论文信息 - Aboveground biomass relationships for mixed ash (Fraxinus excelsior L. and Ulmus glabra Hudson) stands in Eastern Prealps of Friuli Venezia Giulia (Italy)

Aboveground biomass relationships for mixed ash (Fraxinus excelsior L. and Ulmus glabra Hudson) stands in Eastern Prealps of Friuli Venezia Giulia (Italy)

Environ 5 % de la surface forestiere de Friuli Venezia Giulia (Italie) est constituee de peuplements de frene en melange avec d'autres essences. Dans la plupart des cas, ce sont des forets secondaires installees sur des pâturages et des prairies au cours des cinquante dernieres annees. Elles constituent une importante ressource economique. Cet article presente les equations allometriques pour l'estimation de la biomasse aerienne pour le frene (Fraxinus excelsior L.) et pour l'orme de montagne (Ulmus glabra Hudson). Le diametre a hauteur de poitrine explique la majeure partie de la variabilite des variables suivantes: volume total de la tige, biomasse aerienne totale, biomasse de la tige, biomasse des branches et des feuilles. La variation de la densite de la tige avec la hauteur et l'indice foliaire (LAI) ont aussi ete consideres.

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