La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Modelling height growth of Aleppo pine (Pinus halepensis Mill.) in the French Mediterranean region
Auteurs :	Cyrille Rathgeber, Auteur ; Laurence Blanc, Auteur ; Christian Ripert, Auteur ; Michel Vennetier, Auteur
Type de document :	Article
Dans :	Ecologia Mediterranea (30(2) 2004)
Article en page(s) :	205-218
Résumé :	This work is the fist step of a study dedicated to Aleppo pine (Pinus halepensis Mill.) autecology in the French Mediterranean region. Its main goal is to propose a reliable model of tree's height growth. Height growth curves were constructed with 113 stem analysis out of 46 stands, representative of growth condition in the studied area. Ten height growth models were adjusted to these data and compared. The most suitable model is of the type Duplat and Tran-Ha:[GRAPHICS]With h: tree height; a, c and d parameters with the same value for all curves (c > 0 and d > 1) and b(i) parameter associated with the ith curve, and related to tree growth rate. The selected model allows attributing to each tree a growth index (h50), which represent the tree height at 50 years. In the following part of the autecological study, an analysis of the h50 will provide a fertility index for each studied site.

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