Quantitative effect of climate change on the phenological calendar of flowering and fruiting of seven forest species in a forest established in the San Martín region
DOI:
https://doi.org/10.51252/reacae.v1i1.287Keywords:
pluvial precipitation, relative humidity, specie, temperatureAbstract
We seek to determine the quantitative effects of climate change on the phenological calendar of flowering and fruiting of seven forest species: Capirona, Shaina, Bolaina, Marupa, Teak, Eucalyptus and Pink cedar, during the 2013-2015 period. The evaluations comprised 35 individuals observed for a period of 24 months, using the methodology proposed by Fournier. We found that climate change has generated significant effects in the advancement of the phenological calendar of flowering and fruiting in the Calycophyllum spruceanum and Simarouba amara species, and in the delay in the Colubrina glandulosa and Guazuma crinita species; in addition, a great variability in the phenophases of the species of Tectona grandis and Eucalyptus globules. Due to their adaptation, acclimatization and habitat, they presented a complete phenological cycle, with the exception of Acrocarpus fraxinifolius. Flowering and fruiting are influenced by the variable temperature with a permissible range of 21.3 ºC to 33.3 ºC according to the maximum, minimum and average temperature of the established period, and with respect to the historical pattern 1981-2010 anomalies of 0.5 ° C were registered, 0.4 ° C, and 0.2 ° C, respectively. The quantitative statistical model of correlation, analysis of the Chi square distribution and the Coefficient of determination, found a weak to moderate positive association relationship
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