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mads.xsd"><authority><topic authority="http://roble.intecca.uned.es/tematres/lem/">Suelos-Conservación</topic></authority><related type="other"><topic>Labranza</topic></related><related type="other"><topic>Rotación de cultivos</topic></related><related type="other"><topic>Nivelación de tierras</topic></related><related type="other"><topic>Repoblación forestal</topic></related><related type="other"><topic>Recuperación de tierras</topic></related><related type="other"><topic>Suelos-Erosión</topic></related><variant type="other"><topic>Conservación del suelo</topic></variant></mads>