
Calcaric material (WRB 2022 Ch 3.3.3): \>= 2% CaCO3 throughout the fine earth, primary carbonates from the parent material.
Source:R/diagnostics-materials-wrb-v033.R
calcaric_material.Rdv0.9.315: WRB 2022 Ch 3.3.3 (p. 86), the material "contains >= 2
carbonate equivalent" and "shows visible effervescence with 1 M HCl
throughout the fine earth". Each layer is read as the Calcaric qualifier
reads it (since v0.9.311): the CaCO3 equivalent decides where it is
recorded (caco3_pct >= min_caco3_pct), otherwise the field reaction
(effervescence_class: moderate or stronger is visible effervescence,
none and slight are not). Before v0.9.315 only caco3_pct was read,
so a profile described with the HCl reaction alone was never calcaric.
TRUE when some layer is calcaric material, FALSE when every layer is not,
NA otherwise.
Arguments
- pedon
A
PedonRecord.- min_caco3_pct
Numeric threshold or option (see Details).
Value
A DiagnosticResult recording whether the diagnostic is present, the qualifying layers, and the supporting evidence.