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Climatic response of Pinus cooperi radial growth in Durango, Mexico
Presented by Ms. Julián CERANO-PAREDES on 15 May 2013 from 18:00 to 21:00
Type: Poster Presentation
Session: Poster Session + Reception
Board #: 40
With the objective to increase the network of climate-sensitive chronologies in Mexico, the dendroclimatic potential of Pinus cooperi a conifer species distributed in the western section of Durango, Mexico was analyzed. Increment cores were taken from selected trees along an altitudinal gradient (2300 to 2900 m). Increment core samples were successfully dated by standard dendrochronological techniques and six rign-width chronologies were developed. The PCA grouped the 2700-2910 m elevation chronologies into PC2 and those from 2350 to 2450 m into PC1. The PC2 chronologies were used to develop a representative chronology for the upper elevation and PC1 for the lower elevation. Representative upper elevation chronology responded to average monthly temperature for the winter season (r= 0.75, p<0.001, n= 37) and lower elevation chronology was related to total winter-spring precipitation (r= 0.704, p<0.001, 1966-1998, n= 33). The species has the potential to reconstruct either temperature or precipitation depending on elevation.