The effects of thinning on diameter and height growth of pure oriental beech (Fagus orientalis Lipsky.) forests in Adapazari-Karasu region

In this study, carried out pure oriental beech (Fagus orientalis Lipsky.) forests in Adapazarı-Karasu region, the effects of thinning applications on diameter and height growth of oriental beech individuals were investigated. According to the ANOVA and Duncan Range Test results, moderate (13.41m) and mighty (13.76m) thinning applications have been affected on height growth and the mighty and mighty thinning applications have been affected on diameter growth (18.45cm) of oriental beech individuals in forest stands at the end of ten years. Furthermore moderate and mighty thinning applications have been affected on volume, volume increment, individual amounts, stem straightness and stand spatial relationships (k(f)=1.48) positive respects. The thinning applications have been positive effects on growth and stability of pure oriental beech forests stands. In this reason, moderaty and sometimes mighty thinning applications should be quite positive effects on natural and pure oriental beech forest stands in the research area and have to similar ecological conditions other oriental beech stands.