRecord.

max_top_cm

Numeric threshold or option (see Details).