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Gleysol RSG gate (WRB 2022 Ch 4, p 103)

Source: R/diagnostics-rsg-tier2.R
gleysol.Rd

WRB-canonical (multi-path):

  1. Layer \>= 25 cm starting \<= 40 cm with gleyic properties throughout AND reducing conditions in some parts of every sublayer; OR

  2. Mollic/umbric > 40 cm thick with reducing conditions some parts of every sublayer 40 cm below mineral surface to lower limit, AND directly underneath a layer \>= 10 cm with lower limit \>= 65 cm having gleyic properties + reducing conditions; OR

  3. Permanent saturation by water \<= 40 cm.

v0.3.4 enforces path 1 (the dominant path) and path 3 via designation (W / saturated marker). Path 2 is deferred (requires a depth-of- saturation column that's not standard).

Usage

gleysol(pedon, strict = NULL)

Arguments

pedon

A PedonRecord.

strict

Logical or NULL. When NULL (default) it resolves via getOption("soilKey.rsg_strict", FALSE). TRUE tightens path 1 and disables path 3.

Value

A DiagnosticResult recording whether the diagnostic is present, the qualifying layers, and the supporting evidence.

Tier-3 strict mode (v0.9.98)

With strict = TRUE the path-1 gleyic+reducing layer must start within the upper 25 cm (instead of 40 cm), and the path-3 designation-only fallback (a “W” / aquic marker) is disabled: strict mode requires measured gleyic and reducing evidence.