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Durability and moisture dynamics of Douglas-fir wood from Slovenia
ID Humar, Miha (Author), ID Vek, Viljem (Author), ID Oven, Primož (Author), ID Lesar, Boštjan (Author), ID Kržišnik, Davor (Author), ID Keržič, Eli (Author), ID Hočevar, Miha (Author), ID Brus, Robert (Author)

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Abstract
Wood in outdoor applications is subject to various decomposition factors. Wood degradation can be prevented by construction details, biocide protection of wood, wood modification or selection of naturally durable species. Unfortunately, most species in Europe do not have naturally durable wood. Imported tree species represent a new pool from which we can draw wood species with better natural durability and better resilience towards climate change. The performance of wood when used outdoors depends on the biologically active compounds (extractives) and the water exclusion efficacy. Considering decay, presence of biologically active compounds and water exclusion efficacy, we can estimate the density, modulus of elasticity, extractive content and resistance dose, which reflects the material properties of wood. Recently, the most commonly used model for this purpose is Meyer-Veltrup. Literature data indicate that the durability of the wood from native and new sites is not always comparable, so it is necessary to determine the resistance of non-native wood species from new sites. This paper presents original data on the wood’s overall durability from American Douglas fir (Pseudotsuga menziesii) grown in Slovenia. Experimental data show that the mature heartwood of Douglas fir is more durable than the wood of European larch (Larix decidua). Durability can be attributed to good water exclusion efficacy and inherent durability. Inherent durability is primarily the result of the high content of extractives. Based on the results, it can be concluded that American Douglas fir grown in Central Europe has a high potential for outdoor use.

Language:English
Keywords:wood, natural durability, wood decay, water exclusion efficacy, extractives
Work type:Article
Typology:1.01 - Original Scientific Article
Organization:BF - Biotechnical Faculty
Publication status:Published
Publication version:Version of Record
Year:2022
Number of pages:15 str.
Numbering:Vol. 13, art. 860734
PID:20.500.12556/RUL-136463 This link opens in a new window
UDC:630*8
ISSN on article:1664-462X
DOI:10.3389/fpls.2022.860734 This link opens in a new window
COBISS.SI-ID:102652675 This link opens in a new window
Publication date in RUL:05.05.2022
Views:527
Downloads:101
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Record is a part of a journal

Title:Frontiers in plant science
Shortened title:Front. plant sci.
Publisher:Frontiers Research Foundation
ISSN:1664-462X
COBISS.SI-ID:3011663 This link opens in a new window

Licences

License:CC BY 4.0, Creative Commons Attribution 4.0 International
Link:http://creativecommons.org/licenses/by/4.0/
Description:This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.

Secondary language

Language:Slovenian
Keywords:les, naravna odpornost, razkroj lesa, odpornost proti navlaževanju, ekstraktivi

Projects

Funder:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Project number:P4-0015
Name:Les in lignocelulozni kompoziti

Funder:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Funding programme:Infrastructural centre
Project number:0481–09
Acronym:IC LES PST

Funder:Drugi - Drug financer ali več financerjev
Funding programme:Ministry of Agriculture, Forestry and Food

Funder:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Project number:V4-1818
Name:Uporabnost ameriške duglazije in drugih tujerodnih drevesnih vrst pri obnovi gozdov s saditvijo in setvijo v Sloveniji

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