Miombo trees and mycorrhizae: ecological strategies, a basis for afforestation

afzelia arbre forestier biomasa biomass biomasse brachystegia champignon drought stress experimentation forest trees fungi growth rate hongos indigenous organisms inoculation mycorrhizae pepiniere pinus plant nurseries pterocarpus angolensis root pruning root systems sistema radicular soil sol suelo taille des racines taux de croissance trial methods viveros woodlands