Özet:

Oaks are a highly significant tree species for Turkey forestry both in terms of the area they cover and species diversity. According to the 2020 inventory, oak forests span 6,747,440 hectares (ha), accounting for 29.42% of the country’s total forest area. In this study, yield tables dependent on 5 site index classes and 7 density degrees up to 20 years of age have been established for naturally distributed, sprout-originated, non-intervened, pure and even-aged young Hungarian oak stands. The yield table values arranged for non-intervened stands are important in terms of revealing the origin of forests, the past structure of the stands, and the realization of the intended establishment of the intervened stands. For this purpose, 22 sample areas with sizes of 100 m2 and 200 m2 were taken from Bursa, Balıkesir, Çanakkale, Istanbul and Sakarya Regional Directorates Forestry. Stand volume and volume components of Hungarian oak were investigated as functions of age, site index and density. The distribution of sample areas in the 0-20 age range into site classes I-V occurred as 6, 9, 6, 0 and 1, respectively. In the arranged Hungarian oak yield tables, for non-intervened stands with I. site index and 1.0 density class at age 20, the basal area per hectare is determined as 24.44 m², the volume amount is 72.605 m³, the annual current volume increment is as 8.53 m³/ha, the main stand’s annual average increment is as 3.63 m³/ha, and the overall yield is determined as 4.94 m³/ha. The yield table prepared for non-intervened Hungarian oak stands in the I. age class is considered important in terms of contributing to the success of the conversion of oak coppice forests to high forest efforts and guiding the future.

Anahtar Kelimeler: