Abstract
A dendrochronological study was carried out with information obtained from the forest plantation of the TecnológicoNacional de México Campus Zitácuaro, where a sample of five trees of the species Pinus pseudostrubus was taken on June 3,2021 and the samples were transferred to the Laboratory of the Faculty of Forest and Environmental Sciences (FCFyA)from the Universidad Juárez del Estado de Durango (UJED) in October 2023. The tree samples were sanded to facilitateobservation of the growth rings, and a stereoscope was used to examine them in detail and precision, in addition, the Velmex"TA" system was used to take measurements of the growth rings, calculating the Annual Current Increase (ICA) and theAverage Annual Increase (IMA). This process included identifying false rings or fluctuations through cuts in the woodslices. The data collected allowed us to understand the growth history of the trees and their response to environmentalconditions.
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