Coarsic qualifier (cr): >= 70% coarse fragments by volume in upper 100 cm

WRB 2022 Ch 5: "Containing layers (in total >= 30 cm thick) with >= 70% by volume coarse fragments and/or technic hard material averaged over a depth of 100 cm from the soil surface."

Usage

qual_coarsic(pedon)

Arguments

pedon

A PedonRecord.

Details

Applies to: HISTOSOLS, TECHNOSOLS, CRYOSOLS, LEPTOSOLS, PODZOLS, PLINTHOSOLS, DURISOLS, GYPSISOLS, CALCISOLS.

Implementation: weighted mean of coarse_fragments_pct over the upper 100 cm; passes if \>= 70 (or NA if no measurements).