Effect of spacing on some mechanical properties of narrow leaved ash (Fraxinus angustifolia) wood

Cengiz Guler,Serdar Aliogullari,Halil Ibrahim Sahin

doi:10.4067/s0718-221x2015005000067

Abstract

In this study, conducted to test the effect of spacing on wood quality; the effect of four different spacing types, applied in Adapazari Suleymaniye plantation (Region 1; 3x2 m; Region 2; 3x2,5 m; Region 3; 3,75x3,75 m; Region 4; 4x4 m), on some mechanical properties of narrow leaved ash (Fraxinus angustifolia) have been studied. In the present study, some mechanical properties such as the compression strength parallel to grain, tensile stress perpendicular to grain, bending strength, impact bending strength and modulus of elasticity were determined. As a result, the ash wood, grown in region 4 with a wide range of planting, has high mechanical properties. However, when analyzed in terms of wood quality characteristics, it has been found that spacing in region 1 (2x3 m) is more suitable for applications of ash plantations.

Highlights

Geographical spread of ash begins from South East Europe, and reaches to Turkey, Iran and Turkestan
Air-Dry Density Air-dry density values were calculated on 374 samples from four experiment sites
We determined the effects of spacing on some mechanical properties of narrow-leaved ash (Fraxinus angustifolia) wood in accordance with the purposes

Summary

Introduction

Geographical spread of ash begins from South East Europe, and reaches to Turkey, Iran and Turkestan This species is more common in different forest regions in our country. Süleymaniye Forest at the stuffed areas at the mouth of Sakarya River near Adapazarı and Çilinkoz Forest near Demirköy are the most beautiful forests of this type. They have been formed from the 1940s to the present day as a plantation forest (Sahin 2013). Spacing is a determinative and important issue for the quality of the forest to be grown It determines the cost of plant and which industry the tree material is used in. As young wood is of low density, it will cause a decrease in density depending on its presence in the material (Haygreen and Bowyer 1996)

Methods

Results

Conclusion