Humic Subgroup helper (Humic Duricryods / Humic Placocryods) Pass when spodic horizon has >= 6% OC in 10+ cm.
Source:R/diagnostics-spodosols-usda.R
humic_subgroup_usda.RdHumic Subgroup helper (Humic Duricryods / Humic Placocryods) Pass when spodic horizon has >= 6% OC in 10+ cm.
Arguments
- pedon
A
PedonRecord.