Pinus brutia var. pityusa (Steven) Silba seasonal growth dynamics in Crimean Mountains
- Authors: Makarov N.A.1, Koba .P.1
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Affiliations:
- Nikita Botanical Gardens — National Scientific Center of the Russian Academy of Sciences
- Issue: Vol 28, No 2 (2024)
- Pages: 45-54
- Section: Biological and technological aspects of forestry
- Published: 15.04.2024
- URL: https://journals.eco-vector.com/2542-1468/article/view/706751
- DOI: https://doi.org/10.18698/2542-1468-2024-2-45-54
- ID: 706751
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Full Text
Abstract
In the western and eastern territories, P. brutia var. pityusa in the Crimean Mountains, four hypsometric profiles were used to establish trial plots. Seasonal growth of shoots was measured on trial plots near model trees. The purpose of the research was to study the biometric parameters of shoots in natural stands of P. brutia var. pityusa in the Crimean Mountains, analysis of the specifics of their seasonal growth depending on the dynamics of growing conditions. As a result of the research, it was found that the seasonal growth of shoots in plantations of P. brutia var. pityusa in the Crimean Mountains varies markedly due to the peculiarities of the orographic conditions and the moisture regime. It has been established that in the western part of the distribution of P. brutia var. pityusa, in the Ayazma tract, in years with low rainfall, the seasonal increase in shoots decreases, to the greatest extent in the plantations of the coastal zone. The prolongation of the drought effect on the growth intensity in the forest stands of the coastal zone of the Batiliman tract and in the upper belt of the Ayazma tract in the first year of the post-drought period was revealed. At present, in terms of the magnitude of seasonal growth of shoots, the most severe conditions for the growth of P. brutia var. pityusa are formed in Mount Karaul-Oba. In the western part of its distribution in the Crimean Mountains, in the Batiliman tract, an increase in the amplitude of the variability of the seasonal growth of shoots is observed due to an increase in the level of climatic factors fluctuation. It is shown that this situation reflects negative trends in the decline in the life potential of P. brutia var. pityusa city of Karaul-Oba and the natural boundary of Batiliman. It is concluded that under the conditions of global changes in the natural environment, this can enhance destructive processes in plantations of P. brutia var. pityusa within the above-mentioned areas.
Keywords
About the authors
Nikita A. Makarov
Nikita Botanical Gardens — National Scientific Center of the Russian Academy of Sciences
Email: makarov.crimea@yandex.ru
pg. of the Laboratory of Forest Science
Russian Federation, 52, Nikitsky descent, 298648,Yalta, Republic of CrimeaVladimir P. Koba
Nikita Botanical Gardens — National Scientific Center of the Russian Academy of Sciences
Author for correspondence.
Email: kobavp@mail.ru
Dr. Sci. (Biology), Professor, Head of the Laboratory of Forest Science
Russian Federation, 52, Nikitsky descent, 298648,Yalta, Republic of CrimeaReferences
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