Article
Quelques résultats obtenus par l’analyse de l’information mutuelle sur les observations phyto-écologiques recueillies dans la vallée des AïtBou-Guemmez (Haut Atlas, Maroc)
Quelques résultats obtenus par l’analyse de l’information mutuelle sur les observations phyto-écologiques recueillies dans la vallée des AïtBou-Guemmez (Haut Atlas, Maroc)
The The high valley of the Aït-Bou-Guemmez is right in the center of the High Atlas and is entirely located between 1800 m and 3729 m a.s.l. From the ecological point of view its hypsometrics determine the occurrence of a peculiar biotope distribution in which higher Mediterranean, Mountainous Mediterranean and Oromediterranean vegetation belt are well represented. Moreover, owing to the general or local relives, altitudinal vegetation ditribution is also influenced by the exposition of slopes. Taking into account the above factors, a survey of the region has been carried out following an oriented transect, which is representative of the strong climatic gradients. General indications provided by vegetation are included in the realization of a linear phyto-environmental sampling. The study of plant distribution and the calculation of mutual mean information species-variables has allowed us to specify nature and field of these climatic gradients
