U Turskoj se faze koranja drveta obično obavljaju uz pomoć sjekira. Međutim, ta metoda zahtijeva puno vremena i puno radne snage. Uz to, budući da ostavljanje drveta s korom u sastojinama povećava rizik od oštećenja insektima, zahtijeva hitan proces guljenja kore. Posljednjih godina puno se koriste guljači kore koji se montiraju na motornu pilu, budući da se posao obavlja brže s manjim brojem radne snage. U ovoj studiji, analizirane su dvije različite metode koranja u razmatranju produktivnosti rada koje uključuju uporabu sjekira i guljač kore koji se montira na motornu pilu. Terenske studije provedene su u sastojini brucijskog bora (Pinus brutia Ten.) koja se nalazi u Upravi šuma Bahçe u regionalnom šumskom gospodarstvu Adane. Rezultat studije bio je da je produktivnost pila za koranje bila pet puta veća od uporabe sjekira za koranje. Tako je guljač kore koji se montira na motornu pilu bolja alternativa od uporabe sjekire u guljenju kore, budući da je kod njega potrebno manje vremena te smanjuje fizički rad drvosječa.

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Harvest from plantations can provide both industrial wood and forest residues for bioenergy, including stumps. The literature suggests that the choice of cutting system can affect the division between industrial wood recovery and remaining stump volume. In this study, two felling techniques - motor-manual chainsaw and feller-buncher, were compared based on stump-height-related timber value loss for four ground slope classes: high, medium, low, and flat. The economic value loss of wood material for three products - sawlogs, pulpwood, and fiber-chip wood, was determined based on the estimated volume of stumps left in the woods. The results indicated that the average stump height for the motor-manual chainsaw and feller-buncher was 17.16 cm and 8.69 cm. The economic value loss of wood material per stump was higher in felling by manual chainsaw as compared to the feller-buncher operation (log: €0.60­, paper wood: €0.29­, fiber-chip: €0.15­). However, volume loss due to high stumps could contribute to wood for bioenergy if stumps are subsequently removed. Additional research is needed to evaluate the benefits and costs of stump removal for bioenergy as part of a total supply chain to provide both industrial wood and wood for bioenergy.

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