Sombric Subgroup helper (Oxisols Sombri-) Pass when sombric horizon (humus illuviation in tropics) is present. v0.8: detects via 'sombric' designation OR a B horizon with V<=4 + V<=4 + chroma<=2 + OC>1 in 50-150 cm.
Source:R/diagnostics-oxisols-usda.R
sombric_subgroup_usda.RdSombric Subgroup helper (Oxisols Sombri-) Pass when sombric horizon (humus illuviation in tropics) is present. v0.8: detects via 'sombric' designation OR a B horizon with V<=4 + V<=4 + chroma<=2 + OC>1 in 50-150 cm.
Arguments
- pedon
A
PedonRecord.