Abiotic factors effect research on the radial growth of Pinus eldarica Medw.

On the basis of dendrochronological studies conducted in three geographical areas with different soil and climatic conditions in the Southern foothills of the Greater Caucasus zone in the territory of the Republic of Azerbaijan, the dynamics of the width of the trunk rings of the Pinus eldarica Medw species was analyzed. The experiments were carried out in areas where climate variability is more pronounced, and during of the research it was revealed that the role of climate variability in the life cycle of the selected species Pinus eldarica Medw. in the tracked time interval equal to 40 years, it was 16.7%. Within the framework of the applied model considerations, it was also reaveled that models that take into account only biotic factors are 1.48 times lower than models that take into account biotic and abiotic factors simultaneously. The total role of abiotic factors in the life cycle of the selected species was 29.4 %. The chosen model in the next 10 years takes into account the influence of both biotic and abiotic factors with a constant integral influence on the life cycle and on the radial growth of the species Pinus eldarica Medw. fluctuation processes equal to 16.7% (climate variability) on the life cycle for a period of 50 years. In our opinion, quantifying the role of temperature variability on the overall growth dynamics is an element of a certain novelty in this direction.