Journal of Apitherapy and Nature

Yazarlar: Saliha ÜNVER OKAN

Konular:Orman Mühendisliği

Anahtar Kelimeler:Ground Based Skidding,Damage to Saplings,Residual Stand,Thinning Operations

Özet: Wood harvesting are one of the main activities that directly affect many elements of ecological forest ecosystem. Especially in terms of silvicultural, thinning and selection cutting can cause significant damage to the saplings that are both to the sustainability of the forest and the wood products of the future. In this study, damage types and grades of uncontrolled ground-based skidding to the saplings were determined. The study was carried out in harvesting units applied thinning with an average slope of 65% and main tree species oriental spruce [Picea orientalis L. (Link)] and eastern beech [Fagus orientalis Lipsky.]. In the scope of the study, saplings who were smaller than 10 cm in diameter around the skidding routes were examined in the harvesting units during the summer season. Diameters of the damaged seedlings were measured and the damage types they saw were determined as crushing, lean, top breaking, uprooting and side-lying. It was determined some damages to saplings as lean (25%), uprooting (21%), crushed (20%), side lying (19%) and top breaking (15%) during the skidding activities. As a result of the study, it was determined that thin-diameter seedlings are more likely to suffer side-lying damage while thick-diameter seedlings are exposed to lean and uprooting damage. Controlled skidding on a fixed or artificial route using simple machine power can be effective in reducing the damage to saplings in harvesting units with high sapling density.

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