Publications des scientifiques de l'IRD

Antin C., Pélissier Raphaël, Vincent Grégoire, Couteron Pierre. (2013). Crown allometries are less responsive than stem allometry to tree size and habitat variations in an Indian monsoon forest. Trees : Structure and Function, 27 (5), p. 1485-1495. ISSN 0931-1890.

Titre du document
Crown allometries are less responsive than stem allometry to tree size and habitat variations in an Indian monsoon forest
Année de publication
2013
Type de document
Article
Auteurs
Antin C., Pélissier Raphaël, Vincent Grégoire, Couteron Pierre
Source
Trees : Structure and Function, 2013, 27 (5), p. 1485-1495 ISSN 0931-1890
While theoretical allometric models postulate universal scaling exponents, empirical relationships between tree dimensions show marked variability that reflects changes in the biomass allocation pattern. As growth of the various tree compartments may be controlled by different functions, it is hypothesized that they may respond differently to factors of variation, resulting in variable tree morphologies and potentially in trade-offs between allometric relationships. We explore the variability of tree stem and crown allometries using a dataset of 1,729 trees located in an undisturbed wet evergreen forest of the Western Ghats, India. We specifically test whether species adult stature, terrain slope, tree size and crown light exposure affect the relationships between stem diameter and stem height (stem allometry), and between stem diameter and crown width, crown area and crown volume (crown allometries). Results show that both stem and crown allometries are subject to variations in relation to both endogenous (tree size, species adult stature) and exogenous (terrain slope, crown light exposure) factors.
Plan de classement
Biométrie [020STAT05] ; Formations végétales [082VEGET02]
Descripteurs
ARBRE FORESTIER ; ZONE TROPICALE ; MESURE ; ALLOMETRIE ; TRONC ; LUMIERE ; EXPOSITION ; PENTE ; ETUDE COMPARATIVE ; TAILLE
Description Géographique
INDE
Localisation
Fonds IRD [F B010058301]
Identifiant IRD
fdi:010058301
Contact