Schueller J. (1995). Comparaison dendroécologique de trois pinèdes de Pin
à crochets (Pinus uncinata Mill. ex Mirb.) dans les Alpes occidentales
externes, intermédiaires et internes. Dendrochronologia, 13,
- TITLE Dendroecological comparison of three
mountain pine forests (with Pinus uncinata Mill. ex Mirb.) in the
occidental Alps, in the external, intermediate and internal areas.
- LANGUAGE French
- SUBJECT Ecology, tree growth, response to
- KEY WORDS Pin, Zones climatiques
- SPECIES Pinus uncinata Mill. ex Mirb.
- SITES Corrençon en Vercors, Chamrousse,
Massif de Belledonne, Briançonnais, South-East of France, Alps.
Three mountain pine forests (with Pinus uncinata Mill. ex Mirb.) are
compared with dendroecological methods in the three main bioclimatical areas
in the occidental French Alps. They are respectively situated in Corrençon in
the external rainy area (Vercors), in Chamrousse in the middle area
(Belledonne), and in Briançon in the internal dry area. The radial growth as
a function of age shows a similar low level for the two former sites, whereas
a greater productivity is observed in the internal Alps. The mean sensitivity
of the tree-rings decreases at the same time, while the first order
autocorrelation coefficients increase. Thus, both the highest responses to
high temperature during previous summer and the current spring precipitations
influence are observed in Corrençon. The optimal rate of growth of the
mountain pine seems to be located in the internal area.