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Title:Gostota lesa - metode določanja in pomen pri razvoju gozdno lesnega biogospodarstva
Authors:ID Arnič, Domen (Author)
ID Humar, Miha (Author)
ID Kržišnik, Davor (Author)
ID Krajnc, Luka (Author)
ID Prislan, Peter (Author)
Files:.pdf PDF - Presentation file, download (2,07 MB)
MD5: BC15C909AE0EB494E12F836887255527
 
URL URL - Source URL, visit https://doi.org/10.20315/ASetL.124.1
 
Language:Slovenian
Typology:1.01 - Original Scientific Article
Organization:Logo SciVie - Slovenian Forestry Institute
Abstract:Gostota lesa je fizikalna lastnost, ki je enostavno določljiva in nakazuje na številne druge lastnosti lesa in s tem tudi na njegovo uporabnost v lesno-predelovalni industriji, gradbeništvu ali energetiki. Ker je odvisna od vlažnosti ter poroznosti, se v stroki pojavljajo različne definicije gostot lesa, med katerimi je največkrat uporabljena gostota lesa v absolutno suhem stanju. Namen prispevka je predstavitev različnih načinov določanja gostote lesa ter pomen hitrega in natančnega določanje tega parametra kakovosti pri razvoju gozdno lesnega biogospodarstva. V stroki obstaja več neposrednih in posrednih metod določanja gostote; najbolj običajen in razširjen je volumetrični pristop, sledi postopek ocenjevanja gostote s penetrometrom, rezistografom, visokofrekvenčno denzitometrijo, rentgenskimi žarki, infrardečo spektroskopijo ter mikrovalovi. Les je surovina, ki ji bo v prihodnosti pomen še naraščal, saj je ključna za razvoj trajnostnega biogospodarstva. Natančno in pravočasno določanje gostote lesa bo omogočalo ustrezno razporejanje in usmerjanje tokov te surovine med posameznimi konvencionalnimi in novimi sektorji (področji rabe) in posledično bolj učinkovito in trajnostno rabo.
Keywords:lastnosti lesa, gostota lesa, rezistograf, penetrometer, rentgenska denzitometrija, visokofrekvenčna denzitometrija, gozdno lesno biogospodarstvo
Publication status:Published
Publication version:Version of Record
Year of publishing:2021
Number of pages:str. 1-11
Numbering:Vol. 124
PID:20.500.12556/DiRROS-13797 New window
UDC:630*812(045)=163.6
ISSN on article:2335-3112
DOI:10.20315/ASetL.124.1 New window
COBISS.SI-ID:57394691 New window
Publication date in DiRROS:28.03.2021
Views:4821
Downloads:2790
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Record is a part of a journal

Title:Acta Silvae et Ligni
Publisher:Gozdarski inštitut Slovenije, založba Silva Slovenica, Biotehniška fakulteta, Oddelek za gozdarstvo in obnovljive gozdne vire, Biotehniška fakulteta, Oddelek za lesarstvo
ISSN:2335-3112
COBISS.SI-ID:266761216 New window

Document is financed by a project

Funder:ARRS - Slovenian Research Agency
Project number:P4-0107
Name:Gozdna biologija, ekologija in tehnologija
Funder:ARRS - Slovenian Research Agency
Project number:J4-2541
Name:Vpliv podnebnih sprememb na dinamiko akumulacije lesne biomase bukve in smreke v Sloveniji in ovrednotenje s tem povezanih potencialov rasti biogospodarstva
Funder:ARRS - Slovenian Research Agency
Project number:V4-2017
Name:Izboljšanje konkurenčnosti slovenske gozdno-lesne verige v kontekstu podnebnih sprememb in prehoda v nizko-ogljično družbo

Licences

License:CC BY-SA 4.0, Creative Commons Attribution-ShareAlike 4.0 International
Link:http://creativecommons.org/licenses/by-sa/4.0/
Description:This Creative Commons license is very similar to the regular Attribution license, but requires the release of all derivative works under this same license.
Licensing start date:28.03.2021

Secondary language

Language:English
Title:Wood density - determination methods and importance in the development of the forest-based bioeconomy
Abstract:Wood density is an important physical property that can be easily measured and is closely related to many other wood properties. Furthermore, wood density is a good indicator of the usability and applicability of wood in the wood processing, construction and energy industries. Because it is strongly dependent on moisture content and porosity, there are various definitions of wood density in the literature, among which the density measured on the basis of dry matter and volume is the most commonly used. The aim of this paper is to present different methods for wood density determination and the importance of collecting such data for the development of the forest-based bioeconomy. In practice, there are several direct and indirect methods of density measurement; in addition to the most basic volumetric approach, the density of wood can be measured by penetrometer, resistograph, high frequency densitometry, X-rays, near infrared spectroscopy and microwaves. Wood will continue to grow in importance, as it is one of the key raw materials for the transition to a sustainable bioeconomy. The accurate and timely determination of wood density allows for the appropriate distribution and direction of flows of this raw material between individual conventional and new sectors (areas of use) and thus its more efficient and sustainable use.
Keywords:wood properties, wood density, resistograph, penetrometer, X-ray densitometry, high frequency densitometry, forest-based bioeconomy


Collection

This document is a part of these collections:
  1. Acta Silvae et Ligni

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