Comparative study of some species of the genus Acer L. in the Hirkan flora using dendrochronological methods

Recently, due to global climate change and unregulated human economic activities, biodiversity has significantly degraded, which has led to changes and reductions in the ranges of species. Observations show that there is no comprehensive conservation strategy to protect certain regions where rare and endangered species of woody plants of the flora of Azerbaijan live. With the increase in the number of rare species and the decrease in the number of endangered plants, identifying the causes of these problems and preventing their further degradation is an urgent issue for both government agencies and scientific institutions. The main objective of this scientific study is to conduct a biometric and dendrochronological analysis of the processes occurring in the populations of rare species of the Hirkan flora. The study also includes monitoring the areas where rare and endangered species are found and developing action plans to assess and protect these ecosystems. The article presents studies conducted on samples of old species Acer hyrcanum and Acer mono, selected from the flora of Hyrcanus. Comparative analysis of the species was carried out using dendrochronological methods. Modern equipment was used to determine the age of species, study the dynamics of their development and assess the impact of environmental factors on them. As is known, woody plants experience radial and vertical growth, forming annual rings, although there are exceptions due to a number of complex factors. Among them, climatic conditions, habitat features, as well as genetic and age characteristics of plants play a particularly important role.

Ədəbiyyat siyahısı

1. Resad, Selimov., & Oruc, Ibadli. In Situ and Ex Situ Conservation of Rare and Endangered Geophytes of the Hirkan National Park (Azerbaijan). Journal of Plant Development, 20. (2013).
2. Samira, B., Minara, H., Leila, A., Aliyeva, S., & Bedel-Zade, N. analysis of the natural and cultural dendroflora of the north-western zone of the greater caucasus. Scıences and practıces, 8(8), 25-32. (2022).
3. Mammadov, T., Iskender, E., & Novruzov, V. The Comparative Monitoring of Endem Rare and Endangered Trees and Shrubs in Azerbaijan. International Journal of Farma Medicine and biological Sciences, Vol. 6(1), pp.24-28. (2017).
4. Safarov, H. M. Rare and endangered plant species in hirkan national park and its environs. status and protection of globally threatened species in the caucasus, 193. (2009).
5. Mammadov, T. S., & Gulmammadova, S. A. Historical research in the Institute of Dendrology NAS of Azerbaijan. Journal of Native and Alien Plant Studies, (18), 114-126. (2022).
6. Coulthard B. L, Smith D.J., Dendrochronology in encyclopedia of quaternary science (second edition), (2013).
7. Cook, E. R., & Kairiukstis, L. A. (Eds.). Methods of dendrochronology: applications in the environmental sciences. Springer Science & Business Media. (2013).

BIO Web of Conferences 151, 04023 (2025) https://doi.org/10.1051/bioconf/202515104023
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8. Cook, E. R., Briffa, K. R., Meko, D. M., Graybill, D. A., & Funkhouser, G. The'segment length curse'in long tree-ring chronology development for palaeoclimatic studies. The Holocene, 5(2), 229-237. (1995).
9. Fonti, P., & García‐González, I. Suitability of chestnut earlywood vessel chronologies for ecological studies. New Phytologist, 163(1), 77-86. (2004).
10. Campelo, F., García-González, I., Nabais, C. detrendeR - a graphical user interface to process and visualize tree-ring data using R. Dendrochronologia, 30(1), 57-60. (2012).
11. Schweingruber, F. H. Tree rings: basics and applications of dendrochronology. Springer Science & Business Media. (2012).
12. Schweingruber, F. H. Wood structure and environment. Springer Science & Business Media. (2007).
13. Herrera‐Ramirez, D., Andreu‐Hayles, L., Del Valle, J. I., Santos, G. M., & Gonzalez, P. L. Nonannual tree rings in a climate‐sensitive Prioria copaifera chronology in the Atrato River, Colombia. Ecology and Evolution, 7(16), 6334-6345. (2017).
14. Rinn, F. TSAP. Version 3.0 Reference manual computer program for time series analysis and presentation copyright Frank Rin Distrubution. (1996).
15. Wimmer, R. Wood anatomical features in tree-rings as indicators of environmental change. Dendrochronologia, 20(1-2), 21-36. (2002).
16. Bagirova, S. B., Ataeva, H. M., Rasulova, A. G., & Mirjalalli, I. B. The study of the radial growth of the flora species which do not have special protection on the southern hillsides of Greater Caucasus. Journal of advances in Natural Sciences, 7, (2020). 1-10.
17. Behbud, B. S. The Research of the Radial Growth of the Flora Species Which Do Not Have Special Protection on the South Hillsides of Greater Caucasus. (2020).
18. Bagirova, S., Hasanova, M., Rasulova, A., Ataeva, L., & Shukurova, N. Azerbaycan cumhuriyetinin hirkan florasının dendroflorası ve bazı türlerin dendrokronolojik ı̇ncelemesi. Bağbahçe bilim dergisi, 8(2), 43-55. (2021).
19. Tofik, M., Rasulova, A., & Samira, B. Comparative Analysis of Rare and Endangered Plants of Hirkan Dendroflora. Science and Practice Bulletin, 7(4), 37-44. (2021).