Protocalcic properties (WRB 2022 Ch 3.2.8)
Source:R/diagnostics-properties-wrb-v033.R
protocalcic_properties.RdAccumulations of secondary carbonates, visible when moist, that occupy
\>= 5% of the exposed area with masses, nodules, concretions or
filaments, or cover \>= 10% of the surfaces of aggregates, biopore
walls or the undersides of coarse fragments (WRB 2022 3.2.8, p. 78).
The test reads the recorded abundance of visible secondary carbonates,
secondary_carbonates_pct (or the visual carbonate_soft_pct
plus carbonate_hard_pct). Laboratory CaCO3 is not evidence of
secondary carbonates: with no abundance recorded, a layer with no CaCO3
(caco3_pct 0, or no effervescence) has no protocalcic properties
and any other layer is undecided. A k suffix with no abundance is
undecided too, unless options(soilKey.morphological_inference =
TRUE), where it is accepted as morphological evidence.
Arguments
- pedon
A
PedonRecord.- min_secondary_pct
Minimum visible secondary carbonates, % of the exposed area (default 5).
Value
A DiagnosticResult recording whether the diagnostic
is present, the qualifying layers, and the supporting evidence; the
per-layer status (TRUE / FALSE / NA) is in evidence$layer_status.