@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix nalt: <https://lod.nal.usda.gov/nalt/> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix dc: <http://purl.org/dc/terms/> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
@prefix agrovoc: <http://aims.fao.org/aos/agrovoc/> .
@prefix ns0: <https://lod.nal.usda.gov/naltv#> .

<https://lod.nal.usda.gov/naltv#marc001> rdfs:label "Field 001 in MARC Authority Format"@en .
nalt:2772_def
  a <https://lod.nal.usda.gov/naltv#Definition> ;
  rdf:value "Medida de la actividad de los iones hidrógeno en solución, expresada mediante una escala que va de 0 (muy ácido) a 14 (muy básico). El pH 7.0 constituye una solución neutra, ni ácida ni básica."@es, "A measure of the hydrogen-ion activity in solution, expressed on a scale 0 (highly acid) to 14 (highly basic); 7.0 pH is a neutral solution, neither acid nor basic."@en ;
  dc:source "Schwarz, Charles F.; Thor, Edward C.; Elsner, Gary H. 1976. Wildland planning glossary. Gen. Tech. Rep. PSW-13. Berkeley, Calif.: U.S. Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station" .

<https://lod.nal.usda.gov/nalt>
  a skos:ConceptScheme ;
  rdfs:label "NALT Full"@en .

<https://lod.nal.usda.gov/naltv#Topic>
  a owl:Class ;
  rdfs:label "Topic"@en .

nalt:2772
  a skos:Concept, <https://lod.nal.usda.gov/naltv#Topic> ;
  dc:created "2006-01-19"^^xsd:date ;
  dc:modified "2018-10-19"^^xsd:date ;
  skos:altLabel "hydrogen ion concentration"@en ;
  skos:broader nalt:2828 ;
  skos:definition nalt:2772_def ;
  skos:exactMatch agrovoc:c_5753, <http://id.agrisemantics.org/gacs/C168>, <http://id.cabi.org/cabt/88049> ;
  skos:inScheme <https://lod.nal.usda.gov/nalt>, <https://lod.nal.usda.gov/nalt-core> ;
  skos:narrower nalt:2753, nalt:2736, nalt:323608 ;
  skos:prefLabel "pH"@en, "pH"@es ;
  skos:related nalt:10, nalt:325459, nalt:297135, nalt:214216, nalt:196, nalt:2742, nalt:2771 ;
  ns0:marc001 "27964" .

nalt:10
  a ns0:Chemical, skos:Concept ;
  skos:prefLabel "chemical bases"@en, "bases químicas"@es ;
  skos:related nalt:2772 .

nalt:325459
  a ns0:Topic, skos:Concept ;
  skos:prefLabel "índice amortiguador"@es, "buffer index"@en ;
  skos:related nalt:2772 .

nalt:297135
  a ns0:Chemical, skos:Concept ;
  skos:prefLabel "phenolsulfonphthalein"@en, "fenolsulfonftaleína"@es ;
  skos:related nalt:2772 .

nalt:323608
  a ns0:Topic, skos:Concept ;
  skos:broader nalt:2772 ;
  skos:prefLabel "pH stability"@en, "estabilidad del pH"@es .

nalt:2736
  a ns0:Topic, skos:Concept ;
  skos:broader nalt:2772 ;
  skos:prefLabel "pH del suelo"@es, "soil pH"@en .

nalt:214216
  a ns0:Topic, skos:Concept ;
  skos:prefLabel "tolerancia a los álcalis"@es, "alkali tolerance"@en ;
  skos:related nalt:2772 .

nalt:2753
  a ns0:Topic, skos:Concept ;
  skos:broader nalt:2772 ;
  skos:prefLabel "pH sanguíneo"@es, "blood pH"@en .

nalt:196
  a ns0:Chemical, skos:Concept ;
  skos:prefLabel "acidulantes"@es, "acidulants"@en ;
  skos:related nalt:2772 .

nalt:2742
  a ns0:Topic, skos:Concept ;
  skos:prefLabel "acidificación"@es, "acidification"@en ;
  skos:related nalt:2772 .

nalt:2828
  a ns0:Topic, skos:Concept ;
  skos:narrower nalt:2772 ;
  skos:prefLabel "propiedades fisicoquímicas"@es, "physicochemical properties"@en .

nalt:2771
  a ns0:Topic, skos:Concept ;
  skos:prefLabel "deacidificación"@es, "deacidification"@en ;
  skos:related nalt:2772 .