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	mads.xsd"><authority><topic authority="http://www.serbi.ula.ve/tematres/vocab/">SUELOS</topic></authority><related type="narrower"><topic>ALUVION</topic></related><related type="narrower"><topic>ARCILLA</topic></related><related type="narrower"><topic>ARENA</topic></related><related type="narrower"><topic>CAPILARIDAD DEL SUELO</topic></related><related type="narrower"><topic>COBERTURA VEGETAL</topic></related><related type="narrower"><topic>COMPOST</topic></related><related type="narrower"><topic>CORAZAS FERRALITICAS</topic></related><related type="narrower"><topic>CULTIVOS Y SUELOS</topic></related><related type="narrower"><topic>DRENAJE</topic></related><related type="narrower"><topic>EROSION</topic></related><related type="narrower"><topic>ESTRUCTURA DEL SUELO</topic></related><related type="narrower"><topic>FERTILIZANTES</topic></related><related type="narrower"><topic>FISICA AGRICOLA</topic></related><related type="narrower"><topic>HUMUS</topic></related><related type="narrower"><topic>LABRANZA</topic></related><related type="narrower"><topic>LATERITA</topic></related><related type="narrower"><topic>NITRIFICACION</topic></related><related type="narrower"><topic>PERMEABILIDAD DEL SUELO</topic></related><related type="narrower"><topic>QUEMA DE TIERRAS</topic></related><related type="narrower"><topic>QUIMICA AGRICOLA</topic></related><related type="narrower"><topic>RECUPERACION DE TIERRAS</topic></related><related type="narrower"><topic>SUELOS ALCALINOS</topic></related><related type="narrower"><topic>SUELOS FORESTALES</topic></related><related type="narrower"><topic>TEMPERATURA DEL SUELO</topic></related><related type="narrower"><topic>Textura del suelo</topic></related><related type="other"><topic>AGRICULTURA</topic></related><related type="broader"><topic>GEOLOGIA ECONOMICA</topic></related><variant type="other"><topic>Suelos vegetales</topic></variant><variant type="other"><topic>Tierras vegetales</topic></variant></mads>