Abstract
Phenological observations gathered from a network established in Québec since 1971 have been used to achieve a phenoclimatic regionalization of the agricultural territory. In order to verify that these zones reflect climatic differences and, if they do, to understand the nature of these differences, we have performed multivariate analyses combining phenological and meteorological data. Phenological zonation emphasizes a thermal gradient related to plant location. Thermal contrasts among zones are greatest in spring whereas equalization occurs during the summer. These results stress the importance of spring climatic conditions on plant adaptation in a temperate climate. Phenological classification of meteorological records with the use of discriminant functions presents a valuable approach to assess the influence of climatic variability on plant acclimation potential. This study confirms the complementarity assumption between climate and phenology and illustrates the usefulness of phenological information to characterize the bioclimatic potential of a territory.
Published Version
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