The article studies the issues of natural distribution, current state and restoration of chestnutleaved oak (Quercus castaneifolia C.A.Mey) in forest ecosystems of the Greater Caucasus in the territory of Azerbaijan.The research was conducted in the Ismailli district, and according to generally accepted methods, the following were determined: the main characteristics of oak trees; the quality of trees was diagnosed according to the condition index; the number of seedlings of this species was determined according to the "success assessment" scale; work was carried out in the Galynchak forest area of the Ismailli district to promote the natural restoration of this species.As a result of the work, it was revealed that in all areas, mature and overmature trees are common, young and middle-aged trees are absent, and ripening ones are only singly present.The qualitative condition of these trees varies from damaged to poor.The success of natural restoration is assessed as unsatisfactory.In terms of restoration assistance, it was established that at the end of the 5th year the number of seedlings increased by about 2 times, which makes it possible to restore the chestnut-leaved oak and preserve the biodiversity of forest ecosystems in this area.eywords: condition index, number of seedling, quality of tree, promotion of regeneration, relict species
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Yahyayev et al. (2025) studied this question.