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 Printable version |
Productivity in natural stands of Aleppo pine
(Pinus halepensis Miller) in Tamga forest (High Atlas, Morocco) |
Cahiers Agricultures. Volume 9, Number 1, 39-46, Janvier - Février 2000, Méthodes et techniques
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 Résumé
Article gratuit
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Author(s) : Bakhiyi Belghazi, Mustapha Ezzahiri, François Romane |
Summary : Natural stands of Aleppo pine (Pinus halepensis Miller) are quite rare in Morocco, whereas vast areas are planted with this species within the framework of reforestation projects. The largest natural stands, which are located in the Tamga region (High Atlas), were studied to assess productivity and determine the potential role of this species in afforestation schemes in Morocco. A site index (dominant height at 60 years) was drawn up and evaluated for Tamga forest. The productivity was found to be quite high in relation to results usually obtained for this tree species. Three significantly different classes were noted for 60-year-old trees (reference age) in terms of productivity, i.e. 1.4, 0.9 and 0.7 m3.ha–1 for productivity classes 1 to 3 respectively. We also used the ecological profile technique and correspondence analysis to identify – for each class in the site index – the main corresponding environmental factors and related plant species groups. Productivity classes 1 and 3 were closely correlated with a specific group of plant species, which could be useful for improving the management of these forests. It was more difficult to find a group that corresponded to class 2. |
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