Historical study of the importance of the outfields economically and socially in Taagdalen nature preserve for the Dalsegg farms in Oevre Surnadal

alimentation des animaux animal feeding browse plants comportamiento humano comportement humain conservation du paysage economic value feed grasses forraje grosero fourrage grossier grasslands herbage histoire historia history human behaviour landscape conservation marginal land mejora de pastizales nature reserves noruega norway pastizales pasture improvement pastures petite exploitation agricole plantas de ramoneo plante d'abroutissement praderas reservas naturales roughage small farms social values terre marginale tierras marginales usufruct usufructo usufruit valeur sociale valores sociales