Abstract
The Babor forest is situated in the central part of north Algeria. It is dominated by two conifers, namely Cedrus atlantica and the endemic fir Abies numidica, as well as one decidious oak Quercus faginea. The percentage of conifers increases on higher altitude while around the top (~ 2000 m) the oak totally disappears. Between 1650 and 1950 m a mixture of the above-mentioned species occurs; although they may grow in equal proportions, oak and fir are more widespread. The distribution of the different forest types is shown on a map and the applied classification is compared with two other types of classifications, mentioned in the literature. The forest structure of the oak-fir-cedar type has been illustrated by two drawings, each with the horizontal and vertical projection of a transect. The behaviour of each of the six main species has been analysed in terms of their role in forest dynamics. Some propositions were made for the procedure of the fundamental research to be done in the near future.
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