| Abrupt textural difference (WRB 2022 Ch 3.2.1) | abrupt_textural_difference |
| Acric Subgroup helper (Andisols Acrudoxic / Acraquoxic / Acrustoxic / etc.) | acric_andisol_usda |
| Acric Oxisol Suborder helper (Acroperox/Acrudox/Acrustox/Acraquox) Pass when oxic or kandic horizon has ECEC < 1.5 cmol/kg clay AND pH (KCl) >= 5.0. | acric_oxisol_usda |
| Acrisol RSG diagnostic (WRB 2022) | acrisol |
| Aeolic material (WRB 2022 Ch 3.3.1) | aeolic_material |
| Aeric Subgroup (for Oxisols Aquox) - chroma-3 below epipedon Already defined for Aquods; here we add Oxisol-specific variant (any 10+ cm horizon below A with chroma >= 3 in 50%+ peds). | aeric_oxisol_usda |
| Aeric Subgroup helper (Aquods) Pass when ochric epipedon is present (vs. histic/umbric/etc). | aeric_subgroup_usda |
| Aluminum-rich spodic helper (Alaquods, Alorthods, KST Ch 14) | al_rich_spodic_usda |
| Albic-over-argillic qualifying (Albaquults) Pass when albic horizon overlies an argillic horizon directly. | albaquult_qualifying_usda |
| Albeluvic glossae (WRB 2022 Ch 3.2.2) | albeluvic_glossae |
| Albic horizon (WRB 2022) | albic |
| Albic horizon (USDA, KST 13ed Ch 3) | albic_horizon_usda |
| Albic Subgroup helper (Albaquultic / Albaquic) | albic_subgroup_usda |
| Albolls qualifier: mollic + albic + argillic. | alboll_qualifying_usda |
| Alfic Subgroup helper (Spodosols): argillic or kandic with BS >= 35% | alfic_subgroup_usda |
| Alfisol Order qualifier Pass when argillic OR kandic horizon present + BS >= 35% in some part. | alfisol_qualifying_usda |
| Alfisols (USDA Cap 5): argillic/kandic/natric horizon + base saturation >= 35% at the implicit reference depth. | alfisol_usda |
| Alic Subgroup helper (Andisols) Pass when al_kcl_cmol > 2.0 in a 10+ cm layer between 25 and 50 cm. | alic_andisol_usda |
| Alisol RSG diagnostic (WRB 2022) | alisol |
| Andic properties (WRB 2022) | andic_properties |
| Andic soil properties (USDA, KST 13ed Ch 3, p 32) | andic_soil_properties_usda |
| Andic Subgroup helper (USDA, KST 13ed) | andic_subgroup_usda |
| Andisol Order qualifier (USDA, KST 13ed Ch 3, p 7) | andisol_qualifying_usda |
| Andisols (USDA Cap 6): andic soil properties >= 60% of thickness. | andisol_usda |
| Andosol RSG gate (WRB 2022 Ch 4, p 104) | andosol |
| Anhydrous conditions (USDA Soil Taxonomy, 13th edition) | anhydrous_conditions_usda |
| Anionic Subgroup helper (Oxisols) | anionic_subgroup_usda |
| Annotate KSSL/NASIS pedons with a derived WRB Reference Soil Group | annotate_wrb_from_usda |
| Anthraquic horizon (WRB 2022): puddled-rice / paddy plough layer. v0.3.3 detects via designation pattern 'Apl|Ap|Hh'. | anthraquic |
| Anthric horizons (WRB 2022) | anthric_horizons |
| Aqualf Suborder qualifier (aquic conditions in argillic Alfisol). | aqualf_qualifying_usda |
| Aquands Suborder qualifier (Cap 6, p 117) Pass when histic OR aquic conditions in 40-50 cm with redox features. Simplified: histic OR aquic_conditions(max_top=50). | aquand_qualifying_usda |
| Aquandic Subgroup helper (Spodosols / others) Aquic + Andic. | aquandic_subgroup_usda |
| Aquent Suborder qualifier (Entisol with aquic conditions <50 cm). | aquent_qualifying_usda |
| Aquept Suborder qualifier | aquept_qualifying_usda |
| Aquerts qualifier (Vertisols with aquic conditions) Pass when aquic_conditions within 50 cm. | aquert_qualifying_usda |
| Aquic conditions (USDA Soil Taxonomy, 13th edition) | aquic_conditions_usda |
| Aquic Subgroup helper (within 100 cm of mineral soil surface) | aquic_subgroup_usda |
| Aquolls qualifier (aquic conditions in mollic). | aquoll_qualifying_usda |
| Aquult Suborder qualifier Pass when aquic_conditions within 50 cm. | aquult_qualifying_usda |
| Arenic / Grossarenic Subgroup helper (Spodosols) | arenic_subgroup_usda |
| Arenic texture (WRB 2022) | arenic_texture |
| Argic horizon (WRB 2022) | argic |
| Argic / argillic horizon via aqp::getArgillicBounds() | argic_aqp |
| Argic Aridisol helper - argillic-or-kandic in Argids/Cryids/etc. | argic_aridisol_usda |
| Argic Mollisol Suborder helper - delegates argillic_within_usda. | argic_mollisol_usda |
| Argic Subgroup helper (Endoaquods/Fragiaquods): argillic or kandic. Synonym of ultic at this level. Re-exported for naming clarity. | argic_subgroup_usda |
| Test whether a pedon's argic horizon has strong clay films | argic_with_strong_clay_films |
| Test for clay-illuviation evidence (KST 13ed Ch 3 p 4) | argillic_clay_films_test |
| Argillic-or-Kandic helper (USDA, used in Spodosols Subgroups) | argillic_or_kandic_usda |
| Argillic horizon (USDA Soil Taxonomy) | argillic_usda |
| Argillic horizon helper (USDA, KST 13ed Ch 3) | argillic_within_usda |
| Argissolos (SiBCS Cap 4, p 114; conceito Cap 3, p 86-88) | argissolo |
| Argissolos Acinzentados (SiBCS Cap 5) | argissolo_acinzentado |
| Argissolos Amarelos (SiBCS Cap 5) | argissolo_amarelo |
| Argissolos Bruno-Acinzentados (SiBCS Cap 5) | argissolo_bruno_acinzentado |
| Argissolos Vermelhos (SiBCS Cap 5) | argissolo_vermelho |
| Argissolos Vermelho-Amarelos (catch-all dos Argissolos) | argissolo_vermelho_amarelo |
| Aridisol Order qualifier (USDA, KST 13ed, Ch 2) Pass when the soil has aridic SMR AND any one of: argillic, natric, kandic, calcic, petrocalcic, gypsic, petrogypsic, salic, duripan, cambic, sulfuric horizon. Also requires no other prior order match. | aridisol_qualifying_usda |
| Aridisols (USDA Cap 7): aridic moisture regime + ochric/anthropic + subsurface diagnostic. v0.8 simplification: detected via aridity proxies (low EC OR salic OR caracter combinations) + non-mollic surface + low OC (no organic accumulation). | aridisol_usda |
| Artefacts (WRB 2022 Ch 3.3.2) | artefacts |
| Convert one or more PedonRecord objects to an aqp SoilProfileCollection | as_aqp |
| Atividade da fracao argila (SiBCS Cap 1, p 30) | atividade_argila_alta |
| Attach LUCAS 2018 Vis-NIR spectra to a list of PedonRecord objects | attach_lucas_spectra |
| Audit the strong-clay-films exclusion across a list of pedons | audit_argic_strong_films |
| Auto-detect PROJ_LIB and GDAL_DATA directories | auto_set_proj_env |
| List ESDB Raster Library attributes available at a given root | available_esdb_attributes |
| Horizonte B espodico (SiBCS Cap 2, p 62-65; v0.7) | B_espodico |
| Horizonte B incipiente (SiBCS Cap 2, p 59-61; v0.7) | B_incipiente |
| Horizonte B latossolico (SiBCS Cap 2, p 57-59; v0.7 strict) | B_latossolico |
| Horizonte B nitico (SiBCS Cap 2, p 61-62; v0.7) | B_nitico |
| Horizonte B planico (SiBCS Cap 2, p 65-66; v0.7) | B_planico |
| Horizonte B textural (SiBCS Cap 2, p 54-57; v0.7 strict) | B_textural |
| Batch robustness across many pedons | batch_robustness |
| Benchmark soilKey WRB predictions against AfSP ground truth | benchmark_afsp |
| Benchmark soilKey classifiers against BDsolos national reference labels | benchmark_bdsolos |
| Run the LUCAS Soil 2018 / ESDB WRB benchmark | benchmark_lucas_2018 |
| Run the soilKey performance benchmark | benchmark_performance |
| Benchmark soilKey SiBCS predictions against the Redape gold standard | benchmark_redape |
| Run a benchmark across one of the loaded pedon lists | benchmark_run_classification |
| Unified cross-dataset benchmark across SiBCS / WRB / USDA | benchmark_unified |
| Benchmark soilKey WRB predictions against a USDA-derived ground truth | benchmark_wrb_vs_usda |
| Calcaric material (WRB 2022 Ch 3.3.3): \>= 2% CaCO3 throughout the fine earth, primary carbonates from the parent material. | calcaric_material |
| Calcic horizon (WRB 2022) | calcic |
| Calcic horizon (USDA, delegates to WRB calcic). | calcic_horizon_usda |
| Calcic Subgroup helper - delegates to calcic_horizon_usda within 'max_top_cm'. | calcic_subgroup_usda |
| Cambic horizon (WRB 2022) | cambic |
| Cambic horizon via aqp::getCambicBounds() | cambic_aqp |
| Cambissolos (SiBCS Cap 4, p 113; conceito Cap 3, p 88-89) | cambissolo |
| Cambissolos Fluvicos (Cap 6): carater fluvico. | cambissolo_fluvico |
| Cambissolos Haplicos (catch-all). | cambissolo_haplico |
| Cambissolos Histicos (Cap 6): horizonte histico sem espessura para Organossolo. | cambissolo_histico |
| Cambissolos Humicos (Cap 6): horizonte A humico. | cambissolo_humico |
| Load a canonical reference dataset from soilKey or SoilTaxonomy | canonical_reference |
| Canonicalise a USDA Great Group label to a KST 13ed-compatible key | canonicalise_kst13ed_gg |
| Carater acrico (SiBCS Cap 1, p 31) | carater_acrico |
| Carater alitico (SiBCS Cap 1, p 32) | carater_alitico |
| Carater arenico (SiBCS Cap 5) | carater_arenico |
| Carater argiluvico (SiBCS Cap 1; Cap 6) | carater_argiluvico |
| Carater cambissolico (SiBCS Cap 14) | carater_cambissolico |
| Carater cambissolico (Argissolos - Cap 5) | carater_cambissolico_arg |
| Carater carbonatico (SiBCS Cap 1, p 33) | carater_carbonatico |
| Carater chernossolico (SiBCS Cap 5; A chernozemico + Ta alta) | carater_chernossolico |
| Carater coeso (SiBCS Cap 1, pp 32-33) | carater_coeso |
| Carater durico (SiBCS Cap 1) | carater_durico |
| Carater ebanico (SiBCS Cap 1; Cap 7 e Cap 17) | carater_ebanico |
| Carater espessarenico (SiBCS Cap 5) | carater_espessarenico |
| Carater espodico (SiBCS Cap 1, p 35; Cap 8) | carater_espodico |
| Carater B espodico profundo (SiBCS Cap 8) | carater_espodico_profundo |
| Carater eutrico (SiBCS Cap 1, p 35) | carater_eutrico |
| Carater ferrico (SiBCS Cap 1, p 35; Cap 5 e Cap 10) | carater_ferrico |
| Carater fluvico (SiBCS Cap 1, p 35-36): camadas estratificadas + distribuicao irregular de C organico. Reuso de fluvic_material (WRB). | carater_fluvico |
| Carater gleissolico (SiBCS Cap 5; horizonte_glei em posicao nao-Gleissolo) | carater_gleissolico |
| Carater hidromorfico (SiBCS Cap 8) | carater_hidromorfico |
| Carater hipocarbonatico (SiBCS Cap 1, p 33): CaCO3 entre 50 e 150 g/kg. | carater_hipocarbonatico |
| Carater espesso-humico (SiBCS Cap 5, p 119) | carater_humico_espesso |
| Carater latossolico (SiBCS Cap 5) | carater_latossolico |
| Carater leptico (SiBCS Cap 5; contato litico em 50-100 cm) | carater_leptico |
| Carater leptofragmentario (SiBCS Cap 5; Cr / fragmentary 50-100 cm) | carater_leptofragmentario |
| Carater luvissolico (SiBCS Cap 5; Ta + S alta) | carater_luvissolico |
| Carater nitossolico (SiBCS Cap 5) | carater_nitossolico |
| Carater palico (SiBCS Cap 11) | carater_palico |
| Carater perferrico (SiBCS Cap 1; Cap 6 CX Perferricos) | carater_perferrico |
| Carater petroplintico (SiBCS Cap 5) | carater_petroplintico |
| Carater placico (SiBCS Cap 5; horizonte placico cementado por Fe/Mn) | carater_placico |
| Carater planossolico (SiBCS Cap 5) | carater_planossolico |
| Carater plintico (SiBCS Cap 1, p 36): plintita >= 5% em quantidade insuficiente para horizonte plintico. | carater_plintico |
| Carater psamitico (SiBCS Cap 10) | carater_psamitico |
| Carater redoxico (SiBCS Cap 1, p 36-37): feicoes redoximorficas em quantidade pelo menos comum, dentro da secao de controle. 'epirredoxico' se dentro de 50 cm; 'endorredoxico' se 50-150 cm. | carater_redoxico |
| Carater retratil (SiBCS Cap 1, p 33) | carater_retratil |
| Carater rubrico (SiBCS Cap 1; Cap 10 Latossolos Brunos) | carater_rubrico |
| Carater salico (SiBCS Cap 1, p 38): CE >= 7 dS/m em alguma epoca. | carater_salico |
| Carater salino (SiBCS Cap 1, p 39): 4 <= CE < 7 dS/m. | carater_salino |
| Carater saprolitico (SiBCS Cap 5) | carater_saprolitico |
| Carater sodico (SiBCS Cap 1, p 39): saturacao por sodio (PST) >= 15%. | carater_sodico |
| Carater solodico (SiBCS Cap 1, p 39): PST entre 6% e < 15%. | carater_solodico |
| Carater sombrico (SiBCS Cap 1; Cap 5 PV) | carater_sombrico |
| Carater terrico (SiBCS Cap 14) | carater_terrico |
| Carater tionico (SiBCS Cap 9; Cap 1 thionic-related) | carater_tionico |
| Carater vertissolico (SiBCS Cap 6) | carater_vertissolico |
| Cerosidade quantitativa (SiBCS Cap 13, p 207; Cap 1) | cerosidade |
| Chernic horizon (WRB 2022): the cherozemic-style mollic with very high biological activity (worm holes, casts, coprolites). v0.3.3: delegates to mollic + worm_holes_pct >= 50 (proxy for "biological homogenization"). | chernic |
| Chernossolos (SiBCS Cap 4, p 113; conceito Cap 3, p 89-90) | chernossolo |
| Chernossolos Argiluvicos (Cap 7): B textural abaixo do A chernozemico. | chernossolo_argiluvico |
| Chernossolos Ebanicos (Cap 7): caracter ebanico em B. v0.7.1: detecta via Munsell em B - hue 7.5YR ou mais amarelo: V<4 + C<3 umido; OR hue mais vermelho 7.5YR: preto/cinza muito escuro. | chernossolo_ebanico |
| Chernossolos Haplicos (catch-all). | chernossolo_haplico |
| Chernossolos Rendzicos (Cap 7): A chernozemico + (calcico/petrocalcico OR carater carbonatico). | chernossolo_rendzico |
| Chernozem RSG diagnostic (WRB 2022) | chernozem |
| Chernozem RSG gate (strengthened, WRB 2022 Ch 4, p 111) | chernozem_strict |
| Claric material (WRB 2022 Ch 3.3.4): light-coloured fine earth with Munsell criteria. | claric_material |
| Robustness of classification under input perturbation | classification_robustness |
| ClassificationResult: structured outcome of running a key | ClassificationResult |
| Classify a pedon across all three taxonomic systems | classify_all |
| Classify a soil by spectral similarity to OSSL reference profiles | classify_by_spectral_neighbours |
| Build a fully-classified `PedonRecord` from documents in one call | classify_from_documents |
| Classifica um pedon segundo o SiBCS 5a edicao (1o + 2o + 3o + 4o niveis) | classify_sibcs |
| Classifica um perfil no 5o nivel categorico do SiBCS (Familia) | classify_sibcs_familia |
| Classify a pedon under USDA Soil Taxonomy (13th edition) | classify_usda |
| Classify a PedonRecord via Embrapa's SmartSolosExpert REST API | classify_via_smartsolos_api |
| Classify a pedon with the engine chosen by `pick_engine()` | classify_with_engine_heuristic |
| Classify a pedon under WRB 2022 | classify_wrb2022 |
| Clear the in-memory KST13 cache | clear_kst13_cache |
| Clear the soilKey OSSL cache | clear_ossl_cache |
| Combine multiple spatial priors via weighted geometric mean | combine_priors |
| Side-by-side comparison of soilKey vs aqp diagnostic engines | compare_engines |
| Cross-validate the local SiBCS classifier against the SmartSolosExpert API | compare_smartsolos |
| Ki (silica:alumina molar) - SiBCS Cap 1, p 32 | compute_ki |
| Kr (silica:sesquioxidos molar) - SiBCS Cap 1, p 32 | compute_kr |
| Contato litico (SiBCS Cap 1, p 40): rocha continua dura. Reuso de 'continuous_rock' via designacao R / Cr. | contato_litico |
| Contato litico fragmentario (SiBCS Cap 1, p 40): rocha fragmentada. | contato_litico_fragmentario |
| Continuous rock (WRB 2022 Ch 3.2.5) | continuous_rock |
| Cryic conditions (WRB 2022) | cryic_conditions |
| Cryoturbation (USDA Soil Taxonomy, 13th edition) | cryoturbation_usda |
| Cumulic Subgroup helper (Mollorthels / Umbrorthels) | cumulic_subgroup_usda |
| Densiaquept qualifying (densic contact within 100 cm) | densiaquept_qualifying_usda |
| DiagnosticResult: structured outcome of a diagnostic test | DiagnosticResult |
| Solo distrofico (SiBCS Cap 1, p 30) | distrofico |
| Dolomitic material (WRB 2022 Ch 3.3.5): \>= 2% Mg-rich carbonate, CaCO3/MgCO3 < 1.5. v0.3.3: detects via designation pattern 'kdo|do|magn' as proxy when ratio data missing. | dolomitic_material |
| Download the BDsolos consulta-publica CSV (experimental, requires chromote) | download_bdsolos |
| Download one or more soilKey lazy-fetch caches from GitHub Release | download_extdata_cache |
| Download an OSSL subset and return an `ossl_library` artefact | download_ossl_subset |
| Download an OSSL subset and attach WRB / SiBCS / USDA labels | download_ossl_subset_with_labels |
| Download the curated Redape GeoTab dataset (Vaz et al 2023) | download_redape_dataset |
| Duric horizon (WRB 2022) | duric_horizon |
| Duric Subgroup helper (USDA Spodosols) | duric_subgroup_usda |
| Duripa (SiBCS Cap 2, p 74; v0.7) | duripa |
| Duripan (USDA, KST 13ed Ch 3, pp 36-37) | duripan_usda |
| Dystric Subgroup helper (Vertisols Dystr*) Pass when BS (NH4OAc) < 50% in some part of the upper 100 cm. | dystric_subgroup_usda |
| Entic Subgroup helper (Spodosols) | entic_subgroup_usda |
| Entisols (USDA Cap 8): catch-all for soils that don't match any other Order. Always passes. | entisol_usda |
| Episaturation helper (USDA, KST 13ed Ch 3, p 41) Pass when aquic conditions PLUS perched water (saturation type "episaturation"). | episaturation_usda |
| Espodossolos (SiBCS Cap 4, p 112; conceito Cap 3, p 90-91) | espodossolo |
| Espodossolos Ferri-humiluvicos (Cap 8): B espodico tipo Bhs OR catch-all dos espodossolos. | espodossolo_ferri_humiluvico |
| Espodossolos Ferriluvicos (Cap 8): B espodico tipo Bs (Fe + Al, baixo OC iluvial). | espodossolo_ferriluvico |
| Espodossolos Humiluvicos (Cap 8): B espodico tipo Bh (org. + Al, pouco/sem Fe). | espodossolo_humiluvico |
| Eutric Inceptisol Suborder helper (Eutrudepts) Pass when BS (NH4OAc) >= 60% in some part of upper 75 cm. | eutric_inceptisol_usda |
| Eutric Oxisol Suborder helper (Eutroperox/Eutrudox/etc.) Pass when BS (NH4OAc) >= 35% in all layers within 125 cm. | eutric_oxisol_usda |
| Eutric Subgroup helper (Andisols) Pass when base_saturation (sum-of-cations) >= 50% in some part. | eutric_subgroup_usda |
| Solo eutrofico (SiBCS Cap 1, p 30) | eutrofico |
| Evaluate the test block of a single RSG | evaluate_rsg_tests |
| Extract horizons from a soil description PDF | extract_horizons_from_pdf |
| Extract Munsell color from a profile photo | extract_munsell_from_photo |
| Extract site metadata from a field-sheet image | extract_site_from_fieldsheet |
| Familia: propriedades andicas (Cap 1, p 42-43) | familia_andico |
| Familia: subgrupamento de atividade da fracao argila (Cap 18, p 287) | familia_atividade_argila |
| Familia: constituicao esqueletica (Cap 1, p 48) | familia_constituicao_esqueletica |
| Familia: distribuicao de cascalhos no perfil (Cap 1, p 47-48) | familia_distribuicao_cascalhos |
| Familia: grupamento textural (Cap 1, p 46) | familia_grupamento_textural |
| Constroi label textual de Familia a partir de 'classify_sibcs_familia' | familia_label |
| Familia: mineralogia da fracao areia (Cap 18, p 286) | familia_mineralogia_areia |
| Familia: mineralogia da fracao argila (geral, nao-Latossolos) | familia_mineralogia_argila_geral |
| Familia: mineralogia da fracao argila para Latossolos (Cap 18, p 286-287) | familia_mineralogia_argila_latossolo |
| Familia: espessura > 100 cm de material organico em Organossolos (Cap 18, p 287) | familia_organossolo_espessura |
| Familia: lenhosidade em Organossolos (Cap 18, p 288) | familia_organossolo_lenhosidade |
| Familia: material subjacente em Organossolos (Cap 18, p 287) | familia_organossolo_material_subjacente |
| Familia: teor de oxidos de ferro (Cap 1, p 42) | familia_oxidos_ferro |
| Familia: prefixo de profundidade epi-/meso-/endo- (Cap 18, p 284-285) | familia_prefixo_profundidade |
| Familia: saturacao por aluminio - "alico" (Cap 18, p 285) | familia_saturacao_aluminio |
| Familia: saturacao por bases (Cap 18, p 285) | familia_saturacao_bases |
| Familia: subgrupamento textural (Cap 18, p 283; em validacao) | familia_subgrupamento_textural |
| Familia: tipo de horizonte diagnostico superficial (Cap 2) | familia_tipo_horizonte_superficial |
| Classe S4-like para atributos de Familia (5o nivel SiBCS) | FamilyAttribute |
| Curated index of FEBR datasets that carry Munsell colors | febr_index_munsell |
| Ferralic horizon (WRB 2022) | ferralic |
| Ferralsol RSG gate (WRB 2022 Ch 4, p 110) | ferralsol |
| Ferric horizon (WRB 2022) | ferric |
| Ferric Subgroup helper (Ferrudalfs) Pass when iron-rich (fe_dcb_pct >= 4%) horizon present in B. | ferric_subgroup_usda |
| Fibric_predominant_usda: Fibrists Suborder qualifier | fibric_predominant_usda |
| Fibric Subgroup helper (Haplohemists / Haplowassists / Sulfiwassists) Pass when fibric layers cumulative thickness >= 25 cm in control section below surface tier. | fibric_subgroup_usda |
| Material organico fibrico (SiBCS Cap 14) | fibrico |
| Fill missing soil attributes from spectra via OSSL | fill_from_spectra |
| Fill missing Munsell colors on a PedonRecord from Vis-NIR spectra | fill_munsell_from_spectra |
| Fluvaquentic Subgroup helper (irregular OC decrease + aquic) | fluvaquentic_usda |
| Fluvent Suborder qualifier (irregular OC decrease in 25-125 cm, OR layered alluvial designation). | fluvent_qualifying_usda |
| Fluventic Subgroup helper (irregular OC decrease, NO aquic req.) | fluventic_usda |
| Fluvic material (WRB 2022) | fluvic_material |
| Folists Suborder qualifier (KST 13ed, Ch 10, p 200) | folist_qualifying_usda |
| Folistic epipedon (USDA Soil Taxonomy, 13th edition) | folistic_epipedon_usda |
| Folistic Subgroup helper (folistic_epipedon present) | folistic_subgroup_usda |
| Format a WRB 2022 soil name with qualifiers | format_wrb_name |
| Fragic horizon (WRB 2022): a high-bulk-density horizon with restricted rooting. v0.3.3: detects via bulk_density_g_cm3 >= 1.65 AND structure grade massive/very firm OR designation pattern 'x'/'Bx'. | fragic |
| Fragipa (SiBCS Cap 2, p 73-74; v0.7) | fragipa |
| Fragipan (USDA, KST 13ed Ch 3, p 38) | fragipan_usda |
| Frasiwassists Subgroup helper (Wassists) | frasic_qualifying_usda |
| Convert an aqp SoilProfileCollection back to a list of PedonRecord | from_aqp |
| Fulvic Andisols: similar to melanic but with melanic_index > 1.70 (more humic acid). v0.8: detected via OC >= 6 in cumulative 30 cm but WITHOUT melanic_epipedon (since melanic requires index <= 1.70). | fulvic_andisol_usda |
| Gelisols (USDA Cap 9): gelic conditions / permafrost. | gelisol_usda |
| Glacic layer (USDA Soil Taxonomy, 13th edition) | glacic_layer_usda |
| Gleissolos (SiBCS Cap 4, p 112-113; conceito Cap 3, p 91-93) | gleissolo |
| Gleissolos Haplicos (catch-all). | gleissolo_haplico |
| Gleissolos Melanicos (Cap 9): horizonte hístico < 40 cm OR A humico, proeminente, chernozemico. | gleissolo_melanico |
| Gleissolos Salicos (Cap 9): caracter salico em < 100 cm. | gleissolo_salico |
| Gleissolos Tiomorficos (Cap 9): materiais sulfidricos OR horizonte sulfurico em < 100 cm. | gleissolo_tiomorfico |
| Gleyic properties (WRB 2022) | gleyic_properties |
| Gleysol RSG gate (WRB 2022 Ch 4, p 103) | gleysol |
| Glossic Subgroup helper (Glossaqualfs, Glossocryalfs, Glossudalfs) Pass when interfingering of albic materials into argillic horizon is detected. v0.8 proxy: albic + argillic + lateral chroma <= 2 on argillic boundary. | glossic_subgroup_usda |
| Default-value-for-NULL operator | %||% grapes-or-or-grapes |
| Grossarenic Subgroup helper: sandy throughout, spodic >= 125 cm. | grossarenic_subgroup_usda |
| Default GlobalSoilMap depth intervals (cm) | GSM_DEPTHS |
| Gypsic horizon (WRB 2022) | gypsic |
| Gypsic horizon (USDA, delegates to WRB gypsic). | gypsic_horizon_usda |
| Gypsic Subgroup helper - delegates to gypsic_horizon_usda. | gypsic_subgroup_usda |
| Gypsiric material (WRB 2022 Ch 3.3.7): \>= 5% gypsum that is primary (not secondary). Without a "secondary fraction" schema column, v0.3.3 treats any layer with caso4_pct >= 5 as gypsiric unless it explicitly carries gypsic-horizon designation. | gypsiric_material |
| Halic helper for Halaquepts Pass when EC >= 8 dS/m within 100 cm. | halaquept_qualifying_usda |
| Halic Subgroup helper (Haplosaprists) | halic_subgroup_usda |
| Harmonise pedons to GlobalSoilMap depth intervals | harmonize_to_gsm |
| Hemic Subgroup helper | hemic_subgroup_usda |
| Material organico hemico (SiBCS Cap 14) | hemico |
| Histels Suborder qualifier (USDA, KST 13ed) | histel_qualifying_usda |
| Histic epipedon (USDA Soil Taxonomy, 13th edition) | histic_epipedon_usda |
| Histic horizon (WRB 2022) | histic_horizon |
| Histic Subgroup helper (in Spodosols, Aquods) Pass when histic_epipedon_usda passes. | histic_subgroup_usda |
| Histosols Order qualifier (USDA, KST 13ed, Ch 2, p 7) | histosol_qualifying_usda |
| Histosols (USDA Cap 10): organic materials >= 40 cm in 0-100. Refined v0.8.4 - now uses histosol_qualifying_usda (40 cm threshold) instead of WRB histic_horizon (10 cm). | histosol_usda |
| Horizonte A antropico (SiBCS) (SiBCS Cap 2, p 53) | horizonte_A_antropico |
| Horizonte A chernozemico (SiBCS Cap 2, p 50-51) | horizonte_A_chernozemico |
| Horizonte A fraco (SiBCS Cap 2, p 53): cor clara + estrutura grao simples/macica + OC < 6 g/kg; OR espessura < 5 cm. | horizonte_A_fraco |
| Horizonte A humico (SiBCS Cap 2, p 51-52) | horizonte_A_humico |
| Horizonte A moderado (SiBCS Cap 2, p 53-54): catch-all. Returns TRUE quando o solo tem horizonte superficial mas nao se enquadra nas demais classes diagnosticas superficiais. | horizonte_A_moderado |
| Horizonte A proeminente (SiBCS Cap 2, p 52-53) | horizonte_A_proeminente |
| Horizonte calcico (SiBCS Cap 2, p 71-72; v0.7) | horizonte_calcico |
| Horizonte concrecionario (SiBCS Cap 2, p 68-69; v0.7) | horizonte_concrecionario |
| Horizonte E albico (SiBCS Cap 2, p 66-67; v0.7) | horizonte_E_albico |
| Horizonte glei (SiBCS Cap 2, p 69-71; v0.7) | horizonte_glei |
| Horizonte histico (SiBCS Cap 2, p 49-50) | horizonte_histico |
| Horizonte litoplintico (SiBCS Cap 2, p 69; v0.7) | horizonte_litoplintico |
| Horizonte petrocalcico (SiBCS Cap 2, p 72; v0.7) | horizonte_petrocalcico |
| Horizonte plintico (SiBCS Cap 2, p 67-68; v0.7) | horizonte_plintico |
| Horizonte sulfurico (SiBCS Cap 2, p 72-73; v0.7) | horizonte_sulfurico |
| Horizonte vertico (SiBCS Cap 2, p 73; v0.7) | horizonte_vertico |
| Hortic horizon (WRB 2022): garden / kitchen-midden topsoil. Diagnostic criteria: thickness \>= 20 cm, dark colour (mollic-like), high P (Mehlich-3 P >= 100 mg/kg or P2O5_1pct_citric >= 175 mg/kg), high SOC. | hortic |
| Humic Andisols Subgroup helper Pass when mollic OR umbric epipedon present. | humic_andisol_usda |
| Humic Inceptisol Suborder helper (Hum*) Pass when umbric or mollic epipedon present + thick (>= 25 cm). | humic_inceptisol_usda |
| Humic-Oxisol Subgroup helper Pass when cumulative organic carbon mass is >= 16 kg/m2 between surface and 100 cm (computed as SUM(OC% * bulk_density * dz)). v0.8 proxy: uses default bulk_density 1.0 g/cm3 if unavailable. | humic_oxisol_usda |
| Humic-spodic Suborder/GG check (>= 6% OC in 10+ cm of spodic) | humic_spodic_usda |
| Humic Subgroup helper (Humic Duricryods / Humic Placocryods) Pass when spodic horizon has >= 6% OC in 10+ cm. | humic_subgroup_usda |
| Humilluvic Subgroup helper (Luvihemists) | humilluvic_subgroup_usda |
| Humult Suborder qualifier (Ultisols with thick humus accumulation) Pass when 0.9% OC weighted average in 0-15 cm AND/OR organic carbon mass >= 12 kg/m2 in 0-100 cm (proxy via humic_oxisol_usda with lower threshold). | humult_qualifying_usda |
| Hydragric horizon (WRB 2022): subsoil hydric horizon under anthraquic. v0.3.3 detects via designation pattern 'Bg|Brg' immediately below an anthraquic-like topsoil. | hydragric |
| Hydric Aquent helper (Hydraquents) Pass when surface 0-50 has high water content (n value high). v0.8 proxy: water_content_1500kpa >= 80% in surface. | hydraquent_qualifying_usda |
| Hydric (Andisols): 1500 kPa water retention >= 70% on undried samples throughout a 35+ cm layer within 100 cm. | hydric_andisol_usda |
| Hydric Subgroup helper (Histosols Cryofibrists / Sphagnofibrists / etc.) | hydric_subgroup_usda |
| Hypersulfidic material (WRB 2022 Ch 3.3.8): \>= 0.01% inorganic sulfidic S, pH \>= 4, capable of severe acidification on aerobic incubation. | hypersulfidic_material |
| Hyposulfidic material (WRB 2022 Ch 3.3.9): same S and pH as hypersulfidic but does NOT consist of hypersulfidic (i.e. not capable of severe acidification). v0.3.3: returns sulfidic layers that don't meet hypersulfidic. | hyposulfidic_material |
| Inceptisol Order qualifier Pass when a cambic horizon is present (no argillic, no spodic, no mollic, etc. - enforced by prior order exclusion). | inceptisol_qualifying_usda |
| Inceptisols (USDA Cap 11): cambic horizon (or several alternative subsurface diagnostics: folistic/histic/mollic with thin sub, salic, sodium-affected sub). | inceptisol_usda |
| Diagnostic inspection of a BDsolos CSV before loading | inspect_bdsolos_csv |
| Irragric horizon (WRB 2022): topsoil thickened by irrigation deposits. v0.3.3: thickness >= 20 cm + sediment-derived structure proxied via designation 'Apk|Apg|Au'. | irragric |
| Kandic horizon (USDA, KST 13ed Ch 3, p 45) | kandic_horizon_usda |
| Kandic Suborder helper for Oxisols (Kandiperox/Kandiudox/Kandiustox) Delegates to kandic_horizon_usda. | kandic_oxisol_usda |
| Kanhapl qualifying helper (Kanhapludults / Kanhaplustults / etc.) Pass when kandic horizon present BUT NOT meeting Pale criteria (i.e. younger / less developed kandic). | kanhapl_qualifying_usda |
| Kastanozem RSG diagnostic (WRB 2022) | kastanozem |
| Kastanozem RSG gate (strengthened, WRB 2022 Ch 4, p 112) | kastanozem_strict |
| Keys to Soil Taxonomy 13th edition canonical reference | kst13_canonical |
| Load the canonical KST 13ed code -> taxon-name lookup table | kst13_codes |
| Load the canonical KST 13ed criteria for a single taxon code | kst13_criteria |
| Lamellic Subgroup helper (Spodosols Haplorthods) | lamellic_subgroup_usda |
| Latossolos (SiBCS Cap 4, p 113; conceito Cap 3, p 93-94) | latossolo |
| Latossolos Amarelos (Cap 10): matiz \>= 7.5YR (mais amarelo). | latossolo_amarelo |
| Latossolos Brunos (Cap 10): matiz \>= 7.5YR + valor \<= 4 + croma \<= 5 (cores brunadas) OR caracter retratil. | latossolo_bruno |
| Ki/Kr para Latossolos (SiBCS Cap 10, p 173-176) | latossolo_ki_kr |
| Latossolos Vermelhos (Cap 10): matiz \<= 2.5YR (mais vermelho). | latossolo_vermelho |
| Latossolos Vermelho-Amarelos (catch-all). | latossolo_vermelho_amarelo |
| Leptic features (WRB 2022) | leptic_features |
| Limnic material (WRB 2022 Ch 3.3.10): subaquatic deposits (coprogenous earth, diatomaceous earth, marl, gyttja). v0.3.3: detects via 'rock_origin %in% c("lacustrine", "marine")' or designation pattern. | limnic_material |
| Limnic Subgroup helper (Histels) | limnic_usda |
| Limonic horizon (WRB 2022 Ch 3.1) | limonic |
| Lithic contact within X cm of the surface (USDA Subgroup helper) | lithic_contact_usda |
| Lithic discontinuity (WRB 2022 Ch 3.2.7) | lithic_discontinuity |
| Lixisol RSG diagnostic (WRB 2022) | lixisol |
| Load Africa Soil Profiles (AfSP) v1.2 as PedonRecord objects | load_afsp_pedons |
| Load the bundled AfSP stratified sample (v0.9.77) | load_afsp_sample |
| Load a BDsolos CSV export as a list of PedonRecord objects | load_bdsolos_csv |
| Load Embrapa dadosolos pedons with reference SiBCS classification | load_embrapa_pedons |
| Load the Embrapa FEBR superconjunto into a list of PedonRecords | load_febr_pedons |
| Load the bundled KSSL + NASIS morphological-enriched sample (v0.9.75) | load_kssl_nasis_sample |
| Load NCSS / KSSL pedons with reference USDA Soil Taxonomy classification | load_kssl_pedons |
| Load KSSL / NCSS pedons from the ncss_labdata GeoPackage | load_kssl_pedons_gpkg |
| Load KSSL pedons enriched with NASIS morphology | load_kssl_pedons_with_nasis |
| Load the bundled KSSL/NCSS lab-data sample (v0.9.74) | load_kssl_sample |
| Load EU-LUCAS / ESDB pedons with reference WRB classification | load_lucas_pedons |
| Load the LUCAS Soil 2018 Topsoil release as a list of PedonRecord objects | load_lucas_soil_2018 |
| Load curated soil profiles from the Embrapa Redape GeoTab dataset | load_redape_pedons |
| Load a soilKey rule set (YAML) | load_rules |
| Load the bundled WoSIS South-America sample | load_wosis_sample |
| Load the bundled WoSIS stratified RSG-balanced sample (v0.9.73) | load_wosis_stratified_sample |
| Look up an ESDB raster value at WGS84 coordinates | lookup_esdb |
| Look up a MapBiomas Solos raster value at WGS84 coordinates | lookup_mapbiomas_solos |
| Look up a SoilGrids 250m soil property at WGS84 coordinates | lookup_soilgrids |
| Luvisol RSG diagnostic (WRB 2022) | luvisol |
| Luvissolos (SiBCS Cap 4, p 113; conceito Cap 3, p 95-96) | luvissolo |
| Luvissolos Cromicos (Cap 11): caracter cromico (cores fortes em B). Aplicado pela presenca de Munsell vermelho-amarelado em B com cromas altos. | luvissolo_cromico |
| Luvissolos Haplicos (catch-all). | luvissolo_haplico |
| Build the canonical Acrisol fixture | make_acrisol_canonical |
| Build the canonical Alisol fixture | make_alisol_canonical |
| Build the canonical Andosol fixture | make_andosol_canonical |
| Build the canonical Anthrosol fixture | make_anthrosol_canonical |
| Build the canonical Arenosol fixture | make_arenosol_canonical |
| Perfil canonico de Argissolo (SiBCS 5a ed., Cap 5) | make_argissolo_canonical |
| Build the canonical Calcisol fixture | make_calcisol_canonical |
| Build the canonical Cambisol fixture | make_cambisol_canonical |
| Perfil canonico de Cambissolo (SiBCS 5a ed., Cap 6) | make_cambissolo_canonical |
| Perfil canonico de Chernossolo (SiBCS 5a ed., Cap 7) | make_chernossolo_canonical |
| Build the canonical Chernozem fixture | make_chernozem_canonical |
| Build the canonical Cryosol fixture | make_cryosol_canonical |
| Build the canonical Durisol fixture | make_durisol_canonical |
| Build an empty horizons data.table with the canonical schema | make_empty_horizons |
| Perfil canonico de Espodossolo (SiBCS 5a ed., Cap 8) | make_espodossolo_canonical |
| Build the canonical Ferralsol fixture | make_ferralsol_canonical |
| Build the canonical Fluvisol fixture | make_fluvisol_canonical |
| Perfil canonico de Gleissolo (SiBCS 5a ed., Cap 9) | make_gleissolo_canonical |
| Build the canonical Gleysol fixture | make_gleysol_canonical |
| Build the canonical Gypsisol fixture | make_gypsisol_canonical |
| Build the canonical Histosol fixture | make_histosol_canonical |
| Build the canonical Kastanozem fixture | make_kastanozem_canonical |
| Perfil canonico de Latossolo (SiBCS 5a ed., Cap 10) | make_latossolo_canonical |
| Build the canonical Leptosol fixture | make_leptosol_canonical |
| Build the canonical Lixisol fixture | make_lixisol_canonical |
| Build the canonical Luvisol fixture | make_luvisol_canonical |
| Perfil canonico de Luvissolo (SiBCS 5a ed., Cap 11) | make_luvissolo_canonical |
| Perfil canonico de Neossolo Litolico (SiBCS 5a ed., Cap 12) | make_neossolo_canonical |
| Build the canonical Nitisol fixture | make_nitisol_canonical |
| Perfil canonico de Nitossolo Vermelho (SiBCS 5a ed., Cap 13) | make_nitossolo_canonical |
| Perfil canonico de Organossolo (SiBCS 5a ed., Cap 14) | make_organossolo_canonical |
| Build the canonical Phaeozem fixture | make_phaeozem_canonical |
| Build the canonical Planosol fixture | make_planosol_canonical |
| Perfil canonico de Planossolo (SiBCS 5a ed., Cap 15) | make_planossolo_canonical |
| Build the canonical Plinthosol fixture | make_plinthosol_canonical |
| Perfil canonico de Plintossolo (SiBCS 5a ed., Cap 16) | make_plintossolo_canonical |
| Build the canonical Podzol fixture | make_podzol_canonical |
| Build the canonical Retisol fixture | make_retisol_canonical |
| Build the canonical Solonchak fixture | make_solonchak_canonical |
| Build the canonical Solonetz fixture | make_solonetz_canonical |
| Build the canonical Stagnosol fixture | make_stagnosol_canonical |
| Build a synthetic PedonRecord with attached spectra (testing aid) | make_synthetic_pedon_with_spectra |
| Build the canonical Technosol fixture | make_technosol_canonical |
| Build the canonical Umbrisol fixture | make_umbrisol_canonical |
| Build the canonical Vertisol fixture | make_vertisol_canonical |
| Perfil canonico de Vertissolo (SiBCS 5a ed., Cap 17) | make_vertissolo_canonical |
| Melanic Andisols: melanic_epipedon present. | melanic_andisol_usda |
| Melanic epipedon (USDA Soil Taxonomy, 13th edition) | melanic_epipedon_usda |
| Mineral material (WRB 2022 Ch 3.3.11): < 20% SOC AND < 35% volume artefacts containing >= 20% organic carbon. The complement of organic_material / organotechnic_material. | mineral_material |
| Mollic horizon (WRB 2022) | mollic |
| Mollic epipedon (USDA Soil Taxonomy, 13th edition) | mollic_epipedon_usda |
| Mollisol Order qualifier (USDA, KST 13ed, Ch 12) Pass when mollic_epipedon AND BS (NH4OAc) >= 50% in upper 100 cm. | mollisol_qualifying_usda |
| Mollisols (USDA Cap 12): mollic epipedon + base saturation >= 50%. | mollisol_usda |
| Mudanca textural abrupta (SiBCS Cap 1, p 30-31) | mudanca_textural_abrupta |
| Mulmic material (WRB 2022 Ch 3.3.12): mineral material developed from organic material; \>= 8% SOC, with low BD, structural / chroma criteria. | mulmic_material |
| Natric horizon (WRB 2022) | natric_horizon |
| Natric horizon helper (USDA, KST 13ed Ch 3) | natric_horizon_usda |
| Natric Subgroup helper for Natraquerts. | natric_subgroup_usda |
| Neossolos (SiBCS Cap 4, p 111-112; conceito Cap 3, p 96-97) | neossolo |
| Neossolos Fluvicos (Cap 12): caracter fluvico em < 150 cm. | neossolo_fluvico |
| Neossolos Litolicos (Cap 12): contato litico ou litico fragmentario \<= 50 cm. | neossolo_litolico |
| Neossolos Quartzarenicos (Cap 12): textura areia/areia franca em todos os horizontes ate 150 cm + 95% quartzo. | neossolo_quartzarenico |
| Neossolos Regoliticos (catch-all dos Neossolos). | neossolo_regolitico |
| Nitic horizon (WRB 2022) | nitic_horizon |
| Nitossolos (SiBCS Cap 4, p 114; conceito Cap 3, p 97-98) | nitossolo |
| Nitossolos Brunos (Cap 13): matiz \>= 7.5YR + valor <= 4 + croma <= 5. | nitossolo_bruno |
| Nitossolos Haplicos (catch-all). | nitossolo_haplico |
| Nitossolos Vermelhos (Cap 13): matiz \<= 2.5YR. | nitossolo_vermelho |
| Nitric Subgroup helper (Anhyturbels / Anhyorthels) | nitric_subgroup_usda |
| Canonicalise FEBR SiBCS names to match soilKey rule outputs. | normalise_febr_sibcs |
| Normalise FEBR USDA taxon strings to USDA Soil Taxonomy Order | normalise_febr_usda |
| Normalise FEBR WRB taxon strings to RSG-only | normalise_febr_wrb |
| Normalise KSSL USDA subgroup labels for benchmark comparison | normalise_kssl_subgroup |
| Ochric epipedon (USDA Soil Taxonomy, 13th edition) | ochric_epipedon_usda |
| Is the local Ollama HTTP API reachable? | ollama_is_running |
| Organic material (WRB 2022 Ch 3.3.13): \>= 20% SOC + recognisability criteria. v0.3.3: SOC threshold only. | organic_material |
| Organossolos (SiBCS Cap 4, chave do 1o nivel; conceito Cap 3, p 99-101) | organossolo |
| Organossolos Folicos (Cap 14): horizonte O histico (drenado). Detectado via designation pattern \"^O\". | organossolo_folico |
| Organossolos Haplicos (catch-all). | organossolo_haplico |
| Organossolos Tiomorficos (Cap 14): materiais sulfidricos OR horizonte sulfurico em < 100 cm. | organossolo_tiomorfico |
| Organotechnic material (WRB 2022 Ch 3.3.14): \>= 35% volume of artefacts that themselves contain \>= 20% organic C. Soil itself has < 20% SOC. | organotechnic_material |
| Ornithogenic material (WRB 2022 Ch 3.3.15): bird-influenced topsoil. Mehlich-3 P >= 750 mg/kg + designation pattern 'Aornit|Bornit'. | ornithogenic_material |
| Synthetic OSSL South America demo subset | ossl_demo_sa |
| Canonical schema for an `ossl_library` object | ossl_library_template |
| Oxic horizon (USDA, KST 13ed, Ch 3) Delegates to WRB 'ferralic'. | oxic_horizon_usda |
| Oxic horizon (USDA Soil Taxonomy) | oxic_usda |
| Oxisol (USDA Cap 13): oxic horizon, excluding profiles with an argillic horizon overlying the oxic. | oxisol_usda |
| Oxyaquic Subgroup helper (Spodosols, Mollisols, etc.) | oxyaquic_subgroup_usda |
| Pachic Subgroup helper (Andisols, Mollisols) Pass when mollic OR umbric epipedon is >= 50 cm thick. | pachic_subgroup_usda |
| Pale qualifying helper (Paleudults / Paleustults / Palexerults / Palehumults / Paleaquults) | pale_qualifying_usda |
| Paleargid qualifying helper Pass when argillic horizon has continuous clay films AND clay >> 35% in upper 10 cm (proxy for old, well-developed argillic). v0.8 proxy: argillic + clay_pct >= 35 in upper 30 cm. | paleargid_qualifying_usda |
| Panpaic horizon (WRB 2022 Ch 3.1) | panpaic |
| JSON Schema for a soilKey PedonRecord | pedon_json_schema |
| Convert a soilKey PedonRecord to an aqp SoilProfileCollection | pedon_to_spc |
| PedonRecord: structured representation of a single pedon | PedonRecord |
| Permafrost (USDA Soil Taxonomy, 13th edition) | permafrost_within_usda |
| Petrocalcic horizon (WRB 2022) | petrocalcic |
| Petrocalcic Subgroup helper (Aridisols Petrocalcids) Cemented calcic horizon with cementation_class >= "strongly". | petrocalcic_subgroup_usda |
| Petroduric horizon (WRB 2022): cemented duric. | petroduric |
| Petroferric contact helper (USDA, KST 13ed Ch 3, p 48) | petroferric_contact_usda |
| Petrogypsic horizon (WRB 2022): cemented gypsic. | petrogypsic |
| Petrogypsic horizon helper (USDA) | petrogypsic_horizon_usda |
| Petrogypsic Subgroup helper - delegate to petrogypsic_horizon_usda | petrogypsic_subgroup_usda |
| Petronodic Subgroup helper (Aridisols) Pass when 5%+ rock fragments cemented by carbonates within 100 cm. v0.8 proxy: caco3_pct >= 15 AND coarse_fragments_pct >= 5. | petronodic_subgroup_usda |
| Petroplinthic horizon (WRB 2022): cemented plinthic. | petroplinthic |
| Phaeozem RSG diagnostic (WRB 2022) | phaeozem |
| Map a 95% prediction interval to a [0, 1] confidence score | pi_to_confidence |
| Choose the best diagnostic engine for a single pedon | pick_engine |
| Per-pedon batch engine recommendation | pick_engine_batch |
| Pisoplinthic horizon (WRB 2022): pisolitic plinthic. v0.3.3 detects via designation pattern 'Bspl' / 'Bvpi' or via plinthite \>= 15% AND structure_type containing 'pisol'. | pisoplinthic |
| Placic horizon (USDA, KST 13ed Ch 3, pp 47-48) | placic_horizon_usda |
| Plaggic horizon (WRB 2022): sod-derived topsoil >= 20 cm with low BD AND independent evidence of human input. | plaggic |
| Planic features (WRB 2022) | planic_features |
| Planosol RSG gate (WRB 2022 Ch 4, p 107) | planosol |
| Planossolos (SiBCS Cap 4, p 112; conceito Cap 3, p 101-102) | planossolo |
| Planossolos Haplicos (catch-all). | planossolo_haplico |
| Planossolos Natricos (Cap 15): caracter sodico em \< 100 cm. | planossolo_natrico |
| Plinth qualifying helper (Plinth*ults) Pass when plinthite >= 5% in 50%+ of layers within 150 cm. | plinth_subgroup_usda |
| Plinthaquox qualifying helper (Aquox: continuous plinthite phase) Pass when plinthite >= 50% in some 10+ cm layer (continuous phase proxy). | plinthaquox_qualifying_usda |
| Plinthic horizon (WRB 2022) | plinthic |
| Plinthic Subgroup helper (Oxisols) Pass when plinthite >= 5% in any horizon within 125 cm. | plinthic_subgroup_usda |
| Plintossolos (SiBCS Cap 4, p 113; conceito Cap 3, p 102-104) | plintossolo |
| Plintossolos Argiluvicos (Cap 16): horizonte plintico + B textural OR carater argiluvico. | plintossolo_argiluvico |
| Plintossolos Haplicos (catch-all). | plintossolo_haplico |
| Plintossolos Petricos (Cap 16): horizonte concrecionario OR litoplintico (sem horizonte plintico precedendo). | plintossolo_petrico |
| Bayesian posterior classifier (optional) | posterior_classify |
| Predict soil properties from spectra | predict_from_spectra |
| Predict CIE Lab from Vis-NIR reflectance spectra | predict_lab_from_spectra |
| Predict Munsell hue / value / chroma from Vis-NIR reflectance spectra | predict_munsell_from_spectra |
| Memory-based learning prediction against the OSSL library | predict_ossl_mbl |
| Local PLSR prediction against the OSSL library | predict_ossl_plsr_local |
| Pre-trained OSSL prediction | predict_ossl_pretrained |
| Predict CIE XYZ tristimulus values from Vis-NIR reflectance spectra | predict_xyz_from_spectra |
| Predict from a soilKey_pls_model | predict.soilKey_pls_model |
| Pre-process Vis-NIR or MIR spectra | preprocess_spectra |
| Pretic horizon (WRB 2022): "Amazonian Dark Earth" (terra preta de indio) horizon - thick anthropogenic surface with high P, SOC, and incorporated charcoal / pottery. | pretic |
| Print method for soilKey_pls_model | print.soilKey_pls_model |
| Check consistency between a deterministic RSG assignment and a spatial prior | prior_consistency_check |
| Protocalcic properties (WRB 2022 Ch 3.2.8) | protocalcic_properties |
| Protogypsic properties (WRB 2022 Ch 3.2.9): visible secondary gypsum \>= 1% but below the gypsic gate. | protogypsic_properties |
| Protovertic horizon (WRB 2022 Ch 3.1) | protovertic |
| Psamment Suborder qualifier (sandy texture: clay + 2*silt < 30 AND no clay films / argillic). | psamment_qualifying_usda |
| Psammentic Subgroup helper (Aquorthels) | psammentic_subgroup_usda |
| Abruptic qualifier (ap): abrupt textural difference within 100 cm. | qual_abruptic |
| Aceric qualifier (ae): pH (1:1 H2O) <= 5 in some layer within the upper 50 cm. Used for sub-aerially exposed acid-sulfate soils (Solonchaks, Gleysols on former tidal flats). v0.9.1: numeric pH gate only; v0.9.2 adds the cross-check against 'thionic' / sulfidic material to disambiguate from naturally acidic Histosols. | qual_aceric |
| Acric qualifier (ac): argic horizon + low CEC + high Al. v0.9: argic + CEC < 24 cmolc/kg clay + exch Al > Ca+Mg+K+Na. | qual_acric |
| Acroxic qualifier (ax): andic + extremely low effective exchange complex (Ca + Mg + K + Na exch + 1 N KCl Al-exch <= 2 cmol+/kg fine earth) in some layer of the andic part within 100 cm. | qual_acroxic |
| Activic supplementary qualifier (av): active aluminium >= 5 cmol/kg WRB 2022 Ch 5: "KCl-extractable Al ('al_kcl_cmol') >= 5 cmol(c)/kg in any layer in upper 100 cm." Proxy via existing 'al_cmol' (exchangeable Al) when al_kcl_cmol absent. | qual_activic |
| Albic qualifier (ab): albic horizon <= 100 cm. | qual_albic |
| Alcalic supplementary qualifier (ac): pH (H2O) >= 9.0 WRB 2022 Ch 5: "Strongly alkaline reaction (pH H2O >= 9 in any layer within 100 cm of the soil surface)." | qual_alcalic |
| Alic qualifier (al): argic + high CEC + high Al saturation. | qual_alic |
| Aluandic qualifier (aa): andic properties + Al-dominant active component (Al / (Al + 0.5 Si) >= 0.5 in mass). | qual_aluandic |
| Andic qualifier (an): andic OR vitric properties combined >= 30 cm. v0.9 simplification: passes if andic_properties or vitric_properties passes within 100 cm. | qual_andic |
| Anofluvic qualifier (af): fluvic material only at depth >= 50 cm | qual_anofluvic |
| Anthraquic qualifier (aq): anthraquic horizon (puddled-rice surface). | qual_anthraquic |
| Anthric qualifier (ak): anthric properties. | qual_anthric |
| Anthromollic qualifier (am): anthric horizon overlying spodic | qual_anthromollic |
| Archaic supplementary qualifier (ah): archeological context | qual_archaic |
| Arenic qualifier (ar): texture sand or loamy sand >= 30 cm in <= 100 cm. | qual_arenic |
| Arenicolic supplementary qualifier (an): faunal sand burrows | qual_arenicolic |
| Aric qualifier (ar): mineral surface horizon homogenised by ploughing - designation pattern 'Ap', 'Apk', 'Apc', etc., starting within the upper 30 cm. | qual_aric |
| Bathyspodic supplementary qualifier (bs): spodic at 100-200 cm depth | qual_bathyspodic |
| Biocrustic supplementary qualifier (bk): biological soil crust | qual_biocrustic |
| Brunic qualifier (br): _incipient-only_ subsurface alteration - cambic horizon within the upper 100 cm AND no argic, spodic, ferralic, or nitic horizon present. Used by WRB 2022 Ch 4 for Arenosols that have begun to develop a weak Bw without crossing into Cambisol / Acrisol / Lixisol / Ferralsol territory; in those RSGs the cambic alone is the gating diagnostic and Brunic would be redundant. | qual_brunic |
| Bryic supplementary qualifier (by): bryophyte cover at surface | qual_bryic |
| Calcaric qualifier (cl): calcaric material >= 25 cm in upper 100 cm. | qual_calcaric |
| Calcic qualifier (cc): calcic horizon <= 100 cm. | qual_calcic |
| Cambic qualifier (cm): cambic horizon <= 50 cm. | qual_cambic |
| Capillaric supplementary qualifier (cp): capillary rise zone WRB 2022 Ch 5: "Capillary rise from a shallow water table to within 50 cm of the soil surface; flagged via redox concentrations (>=2%) + fine texture (clay+silt > 50%)." | qual_capillaric |
| Carbic qualifier (cb): spodic horizon dominated by humus illuviation. v0.9.1: spodic + OC >= 6% in some spodic layer (the WRB threshold for Carbic / "humus-Podzol" expression). | qual_carbic |
| Carbonatic supplementary qualifier (cn): >= 50% carbonates | qual_carbonatic |
| Carbonic supplementary qualifier (cb): high SOC content (>= 6%) | qual_carbonic |
| Chernic qualifier (ch): chernic horizon (intensely worm-mixed mollic-like) within 100 cm. | qual_chernic |
| Chloridic supplementary qualifier (cl): high chloride WRB 2022 Ch 5: "Containing >= 4 cmol(c)/kg chloride OR EC >= 8 dS/m within 100 cm." Proxy via electrical conductivity field ('ec_ds_m') when chloride is unavailable. | qual_chloridic |
| Chromic qualifier (cr): hue redder than 7.5YR + chroma > 4 (in upper subsoil 25-150 cm). | qual_chromic |
| Clayic qualifier (ce): clay >= 60% texture for a layer >= 30 cm in the upper 100 cm. | qual_clayic |
| Coarsic qualifier (cr): >= 70% coarse fragments by volume in upper 100 cm | qual_coarsic |
| Cohesic supplementary qualifier (co): cohesive horizon (extra-firm dry) WRB 2022 Ch 5: "Containing layers with extreme dry consistence AND moist consistence very firm." Implementation: matches via 'consistence_dry' ("extremely hard") OR 'consistence_moist' ("very firm"), within 100 cm. | qual_cohesic |
| Columnic supplementary qualifier (cm): columnar / prismatic structure WRB 2022 Ch 5: "Columnar or strong prismatic structure (associated with natric horizons)." | qual_columnic |
| Cordic supplementary qualifier (cd): cordic horizon | qual_cordic |
| Cryic qualifier (cy): cryic horizon <= 100 cm. | qual_cryic |
| Cumulic qualifier (cu): a layer of recent depositional material added on top of an existing soil. v0.9.3.B proxy: 'layer_origin' is fluvic / aeolic / solimovic at the top of the profile, OR the uppermost mineral horizon's designation matches '^[AC]u?\d?' (cumulic-style suffix). | qual_cumulic |
| Cutanic qualifier (ct): visible illuvial clay coatings on argic- horizon ped surfaces (the "Cutanic Luvisol" / "Cutanic Argissol" signature). v0.9.1: argic horizon passes AND the schema column 'clay_films_amount' contains "common", "many", or "continuous" (or "shiny" - common Brazilian descriptor for nitic surfaces) in some argic layer. | qual_cutanic |
| Densic qualifier (dn): bulk density >= 1.8 g/cm3 in some root- restricting layer within 100 cm. | qual_densic |
| Differentic supplementary qualifier (df): contrasting layers WRB 2022 Ch 5: "Strong differences (texture, mineralogy, color) between adjacent layers without abrupt textural transition (mild clay-increase 1.2-1.4x ratio)." | qual_differentic |
| Dolomitic qualifier (do): dolomitic material in upper 100 cm. | qual_dolomitic |
| Dorsic supplementary qualifier (do): dorsal-ridge microrelief | qual_dorsic |
| Drainic qualifier (dr): artificially drained organic soil. v0.9.1: site$drainage_class or site$land_use carries an explicit _artificial_ drainage marker AND organic_material passes. Natural drainage classes (e.g. "very poorly drained", "well drained") do NOT trigger Drainic on their own. | qual_drainic |
| Duric qualifier (du): duric horizon <= 100 cm. | qual_duric |
| Dystric qualifier (dy): low base saturation throughout. v0.9: BS < 50% from 20 to 100 cm in mineral material. | qual_dystric |
| Ekranic qualifier (ek): impervious cover (asphalt, concrete) starting within 5 cm of the surface. v0.9.1: technic_hard_material with top depth <= 5 cm. | qual_ekranic |
| Endic supplementary qualifier (ec): generic "in deep horizon" marker | qual_endic |
| Endoabruptic supplementary qualifier (eea): abrupt textural change deep | qual_endoabruptic |
| Endocalcaric qualifier (cae): calcaric only at depth >= 50 cm | qual_endocalcaric |
| Endocalcic qualifier (cam): calcic horizon between 50 and 100 cm. | qual_endocalcic |
| Endodolomitic qualifier (dme): dolomitic only at depth >= 50 cm | qual_endodolomitic |
| Endoduric supplementary qualifier: duric horizon at depth >= 50 cm | qual_endoduric |
| Endodystric supplementary qualifier (eds): dystric only at depth | qual_endodystric |
| Endoeutric supplementary qualifier (eee): eutric only at depth | qual_endoeutric |
| Endogleyic qualifier (eng): gleyic conditions between 50 and 100 cm. | qual_endogleyic |
| Endogypsic supplementary qualifier: gypsic horizon at depth >= 50 cm | qual_endogypsic |
| Endoleptic supplementary qualifier (lle): rock contact 50-100 cm | qual_endoleptic |
| Endostagnic qualifier (ens): stagnic conditions between 50 and 100 cm. | qual_endostagnic |
| Endothionic supplementary qualifier (etn): thionic at depth >= 50 cm | qual_endothionic |
| Endothyric supplementary qualifier (etc): thyric only at depth >= 50 | qual_endothyric |
| Entic qualifier (et): albic horizon AND NOT spodic | qual_entic |
| Epic supplementary qualifier (ep): generic "in shallow horizon" | qual_epic |
| Epidystric supplementary qualifier (epd): dystric only in upper 50 cm | qual_epidystric |
| Epieutric supplementary qualifier (eee): eutric only in upper 50 cm | qual_epieutric |
| Escalic supplementary qualifier (es): terraced / stepped morphology | qual_escalic |
| Eutric qualifier (eu): high base saturation. v0.9: BS >= 50% throughout 20-100 cm. | qual_eutric |
| Eutrosilic qualifier (es): silandic + base saturation >= 50% in some layer of the silandic part within 100 cm. | qual_eutrosilic |
| Evapocrustic supplementary qualifier (ev): evaporite surface crust | qual_evapocrustic |
| Ferralic qualifier (fl): ferralic horizon <= 150 cm. | qual_ferralic |
| Ferric qualifier (fr): ferric horizon <= 100 cm. | qual_ferric |
| Ferritic qualifier (fr): high free-Fe in fine earth | qual_ferritic |
| Fibric qualifier (fi): organic material whose dominant decomposition class in the upper 100 cm is fibric (>= 2/3 fiber). v0.9.1: thickness-weighted dominance via Oi designation. | qual_fibric |
| Floatic qualifier (fc): Histosol that floats on water. | qual_floatic |
| Fluvic qualifier (fv): fluvic material >= 25 cm thick starting <= 75 cm. | qual_fluvic |
| Folic qualifier (fo): folic horizon at the soil surface. v0.9 delegates to histic_horizon with surface-only filter. | qual_folic |
| Fractic qualifier (fc): fractures (cracks) within 100 cm | qual_fractic |
| Garbic qualifier (ga): >= 20% organic-waste artefacts (landfill refuse) in the upper 100 cm. v0.9.1 proxy: designation pattern ('Cgarb|garb|landfill|refuse'). Hard schema column 'artefacts_garbic_pct' scheduled for v0.9.2. | qual_garbic |
| Gelic supplementary qualifier (gl): permafrost or strong frost activity WRB 2022 Ch 5: "Permafrost within 200 cm of the soil surface OR gelic materials." Modifier of cryic_conditions for non-Cryosols. | qual_gelic |
| Gelistagnic supplementary qualifier (gst): stagnic in cold conditions WRB 2022 Ch 5: "Stagnic features (perched water) in cryic regime." Compose: stagnic_pattern + cryic_conditions. | qual_gelistagnic |
| Geoabruptic supplementary qualifier (ga): abrupt change at lithological boundary WRB 2022 Ch 5: "Abrupt textural / mineralogical change at a lithological discontinuity (e.g., 2C horizon below B)." Implementation: designation pattern containing "2C" or "3C" (numeric prefix indicates lithologic discontinuity). | qual_geoabruptic |
| Geric qualifier (gr): in some layer at <= 100 cm, the effective exchange complex (sum of bases + 1 N KCl Al-exchangeable) does not exceed 1.5 cmol+/kg fine earth, OR the soil shows net positive charge (delta pH = pH_KCl - pH_H2O > 0). The "or" path makes Geric / Posic overlap by design (per WRB Ch 5). | qual_geric |
| Gibbsic qualifier (gi): high gibbsite (>= 25%) in fine earth | qual_gibbsic |
| Gilgaic supplementary qualifier (gi): gilgai microrelief WRB 2022 Ch 5: "Gilgai microrelief (associated with vertic shrinking/swelling soils)." Site-level field detection. | qual_gilgaic |
| Glacic qualifier (gc): >= 75% ice by volume within 100 cm. v0.9.1 proxy: cryic conditions + designation pattern ('ice|gel|glac'). Schema column 'ice_pct' scheduled for v0.9.2. | qual_glacic |
| Gleyic qualifier (gl): gleyic properties throughout a layer >= 25 cm starting <= 75 cm + reducing conditions. | qual_gleyic |
| Glossic qualifier (gs): mollic horizon penetrated by albeluvic tongues (glossae). Diagnostic of Glossic Chernozems / Phaeozems on the steppe / forest-steppe transition. | qual_glossic |
| Greyzemic qualifier (gz): mollic / umbric overlain by albic-like layer | qual_greyzemic |
| Grumic qualifier (gr): strong fine granular surface horizon (self-mulching Vertisol). | qual_grumic |
| Gypsic qualifier (gy): gypsic horizon <= 100 cm. | qual_gypsic |
| Gypsiric qualifier (gc): gypsiric material >= 25 cm in upper 100 cm. | qual_gypsiric |
| Haplic qualifier (ha): no other principal qualifier of the RSG applies. Always passes; the qualifier resolution machinery uses it as the default when no other qualifier matched. | qual_haplic |
| Hemic qualifier (hc): organic material whose dominant decomposition class in the upper 100 cm is hemic (1/6 - 2/3 fiber). v0.9.1: thickness-weighted dominance via Oe designation. | qual_hemic |
| Histic qualifier (hi): histic horizon at or near the surface. | qual_histic |
| Hortic qualifier (ht): hortic horizon (long-cultivated dark surface). | qual_hortic |
| Humic qualifier (hu): >= 1% SOC in upper 50 cm (weighted average). | qual_humic |
| Hydragric qualifier (hg): hydragric horizon (puddled-rice subsurface). | qual_hydragric |
| Hydric qualifier (hy): water content at 1500 kPa >= 100% (undried fine earth, WRB 2022). v0.9.1 accepts the air-dried equivalent (>= 70%) when the lab protocol pre-dries; the result is flagged as "potentially over-permissive" via the 'notes' field when the value falls in the 70-100% band. | qual_hydric |
| Hydrophobic supplementary qualifier (hf): water-repellent surface | qual_hydrophobic |
| Hyperalbic qualifier (ha): albic horizon thicker than 100 cm in a _contiguous_ run (extremely deep eluvial bleaching, common in giant Podzols of tropical white-sand systems and the deepest Stagnosol / Planosol profiles). Non-contiguous albic layers separated by an illuvial Bs / Bt do NOT count toward the threshold. | qual_hyperalbic |
| Hyperalic qualifier (yl): argic horizon with Al saturation >= 50% in some layer of the argic part within 100 cm. Stronger version of Alic. | qual_hyperalic |
| Hyperartefactic qualifier (yr): >= 80% artefacts (any type) in the upper 100 cm. | qual_hyperartefactic |
| Hypercalcic qualifier (yc): calcic horizon AND CaCO3 >= 50% in some calcic layer. | qual_hypercalcic |
| Hyperdystric qualifier (yd): base saturation < 5% throughout the upper 100 cm (mineral soil layers only). Stronger than Dystric (BS < 50%). | qual_hyperdystric |
| Hypereutric qualifier (ye): base saturation >= 80% throughout the upper 100 cm. Stronger than Eutric (BS >= 50%). | qual_hypereutric |
| Hypergypsic qualifier (yg): gypsic horizon AND gypsum >= 60% in some gypsic layer. | qual_hypergypsic |
| Hypernatric supplementary qualifier (hyna): very high Na (>= 70% ESP) | qual_hypernatric |
| Hyperorganic supplementary qualifier (hyo): SOC >= 18% (peat-like) WRB 2022 Ch 5: "Containing organic carbon >= 18% by mass in any layer >= 10 cm thick." A stronger version of `Carbonic`. | qual_hyperorganic |
| Hypersalic qualifier (yz): EC (1:5 H2O extract) >= 30 dS/m in some layer within the upper 100 cm. Stronger than the Salic horizon (default >= 15 dS/m). | qual_hypersalic |
| Hyperskeletic qualifier (hk): coarse fragments >= 90% throughout the upper 100 cm. | qual_hyperskeletic |
| Hypersodic qualifier (yo): ESP >= 50% in some layer within 100 cm. Stronger than Sodic (default ESP >= 6%). | qual_hypersodic |
| Hyperspodic qualifier (hp): spodic horizon with very strong active Al + Fe accumulation (Al_ox + 0.5 * Fe_ox >= 1.5%) - twice the minimum spodic threshold per WRB Ch 3.1. v0.9.1 also requires p-retention >= 85% in the same layers when available. | qual_hyperspodic |
| Hypocalcic qualifier (jc): CaCO3 >= 5% AND < 15% in some layer within 100 cm (between protocalcic 0.5% and the calcic-horizon 15% threshold). Marks the broad "carbonate-bearing" middle band that doesn't meet the Calcic horizon. | qual_hypocalcic |
| Hypogypsic qualifier (jg): gypsum >= 1% AND < 5% in some layer within 100 cm (below the gypsic-horizon threshold but above the protogypsic-properties bare-detection bar). | qual_hypogypsic |
| Hyposalic qualifier (jz): EC (1:5 H2O extract) >= 4 dS/m AND < 15 dS/m in some layer within the upper 100 cm. Used for soils too weak to qualify as Solonchak but still carrying a salinity tag. | qual_hyposalic |
| Hyposodic qualifier (jo): ESP >= 6% AND < 15% in some layer within 100 cm. Marginal sodicity tag. | qual_hyposodic |
| Immissic supplementary qualifier (im): atmospheric immission | qual_immissic |
| Inclinic supplementary qualifier (in): tilted / inclined position WRB 2022 Ch 5: site has a slope >= 10% (relevo declivoso). Implementation: site$slope_pct (when populated) >= 10 OR parent_material / forma_relevo flagging steep terrain. | qual_inclinic |
| Irragric qualifier (ir): irragric horizon (irrigation-deposited surface). | qual_irragric |
| Isolatic qualifier (il): isolated technic material | qual_isolatic |
| Isopteric supplementary qualifier (ip): termite / ant biogenesis | qual_isopteric |
| Kalaic supplementary qualifier (ka): dry-season puffed surface layer | qual_kalaic |
| Lamellic qualifier (ll): thin (< 5 cm) clay-enriched lamellae, typical of sandy Luvisols / Alisols / Acrisols. v0.9.3.B proxy: designation pattern 'lamell' / 'E&Bt' / '&Bt' / 'Bt(t)?\d?lam' in any subsurface layer. | qual_lamellic |
| Lapiadic supplementary qualifier (lp): karren / lapies bedrock features | qual_lapiadic |
| Laxic supplementary qualifier (lx): loose / non-cohesive surface WRB 2022 Ch 5: "Surface horizon with loose dry consistence and single-grain or massive structure." | qual_laxic |
| Leptic qualifier (le): continuous rock <= 100 cm. | qual_leptic |
| Lignic supplementary qualifier (lg): wood content in organic horizon WRB 2022 Ch 5: "Containing recognisable wood remains (>= 25% by volume or weight) in organic material." Implementation: 'woody_fragments_pct' or layer_origin matching wood. | qual_lignic |
| Limnic qualifier (lm): limnic material (lacustrine / marine subaquatic deposits) anywhere in the profile. | qual_limnic |
| Linic qualifier (li): continuous artificial geomembrane within 100 cm. v0.9.1 proxy: designation pattern ('linic|geomemb|liner'). | qual_linic |
| Lithic qualifier (lt): continuous rock starting within 10 cm. Tighter depth gate than Leptic (which is <= 100 cm) and Nudilithic (== 0 cm). | qual_lithic |
| Litholinic supplementary qualifier (ll): stratified soil on rock | qual_litholinic |
| Lixic qualifier (lx): argic + low CEC, low Al. | qual_lixic |
| Loamic qualifier (lo): loam-class texture >= 30 cm in the upper 100 cm. | qual_loamic |
| Luvic qualifier (lv): argic + high CEC, low Al saturation. | qual_luvic |
| Magnesic qualifier (mg): exchangeable Ca/Mg < 1 in upper 100 cm. | qual_magnesic |
| Mahic supplementary qualifier (mh): manure-derived dark surface WRB 2022 Ch 5: "Topsoil enriched by long-term manure / compost application; oc_pct >= 4%, base_saturation_pct >= 50%, and p_mehlich >= 100 mg/kg." | qual_mahic |
| Mawic qualifier (mw): moss-fibre-dominant peat | qual_mawic |
| Mazic qualifier (mz): structureless / massive surface horizon (Vertisol). Diagnostic of slaked, crusted Vertisol surfaces. | qual_mazic |
| Melanic qualifier (me): andic + dark high-OC surface horizon. v0.9.1: thickness >= 30 cm within upper 50 cm, OC weighted >= 6%, Munsell value <= 2 and chroma <= 2 (moist). Melanic Index >= 1.7 (the canonical UV-OD ratio) is deferred to v0.9.2. | qual_melanic |
| Mineralic supplementary qualifier (mn): predominantly mineral WRB 2022 Ch 5: "Predominantly mineral material in upper 100 cm (oc_pct < 12% averaged over depth)." | qual_mineralic |
| Mochipic supplementary qualifier (mp): mottled mochi-like pattern | qual_mochipic |
| Mollic qualifier (mo): mollic horizon. | qual_mollic |
| Mulmic qualifier (ml): mulmic material in upper 100 cm. | qual_mulmic |
| Murshic qualifier (mr): partly drained organic with strong decomposition | qual_murshic |
| Muusic qualifier (mu): high-fibre peat (non-moss-specific) | qual_muusic |
| Naramic supplementary qualifier (na): salt-crust morphology | qual_naramic |
| Natric qualifier (na): natric horizon <= 100 cm. | qual_natric |
| Nechic supplementary qualifier (ne): aeolian / loess deposit pattern | qual_nechic |
| Neobrunic qualifier (nb): "young" cambic-like horizon | qual_neobrunic |
| Neocambic qualifier (nc): "young" cambic horizon with weak development | qual_neocambic |
| Nitic qualifier (ni): nitic horizon <= 100 cm. | qual_nitic |
| Nudiargic qualifier (nu): argic horizon at the surface | qual_nudiargic |
| Nudilithic qualifier (nt): continuous rock at the soil surface (top_cm == 0). | qual_nudilithic |
| Nudinatric qualifier (nn): natric horizon at the surface | qual_nudinatric |
| Ochric qualifier (oh): SOC >= 0.2% upper 10 cm + no mollic/umbric. | qual_ochric |
| Ombric qualifier (om): rain-fed Histosol. | qual_ombric |
| Organotechnic qualifier (ot): organotechnic material in upper 100 cm. | qual_organotechnic |
| Ornithic qualifier (oc): ornithogenic material (bird-influenced topsoil) in the upper 50 cm. | qual_ornithic |
| Orthofluvic qualifier (of): fluvic material 50-100 cm | qual_orthofluvic |
| Ortsteinic qualifier (os): cemented spodic horizon. v0.9.1: spodic horizon + cementation_class strongly OR indurated. | qual_ortsteinic |
| Oxyaquic qualifier (oa): saturation regime without reduction | qual_oxyaquic |
| Oxygleyic qualifier (og): gleyic regime with predominant oxidation | qual_oxygleyic |
| Pachic qualifier (pc): mollic OR umbric horizon >= 50 cm thick. | qual_pachic |
| Pantofluvic qualifier (pf): fluvic material throughout 0-100 cm | qual_pantofluvic |
| Pellic qualifier (pe): in the upper 30 cm, Munsell value <= 4 moist AND chroma <= 2 moist. Diagnostic of "black" (dark) Vertisols. | qual_pellic |
| Pelocrustic supplementary qualifier (pc): clayey surface crust | qual_pelocrustic |
| Petric qualifier (pt): any petro-cemented horizon (petrocalcic / petroduric / petrogypsic / petroplinthic) within 100 cm. | qual_petric |
| Petrocalcic qualifier (pc): petrocalcic horizon <= 100 cm. | qual_petrocalcic |
| Petroduric qualifier (pd): petroduric horizon <= 100 cm. | qual_petroduric |
| Petrogypsic qualifier (pg): petrogypsic horizon <= 100 cm. | qual_petrogypsic |
| Petroplinthic qualifier (pp): petroplinthic horizon <= 100 cm. | qual_petroplinthic |
| Petrosalic qualifier (ptso): cemented salic horizon | qual_petrosalic |
| Pisoplinthic qualifier (px): pisoplinthic horizon within 100 cm. | qual_pisoplinthic |
| Placic qualifier (pi): thin (<= 25 mm = 2.5 cm) cemented Fe pan, typically inside or just above a spodic horizon. v0.9.1: a layer with cementation_class strongly or indurated AND thickness <= 2.5 cm, anywhere in the upper 100 cm. | qual_placic |
| Plaggic qualifier (pa): plaggic horizon (sod-amended surface). | qual_plaggic |
| Plinthic qualifier (pl): plinthic horizon <= 100 cm. | qual_plinthic |
| Posic qualifier (po): net positive permanent charge (pH_KCl > pH_H2O) in some layer at <= 100 cm. Diagnostic of the most weathered Ferralsols where free Fe / Al oxides dominate the surface charge. | qual_posic |
| Pretic qualifier (pt): pretic (pre-Columbian Amerindian dark earth) horizon. | qual_pretic |
| Profondic qualifier (pf): argic horizon that continues, with no clay decrease, down to or below 150 cm. v0.9.3.B: requires 'argic' to pass AND at least one argic layer with 'bottom_cm >= 150'. | qual_profondic |
| Profundihumic qualifier (ph): SOC >= 1.4% to depth >= 100 cm | qual_profundihumic |
| Protic qualifier (pr): Arenosol (or Regosol) with NO incipient subsurface horizon - i.e. an A-over-C profile where no cambic, no argic, no spodic, no ferralic, no nitic horizon is present in the upper 100 cm. v0.9.1 implements as the conjunction of the "no B horizon" diagnostics. | qual_protic |
| Protoandic supplementary qualifier (pan): early-stage andic WRB 2022 Ch 5: "Andic-like properties below the strict threshold (oxalate Al+Fe 0.4-2.0%)." | qual_protoandic |
| Protoargic supplementary qualifier (pra): early-stage argic WRB 2022 Ch 5: "Clay increase 2-6 percentage points (below the canonical argic threshold)." | qual_protoargic |
| Protocalcic qualifier (qc): protocalcic properties (incipient carbonate accumulation) within the upper 100 cm. Wraps 'protocalcic_properties'. | qual_protocalcic |
| Protogypsic qualifier (qg): protogypsic properties (incipient gypsum accumulation) within the upper 100 cm. Wraps 'protogypsic_properties'. | qual_protogypsic |
| Protospodic supplementary qualifier (psp): early-stage spodic WRB 2022 Ch 5: "Spodic-like horizon meeting weakened criteria (Al+Fe oxalate < 0.5% but pyrophosphate > 0.05%)." Lacking pyrophosphate field; we proxy via spodic candidate horizons that fail strict spodic. | qual_protospodic |
| Protovertic qualifier (qv): protovertic horizon (vertic-spectrum lower bound, no slickensides yet but the clay + structure / shrink-swell signal is already present) within the upper 100 cm. Wraps 'protovertic' and is mutually exclusive with the strict Vertic qualifier. | qual_protovertic |
| Puffic supplementary qualifier (pf): puffed surface | qual_puffic |
| Pyric supplementary qualifier (py): fire-affected horizon WRB 2022 Ch 5: "Containing layers with charcoal / soot / fire-baked material (visual or chemical evidence)." Implementation: 'layer_origin' or designation matching fire-related text. | qual_pyric |
| Raptic supplementary qualifier (rp): stratification break | qual_raptic |
| Reductaquic qualifier (ra): aquic + reductive at depth | qual_reductaquic |
| Reductic qualifier (rd): permanently reducing conditions caused by anthropogenic gas / liquid emissions (typical of Technosols on landfills). v0.9.1: reducing_conditions + Technic context. | qual_reductic |
| Reductigleyic qualifier (rg): gleyic + reductive | qual_reductigleyic |
| Relocatic qualifier (rl): relocated material (Arenosols / Regosols) | qual_relocatic |
| Rendzic qualifier (rz): mollic horizon directly over calcaric material (or limestone), shallow. Defined as Mollic + (Calcaric OR continuous rock with carbonate parent material). | qual_rendzic |
| Retic qualifier (rt): retic properties <= 100 cm. | qual_retic |
| Rheic qualifier (rh): water-fed Histosol. | qual_rheic |
| Rhodic qualifier (ro): hue redder than 5YR + value < 4 + dry no more than 1 unit higher than moist (in upper subsoil 25-150 cm). | qual_rhodic |
| Rockic qualifier (rk): rock-dominated organic horizon | qual_rockic |
| Rubic qualifier (rb): red Munsell hue <= 5YR AND chroma >= 4 in some layer within the upper 100 cm. Less strict than Rhodic (which requires <= 2.5YR + value < 4); useful as a supplementary tag for tropical soils with reddish colours that don't reach the Rhodic threshold. | qual_rubic |
| Rustic qualifier (rs): iron-dominated spodic illuviation. v0.9.1: spodic + OC < 1% AND active iron (Fe_ox) >= 0.5% in the same spodic layer (humus-poor, Fe-rich ortstein / Bs). | qual_rustic |
| Salic qualifier (sz): salic horizon <= 100 cm. | qual_salic |
| Sapric qualifier (sa): organic material whose dominant decomposition class in the upper 100 cm is sapric (rubbed fiber < 1/6). v0.9.1: thickness-weighted dominance via Oa designation. | qual_sapric |
| Saprolithic supplementary qualifier (sp): saprolite parent material | qual_saprolithic |
| Silandic qualifier (sn): andic properties + Si-dominant active component (Al / (Al + 0.5 Si) < 0.5 in mass; allophane-rich). | qual_silandic |
| Siltic qualifier (sl): silt or silt-loam texture >= 30 cm in the upper 100 cm. | qual_siltic |
| Skeletic qualifier (sk): coarse fragments >= 40% averaged over 100 cm. | qual_skeletic |
| Sodic qualifier (so): ESP >= 6% (incl. SAR-derived). | qual_sodic |
| Solimovic qualifier (sv): solimovic material (mass-movement deposits). | qual_solimovic |
| Sombric qualifier (sm): sombric horizon (humus-illuviated layer at depth) within 200 cm. WRB excludes layers that simultaneously meet spodic or ferralic criteria from being Sombric - those have specific qualifiers of their own. v0.9.1 enforces both exclusions. | qual_sombric |
| Someric qualifier (sm): anthric epipedon over chernic / mollic | qual_someric |
| Spodic qualifier (sd): spodic horizon <= 200 cm. | qual_spodic |
| Spolic qualifier (sp): >= 20% mineral spoil artefacts (mining / industrial-process slag) in the upper 100 cm. v0.9.1 proxy: designation pattern ('Cspol|spoil|slag|mine') or 'rock_origin == "spoil"'. Hard schema column 'artefacts_spolic_pct' scheduled for v0.9.2. | qual_spolic |
| Stagnic qualifier (st): stagnic properties <= 75 cm. | qual_stagnic |
| Subaquatic qualifier (sq): permanently under water. v0.9.1: site$drainage_class == "subaquatic" or "submerged". | qual_subaquatic |
| Sulfatic supplementary qualifier (su): high sulfate content WRB 2022 Ch 5: "Containing >= 25% gypsum or >= 5% sulfate by mass." | qual_sulfatic |
| Sulfidic qualifier (sf): hyper- OR hyposulfidic material in upper 100 cm (the WRB Sulfidic qualifier covers either acidification class). | qual_sulfidic |
| Takyric qualifier (ty): takyric properties in upper 50 cm. | qual_takyric |
| Technic qualifier (tc): >= 20% artefacts in upper 100 cm OR equivalent geomembrane / technic-hard cover. | qual_technic |
| Tephric qualifier (tf): tephric material >= 30 cm in upper 100 cm. | qual_tephric |
| Terric qualifier (te): terric horizon (anthropogenic added mineral material on top of cultivated land). | qual_terric |
| Thionic qualifier (tn): thionic horizon within 100 cm. | qual_thionic |
| Thixotropic supplementary qualifier (tx): thixotropic behavior | qual_thixotropic |
| Thyric qualifier (ty): organic technic material in upper 100 cm | qual_thyric |
| Tidalic qualifier (td): subject to tidal flooding. v0.9.1: site$drainage_class contains "tidal". | qual_tidalic |
| Tonguic qualifier (tg): tongues of A horizon penetrating into B | qual_tonguic |
| Toxic qualifier (tx): toxic concentration of organic or inorganic constituents. | qual_toxic |
| Transportic qualifier (tr): transported material (Technosols / Regosols) | qual_transportic |
| Turbic qualifier (tb): cryoturbation features within 100 cm. v0.9.1 proxy: cryic conditions + designation pattern ('turb|jj|cryot') OR slickensides "common"/"many" in a cryic profile. | qual_turbic |
| Umbric qualifier (um): umbric horizon. | qual_umbric |
| Urbic qualifier (ub): >= 20% urbic artefacts (rubble, refuse) in the upper 100 cm. | qual_urbic |
| Uterquic supplementary qualifier (uq): bidirectional water regime | qual_uterquic |
| Vermic qualifier (vm): >= 50% bioturbation by worm casts / krotovinas in the upper 100 cm. v0.9.1: 'worm_holes_pct >= 50'. | qual_vermic |
| Vertic qualifier (vr): vertic horizon <= 100 cm. | qual_vertic |
| Vetic qualifier (vt): CEC (1 N NH4OAc, pH 7) by clay does not exceed 6 cmol+/kg clay in some layer at <= 100 cm. Stronger than the ferralic-CEC threshold (<= 16 cmol+/kg clay). | qual_vetic |
| Vitric qualifier (vi): vitric properties >= 30 cm within 100 cm. | qual_vitric |
| Wapnic qualifier (wp): soft, moist limnic material >= 80% CaCO3 | qual_wapnic |
| Xanthic qualifier (xa): ferralic + hue 7.5YR or yellower + value >= 4 + chroma >= 5. | qual_xanthic |
| Yermic qualifier (ye): yermic properties in upper 50 cm. | qual_yermic |
| Quartzipsamment helper (Quartzipsamments: >= 95% resistant minerals) | quartzipsamment_qualifying_usda |
| Load FEBR datasets as a list of PedonRecord objects | read_febr_pedons |
| Reducing conditions (WRB 2022 Ch 3.2.10) - per-pedon test wrapping 'test_reducing_conditions'. | reducing_conditions |
| Rendolls qualifier: shallow soil over carbonate parent material. Pass when CaCO3 >= 40% in subsurface AND profile depth < 100 cm to a contact. | rendoll_qualifying_usda |
| Render a soilKey classification report | report |
| Render a soilKey classification report as self-contained HTML | report_html |
| Render a soilKey classification report as PDF | report_pdf |
| Export a classification result + pedon to a QGIS GeoPackage | report_to_qgis |
| Resolve WRB 2022 qualifiers for a Reference Soil Group | resolve_wrb_qualifiers |
| Retic properties (WRB 2022) | retic_properties |
| Rhodic Subgroup helper (Oxisols, Mollisols, etc.) Pass when 50%+ colors have hue <= 2.5YR AND value <= 3 in B horizons 25-125 cm. | rhodic_subgroup_usda |
| Launch the soilKey interactive classification Shiny app | run_classify_app |
| Launch the soilKey Shiny demo (one-screen GUI) | run_demo |
| Resolve o grande grupo (3o nivel) de um pedon classificado em uma subordem SiBCS | run_sibcs_grande_grupo |
| Roda a chave SiBCS 5a edicao sobre um pedon | run_sibcs_key |
| Resolve o subgrupo (4o nivel) de um pedon classificado em um Grande Grupo SiBCS | run_sibcs_subgrupo |
| Resolve a subordem de um pedon ja classificado em uma ordem SiBCS | run_sibcs_subordem |
| Iterate a flat taxa list and evaluate tests in canonical order | run_taxa_list |
| Run a taxonomic key (system-agnostic engine) | run_taxonomic_key |
| Run the USDA Great Group key for a given Suborder | run_usda_great_group |
| Run the USDA Soil Taxonomy Order key over a pedon | run_usda_key |
| Run the USDA Subgroup key for a given Great Group | run_usda_subgroup |
| Run the USDA Suborder key for a given Order | run_usda_suborder |
| Run the WRB 2022 key over a pedon | run_wrb_key |
| Ruptic-Histic Subgroup helper | ruptic_histic_subgroup_usda |
| Ruptic Subgroup helper (Histoturbels / Historthels) | ruptic_subgroup_usda |
| Salic horizon (WRB 2022) | salic |
| Salic horizon (USDA, delegates to WRB salic). | salic_horizon_usda |
| Salic Subgroup helper Wraps salic_horizon_usda. Used for Salaquerts/Salitorrerts/etc. | salic_subgroup_usda |
| Sapric_predominant_usda: Saprists Suborder qualifier Pass when thickness of sapric > thickness of fibric+hemic in 0-130 cm. | sapric_predominant_usda |
| Sapric Subgroup helper (Sphagnofibrists) | sapric_subgroup_usda |
| Material organico saprico (SiBCS Cap 14) | saprico |
| Save / load trained OSSL-backed PLSR models | load_ossl_models save_ossl_models |
| Shrink-swell cracks (WRB 2022 Ch 3.2.12) - per-pedon test wrapping 'test_shrink_swell_cracks'. | shrink_swell_cracks |
| Sideralic properties (WRB 2022 Ch 3.2.13) | sideralic_properties |
| Aridic soil moisture regime (USDA) | smr_aridic_usda |
| Torric soil moisture regime (USDA) | smr_torric_usda |
| Udic soil moisture regime (USDA) | smr_udic_usda |
| Ustic soil moisture regime (USDA) | smr_ustic_usda |
| Xeric soil moisture regime (USDA) | smr_xeric_usda |
| Sodic Subgroup helper - delegate to natric_horizon (USDA) | sodic_subgroup_usda |
| Likely soil classes at a geographic location (spatial classification aid) | soil_classes_at_location |
| Soil moisture regime helper (USDA, KST 13ed Ch 3, pp 50-52) | soil_moisture_regime_usda |
| Soil organic carbon (WRB 2022 Ch 3.3.16): organic C that does NOT belong to artefacts. v0.3.3: any layer with oc_pct >= 0.1 and artefacts_industrial_pct < 35. | soil_organic_carbon |
| Soil temperature regime helper (USDA, KST 13ed Ch 3, pp 53-58) | soil_temperature_regime_usda |
| SoilGrids -> USDA Soil Order lookup table (placeholder) | soilgrids_usda_lut |
| SoilGrids -> WRB code lookup table | soilgrids_wrb_lut |
| Solimovic material (WRB 2022 Ch 3.3.17): hetero genous mass-movement material on slopes / footslopes (formerly "colluvic"). v0.3.3: detects via 'rock_origin == "colluvial"' OR 'layer_origin == "solimovic"'. | solimovic_material |
| Sombric horizon (WRB 2022): subsurface accumulation of humus that qualified neither as spodic nor as a true mollic-like horizon (low-base-saturation cool tropical highlands). v0.3.3 detects via designation pattern + OC criteria (BS < 50, OC > 0.6, depth > 25 cm). | sombric |
| 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. | sombric_subgroup_usda |
| Spatial prior over RSGs (or Orders) at a pedon's location | spatial_prior |
| Embrapa national soil-class spatial prior (Brazil only) | spatial_prior_embrapa |
| SoilGrids spatial prior | spatial_prior_soilgrids |
| Sphagnic Subgroup helper (Histels Fibristels) | sphagnic_usda |
| Spodic horizon (WRB 2022) | spodic |
| Spodic-Andisols Subgroup helper Pass when albic horizon overlies a cambic OR spodic horizon, OR when a spodic horizon is present in 50%+ of the pedon. | spodic_andisol_usda |
| Spodosols Order qualifier (USDA, KST 13ed) | spodic_horizon_usda |
| Spodic Subgroup helper for Psammorthels/Psammoturbels | spodic_subgroup_usda |
| Spodosols (USDA Cap 14): spodic horizon (illuvial Al/Fe/OC). | spodosol_usda |
| USDA Soil Taxonomy diagnostic features canonical table | st_features_canonical |
| Stagnic properties (WRB 2022) | stagnic_properties |
| Cryic soil temperature regime (USDA) | str_cryic_usda |
| Gelic soil temperature regime (USDA) | str_gelic_usda |
| Subgrupo "espessos" de Planossolos (B planico profundo, > 100 cm) | subgrupo_planossolo_espessos |
| Subgrupo "mesicos" de Planossolos (B planico topo em [50, 100] cm) | subgrupo_planossolo_mesicos |
| Subgrupo "endico" de Plintossolos Concrecionarios (topo de horizonte concrecionario >= 40 cm) | subgrupo_plintossolo_endico_concrecionario |
| Subgrupo "endico" de Plintossolos Litoplinticos (topo de horizonte litoplintico >= 40 cm) | subgrupo_plintossolo_endico_litoplintico |
| Subgrupo "espessos" de Plintossolos (horizonte plintico topo > 100 cm) | subgrupo_plintossolo_espessos |
| Sulfic Subgroup helper (Haplowassists) Pass when sulfidic materials within 100 cm. | sulfic_subgroup_usda |
| Sulfidic materials helper (USDA, KST 13ed Ch 3, p 49) | sulfidic_materials_usda |
| Sulfuric horizon helper (USDA, KST 13ed Ch 3) | sulfuric_horizon_usda |
| Takyric properties (WRB 2022 Ch 3.2.15) - per-pedon test wrapping 'test_takyric_surface'. | takyric_properties |
| Technic features (WRB 2022) | technic_features |
| Technic hard material (WRB 2022 Ch 3.3.18): consolidated human-made material (asphalt, concrete, worked stones). | technic_hard_material |
| Tephric material (WRB 2022 Ch 3.3.19): \>= 30% volcanic glass in 0.02-2 mm fraction AND no andic / vitric properties. | tephric_material |
| Terric horizon (WRB 2022): topsoil thickened by long-term application of mineral material (sediment / sand additions). v0.3.3: thickness >= 20 cm + designation Au / Apc. | terric |
| Terric Subgroup helper (Histels) | terric_usda |
| Test for an abrupt textural change between adjacent horizons | test_abrupt_textural_change |
| Test that aluminium saturation is at or above a threshold | test_al_saturation_above |
| Test that aluminium saturation is below a threshold | test_al_saturation_below |
| Test the andic Al/Fe oxalate criterion: (al_ox + 0.5*fe_ox) >= 2.0% | test_andic_alfe |
| Test that artefacts_pct >= threshold within the upper max_top_cm | test_artefacts_concentration |
| Test that base saturation is at or above a threshold | test_bs_above |
| Test that base saturation is below a threshold | test_bs_below |
| Test that bulk density is at or below a threshold | test_bulk_density_below |
| Test for CaCO3 concentration above threshold (per layer) | test_caco3_concentration |
| Test for any layer with caco3_pct above a (low) threshold | test_carbonates_present |
| Test for CaSO4 (gypsum) concentration above threshold (per layer) | test_caso4_concentration |
| Test CEC (1M NH4OAc, pH 7) per kg clay <= threshold | test_cec_per_clay |
| Test that CEC per kg clay is at or above a threshold | test_cec_per_clay_above |
| Test for chroma <= 2 (moist) within the upper part of the profile | test_chernic_color |
| Test that clay_pct is at or above a threshold | test_clay_above |
| Test the argic / argillic clay-increase criterion | test_clay_increase_argic |
| Test for coarse texture throughout the upper part of the profile | test_coarse_texture_throughout |
| Test that a horizon designation matches a regex pattern | test_designation_pattern |
| Test that duripan_pct >= threshold (Si-cemented nodules) | test_duripan_concentration |
| Test for electrical conductivity above threshold (per layer) | test_ec_concentration |
| Test effective CEC (sum of bases + Al) per kg clay <= threshold | test_ecec_per_clay |
| Test exchangeable sodium percentage above threshold | test_esp_above |
| Test for high free-iron content ('fe_dcb_pct' >= threshold) | test_fe_dcb_above |
| Ferralic texture: sandy loam or finer (same predicate as argic) | test_ferralic_texture |
| Ferralic minimum thickness >= 30 cm (WRB 2022) | test_ferralic_thickness |
| Test for fluvic stratification: irregular OC pattern + texture variability across consecutive horizons | test_fluvic_stratification |
| Test for gleyic redoximorphic features within top 50 cm | test_gleyic_features |
| Test minimum horizon thickness | test_minimum_thickness |
| Mollic base-saturation test (NH4OAc, pH 7, default >= 50%) | test_mollic_base_saturation |
| Mollic Munsell color test (WRB 2022) | test_mollic_color |
| Mollic organic-carbon test (WRB 2022, default >= 0.6%) | test_mollic_organic_carbon |
| Mollic structure test (WRB 2022) | test_mollic_structure |
| Mollic thickness test (default >= 20 cm in v0.1) | test_mollic_thickness |
| Test that organic carbon is at or above a threshold | test_oc_above |
| Test that ph_h2o is at or below a threshold | test_ph_below |
| Test for plinthite concentration above threshold (per layer) | test_plinthite_concentration |
| Test the salic horizon EC * thickness product (WRB 2022) | test_salic_product |
| Test for slickensides at or above a presence level | test_slickensides_present |
| Test the spodic Al/Fe oxalate criterion: (al_ox + 0.5*fe_ox) >= threshold | test_spodic_aluminum_iron |
| Test for stagnic redox features (perched water signature) | test_stagnic_pattern |
| Test sandy-loam-or-finer texture (used by argic, ferralic) | test_texture_argic |
| Test that a candidate layer starts at or above a top_cm threshold | test_top_at_or_above |
| NRCS texture-class shorthand from clay / silt / sand percent | texture_class_from_pct |
| Thaptic Subgroup helper (Andisols) Pass when, between 25 and 100 cm, a 10+ cm layer with OC > 3.0% and mollic colors exists, underlying lighter horizons. | thaptic_subgroup_usda |
| Thapto-Humic Subgroup helper | thapto_humic_usda |
| Thionic horizon (WRB 2022): post-oxidation acid sulfate horizon. Requires sulfidic_s_pct >= 0.01 AND pH(H2O) <= 4. | thionic |
| Train pre-trained PLSR models from an OSSL library | train_pls_from_ossl |
| Tsitelic horizon (WRB 2022 Ch 3.1) | tsitelic |
| Turbic Subgroup helper (Gelods) Pass when gelic materials are present within 200 cm. Implementation: cryoturbation + permafrost within 200 cm. | turbic_subgroup_usda |
| Ultic Subgroup helper: argillic or kandic (any BS). | ultic_subgroup_usda |
| Ultisol Order qualifier (USDA, KST 13ed, Ch 2) Pass when argillic OR kandic horizon present + BS < 35% in some part of the upper 200 cm. | ultisol_qualifying_usda |
| Ultisols (USDA Cap 15): argillic/kandic horizon + base saturation < 35%. | ultisol_usda |
| Umbric epipedon (USDA Soil Taxonomy, 13th edition) | umbric_epipedon_usda |
| Umbric horizon (WRB 2022) | umbric_horizon |
| Umbric Subgroup helper (in Spodosols) Pass when umbric_epipedon_usda passes. | umbric_subgroup_usda |
| USDA Soil Taxonomy <-> WRB Reference Soil Group correlation table | usda_to_wrb_rsg |
| Validate a PedonRecord against the JSON schema | validate_pedon_json |
| Vermic Subgroup helper (Vermudolls / Vermustolls) Pass when worm_holes_pct >= 50% in some horizon (KST 13ed worm burrow criterion). | vermic_subgroup_usda |
| Vertic Aridisols helper - delegates to vertic_subgroup_usda | vertic_aridisol_usda |
| Vertic horizon (WRB 2022 Ch 3.1) | vertic_horizon |
| Vertic properties (WRB 2022) | vertic_properties |
| Vertic Subgroup helper (USDA, KST 13ed) | vertic_subgroup_usda |
| Vertisol RSG gate (WRB 2022 Ch 4, p 101) | vertisol |
| Vertisol Order qualifier (USDA, KST 13ed, Ch 2 / Ch 3 vertic horizon) Pass when a vertic horizon (clay >= 30, cracks, slickensides, LE) is present. Delegates to WRB 'vertic_horizon'. | vertisol_qualifying_usda |
| Vertisols (USDA Cap 16): slickensides + cracks. Delegates to vertic_horizon. | vertisol_usda |
| Vertissolos (SiBCS Cap 4, p 112; conceito Cap 3, p 105-106) | vertissolo |
| Vertissolos Ebanicos (Cap 17): caracter ebanico em B (cores escuras dominantes). | vertissolo_ebanico |
| Vertissolos Haplicos (catch-all). | vertissolo_haplico |
| Vertissolos Hidromorficos (Cap 17): horizonte glei OR caracter redoxico. | vertissolo_hidromorfico |
| Vitrands qualifier (Cap 6, pp 117-118) Pass when 1500 kPa water retention < 15% (air-dried) and < 30% (undried) throughout 60%+ of the thickness. v0.8 proxy: uses water_content_1500kpa < 15%. | vitrand_qualifying_usda |
| Vitrandic Subgroup helper (USDA, KST 13ed) | vitrandic_subgroup_usda |
| Vitric properties (WRB 2022 Ch 3.2.16) | vitric_properties |
| Vitric Subgroup helper (Andisols) Pass when volcanic_glass_pct >= 30 in a 25+ cm layer within 100 cm. | vitric_subgroup_usda |
| Pick the best available VLM provider | vlm_pick_provider |
| Construct a VLM provider chat object | vlm_provider |
| Wassent Suborder qualifier (subaqueous Entisol). Pass when site$water_table_cm_above_surface > 0 (water column permanently above the surface). | wassent_qualifying_usda |
| Wassists Suborder qualifier (KST 13ed, Ch 10, p 203) | wassist_qualifying_usda |
| WRB 2006 RSG code -> 2022 RSG name | wrb06_code_to_rsg |
| WRB 2022 canonical reference (parsed IUSS Working Group WRB 2022) | wrb2022_canonical |
| Xanthic Subgroup helper (Oxisols) Pass when 50%+ colors have hue >= 7.5YR AND value >= 6 in B horizons. | xanthic_subgroup_usda |
| Yermic properties (WRB 2022 Ch 3.2.17) - per-pedon test wrapping 'test_yermic_surface'. | yermic_properties |
