@prefix envthes: <http://vocabs.lter-europe.net/EnvThes/> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix dc: <http://purl.org/dc/terms/> .

envthes:
  skos:prefLabel "EnvThes"@en ;
  a skos:ConceptScheme .

envthes:20863
  skos:inScheme envthes: ;
  a skos:Concept ;
  skos:scopeNote "US LTER controlled vocabulary"@en ;
  skos:exactMatch <https://vocab.lternet.edu/vocab/vocab/?tema=592> ;
  skos:definition "The total phosphorus test measures all the forms of phosphorus in the sample (orthophosphate, condensed phosphate, and organic phosphate). This is accomplished by first \"digesting\" (heating and acidifying) the sample to convert all the other forms to orthophosphate. Then the orthophosphate is measured by the ascorbic acid method. Because the sample is not filtered, the procedure measures both dissolved and suspended orthophosphate."@en ;
  skos:broader envthes:20935 ;
  skos:prefLabel "total phosphorus"@en ;
  dc:creator "herbert.schentz@umweltbundesamt.at"@en .

envthes:20935
  skos:prefLabel "variable"@en ;
  a skos:Concept ;
  skos:narrower envthes:20863 .