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Ağaçlarda Büyüme Gerilmeleri: Yapısı, Oluşum Nedenleri ve Belirtileri

Growth Stresses in Trees: The Nature, Formation and Manifestations of Growth Stresses

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Abstract (2. Language): 
Growth stresses are characteristic of normal growing trees and occur in both hardwoods and softwoods. Growth stresses are not visible and can not bt measured directly. However, they are estimated by strain measurements in woodGrowth stresses release when trees are felled, cut into logs and processed into lumber. As a result, splits, cracks and warps occurs in wood materials. Growth strains cause losses in the economic value of wood and create negative effects on wood usage. This paper reviews the nature, formation and manifestation of growth stresses.
Abstract (Original Language): 
Büyüme gerilmeleri odunsu dokuların normal gelişmeleri sonucunda ortaya çıkmakta olup, hem iğne yapraklı hem de geniş yapraklı ağaçlarda görülmektedir. Gerilmeler gözle görülememekte ancak, sebep oldukları deformasyonların ölçülmesi ile büyüklükleri tahmin edilebilmektedir. Ağaçların kesilmesi, tomruklara ayrılması ve kereste üretimi sırasında büyüme gerilmeleri ortadan kalkmakta, odunda çatlaklar, yarılmalar, şekil değişmeleri gibi deformasyonlara neden olmaktadırlar. Oluşan deformasyonlar hammadde odunda önemli ekonomik kayıplar meydana getirmekte ve kullanım yeri üzerinde olumsuz etkiler yaratmaktadır. Bu makalede büyüme gerilmeleri, oluşum nedenleri ve belirtileri incelenmektedir.
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