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Résumé :
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The relationship between radial growth of Aleppo pine (Pinus halepensis Mill.) in Greece and climate is calculated for the period 1955-1989. Fourteen populations are selected to represent at best the distribution area of Aleppo pine in Greece. The climate parameters used are monthly precipitation and mean monthly minimum and maximum temperatures, from four meteorological stations chosen, after principal component analysis, for their suitability to express the local climate of the forest sites. Response functions are used to express the relationship between tree-ring width and climate, and were computed using Bootstrapped Orthogonal Regression. Results show that ring width correlates positively to winter precipitation, (December, January), and spring (April, May) precipitation, and negatively to spring temperature (April, May). These relationships slightly differ according to geographical location of the populations. They emphasise the role of water storage during winter dormancy and that of evapotranspiration processes during the initial growth period in spring.
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