ecologia mediterranea – Vol. 33 – 2007 43 Résumé
René GUENON, Florence RUAUDEL et Raphaël GROS*
Institut méditerranéen d’écologie et de paléoécologie, UMR CNRS 6116, Université Paul Cézanne Aix-Marseille 3, Faculté des sciences et techniques de Saint-Jérôme, Laboratoire d’écologie microbienne, Case 452, 13397 Marseille cedex 20
* Auteur correspondant : raphael. gros@ univ-cezanne. fr, tel : 04 91 28 87 68
Abstract
add up and control the dynamics of the microbial enzymatic activity, of the nitrogen mineralisation, and of the microbial functional diversity. The preservation of the mixed-pine forest ecosystem appears to be an interesting forestry alternative to improve the long dated microbial functioning and potential productivity of the forest.
Version anglaise abrégée
Since the end of the 19th century, the forestry practices and the increasing fire frequency lead, in French Mediterranean basin, to an expansion of the Allepo pine (Pinus halepensis
Mill.) (Quézel 2000). The ecological consequences which result from the homogenisation of the forest landscape are the loss of biological diversity (Médail & Quézel 1999) and a decrease of the dynamic of organic matter cycling and thus of nutrients availability (Prescott 2002). This work aims to understand the role of the biochemical characteristics (i. e. Arguments fonctionnels
pour la conservation de la mixité forestière méditerranéenne
Functional arguments for the conservation of mixed Mediterranean forest stands
