Der Forstbetriebsdienst Bd. 1: Waldaufbau.

agentes nocivos agua alemania allemagne animal nuisible animales nocivos arbre forestier classification des sols clima climat climate conservation de la nature control de plagas damage eau facteur nuisible forest ecology forest management forest protection forest soils forest stands forest trees germany habitat habitats injurious factors loisir lutte antiravageur nature conservation noxious animals pest control peuplement forestier recreation regional planning rodales silvicultura silvicultural systems silviculture sistemas silviculturales site factors soil classification soil types suelo forestal sylviculture type de sol water