@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 ns0: <https://lod.nal.usda.gov/naltv#> .

<https://lod.nal.usda.gov/naltv#marc001> rdfs:label "Field 001 in MARC Authority Format"@en .
nalt:191243_def
  a <https://lod.nal.usda.gov/naltv#Definition> ;
  rdf:value "Diferencia entre la cantidad de carbono orgánico fijado en un ecosistema mediante la fotosíntesis (productividad primaria bruta) y la respiración total del ecosistema. La PNE representa la cantidad total de carbono orgánico que se podría almacenar o perder en el ecosistema. Ya sea mayor o inferior a cero, la PNE determina si un ecosistema es autrófico o heterotrófico."@es, "The difference between the amount of organic carbon fixed in an ecosystem by photosynthesis (gross primary productivity) and total ecosystem respiration. NEP represents the total amount of organic carbon available for storage or loss in the ecosystem. Whether NEP is greater or less than zero determines if an ecosystem is autrophic or heterotrophic."@en ;
  dc:source "NAL Thesaurus Staff" .

<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:191243
  a <https://lod.nal.usda.gov/naltv#Topic>, skos:Concept ;
  dc:created "2012-09-12"^^xsd:date ;
  dc:modified "2013-02-05"^^xsd:date ;
  skos:altLabel "NEP (net ecosystem production)"@en, "net ecosystem productivity"@en ;
  skos:broader nalt:356 ;
  skos:definition nalt:191243_def ;
  skos:inScheme <https://lod.nal.usda.gov/nalt> ;
  skos:prefLabel "producción neta del ecosistema"@es, "net ecosystem production"@en ;
  skos:related nalt:43058, nalt:142663, nalt:362, nalt:189757 ;
  ns0:marc001 "61566" .

nalt:43058
  a ns0:Topic, skos:Concept ;
  skos:prefLabel "global carbon budget"@en, "presupuesto global del carbono"@es ;
  skos:related nalt:191243 .

nalt:142663
  a ns0:Topic, skos:Concept ;
  skos:prefLabel "net ecosystem exchange"@en, "intercambio neto del ecosistema"@es ;
  skos:related nalt:191243 .

nalt:362
  a ns0:Topic, skos:Concept ;
  skos:prefLabel "productividad primaria"@es, "primary productivity"@en ;
  skos:related nalt:191243 .

nalt:189757
  a ns0:Topic, skos:Concept ;
  skos:prefLabel "ecosystem respiration"@en, "respiración del ecosistema"@es ;
  skos:related nalt:191243 .

nalt:356
  a ns0:Topic, skos:Concept ;
  skos:narrower nalt:191243 ;
  skos:prefLabel "procesos y fenómenos ecológicos"@es, "ecological processes and phenomena"@en .