Arenic / Grossarenic Subgroup helper (Spodosols) — arenic_subgroup

Pass when texture class (fine-earth fraction) is sandy throughout from the surface to the top of the spodic horizon AND the spodic top depth falls in [min_spodic_top, max_spodic_top].

Usage

arenic_subgroup_usda(pedon, min_spodic_top = 75, max_spodic_top = 125)

Arguments

pedon: A PedonRecord.
min_spodic_top: Default 75.
max_spodic_top: Default 125.

Value

A DiagnosticResult.

Details

Standard cuts: - "Arenic": 75-125 cm - "Grossarenic": 125+ cm (use min_spodic_top=125, max=Inf)