Skip to contents

Build the canonical Ferralsol fixture

Source: R/utils-fixtures.R
make_ferralsol_canonical.Rd

Synthetic but realistic Brazilian Latossolo Vermelho (Ferralsol per WRB 2022): deeply weathered, kaolinitic / oxidic, with the canonical "low-activity clay" signature. Diagnostic outcomes are deterministic by construction:

  • ferralic: PASSES on horizons Bw1 and Bw2 (CEC/clay = 8.3 cmol_c/kg clay; ECEC/clay = 3.6 cmol_c/kg clay; texture sandy clay / clay; thickness >= 30 cm).

  • argic: FAILS (gradual clay increase, all pairwise ratios < 1.2; absolute increment too small for the >= 40% rule).

  • mollic: FAILS (chroma > 3, BS < 50%, A horizon < 20 cm thick).

Usage

make_ferralsol_canonical()

Value

A PedonRecord.