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https://doi.org/10.5552/drvind.2019.1762

Physical Properties of Juvenile and Mature Sycamore Maple (Acer pseudoplatanus L.) Wood from Medvednica Region

Tomislav Sedlar ; Šumarski fakultet Sveučilišta u Zagrebu, Zagreb, Hrvatska
Tomislav Sinković ; Šumarski fakultet Sveučilišta u Zagrebu, Zagreb, Hrvatska
Jelena Trajković ; Šumarski fakultet Sveučilišta u Zagrebu, Zagreb, Hrvatska
Marin Hasan ; Šumarski fakultet Sveučilišta u Zagrebu, Zagreb, Hrvatska
Iva Ištok ; Šumarski fakultet Sveučilišta u Zagrebu, Zagreb, Hrvatska
Bogoslav Šefc ; Šumarski fakultet Sveučilišta u Zagrebu, Zagreb, Hrvatska


Puni tekst: engleski pdf 918 Kb

str. 19-26

preuzimanja: 678

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Sažetak

Physical properties play an important role in predicting wood quality. The aim of this study was to investigate radial variations in physical properties of sycamore maple (Acer pseudoplatanus L.) wood, to determine the border between juvenile and mature wood and to compare them with analogous variations in beech wood. Radial variation of density in absolutely dry condition, maximum density, nominal density, longitudinal, radial, tangential and volumetric shrinkage, maximum moisture content and annual ring width on five sycamore maple trees from Medvednica region in Croatia were determined. Observing the trend curves and comparing average values of physical properties, different zones in the cross section of the trunk were determined. In the first zone, from the pith to about 30th annual ring, more rapid changes in physical properties occurred. It is followed by transitional zone, which ranges roughly from 30th to 40th annual ring. After 40th annual ring, less pronounced changes in measured physical properties occurred. Sharp boundary between juvenile and mature wood zones could not be determined. According to the results, the first zone is considered to be juvenile wood, while mature wood starts after the 30th annual ring.

Ključne riječi

sycamore maple (Acer pseudoplatanus L.); physical properties; radial variations; juvenile wood; mature wood

Hrčak ID:

217524

URI

https://hrcak.srce.hr/217524

Datum izdavanja:

26.3.2019.

Podaci na drugim jezicima: hrvatski

Posjeta: 1.889 *