Partial cutting in Norway spruce: impacts on advance regeneration and residual stand

analyse de tissus chemical composition ciclo de corta composition chimique coniferous forests corta selectiva coupe de jardinage estado nutricional felling cycle feuille forest stands forestry operations hojas leaves mechanical damage mejoramiento del rodal mortalidad mortalite mortality noruega norway nutritional status operaciones forestales peuplement forestier picea abies plant competition rebrote regeneration regrowth repousse rodales rotation de coupe selective felling stand improvement tissue analysis