@prefix agrovoc: <http://aims.fao.org/aos/agrovoc/> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix ns0: <http://art.uniroma2.it/ontologies/vocbench#> .
@prefix dc: <http://purl.org/dc/terms/> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .

agrovoc:xDef_68471679
  rdf:value "A layer or combination of layers of pervious materials designed and installed so as to separates solids from fluids (liquids or gases) by adding a medium through which only the fluid can pass."@en ;
  ns0:hasSource "Adapted from Nijland, H.J., F.W. Croon and H.P. Ritzema, 2005. Subsurface Drainage Practices: Guidelines for the implementation, operation and maintenance of subsurface pipe drainage systems. Wageningen, Alterra, ILRI Publication no. 60, pp. 608. https://edepot.wur.nl/264729 and https://en.wikipedia.org/wiki/Filter" ;
  dc:created "2024-09-27T17:04:15"^^xsd:dateTime .

agrovoc:c_24839 skos:definition agrovoc:xDef_68471679 .