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Title:Odpornost lesa izbranih lesnih vrst na prostem
Authors:ID Humar, Miha (Author)
ID Lesar, Boštjan (Author)
ID Kržišnik, Davor (Author)
Files:.pdf PDF - Presentation file, download (270,74 KB)
MD5: 10A2A2FAEA357E16B57D3D964800DF1C
 
Language:Slovenian
Typology:1.01 - Original Scientific Article
Organization:Logo ZGDS - Zveza gozdarskih društev Slovenije
Abstract:Velika večina drevesnih vrst iz slovenskih gozdov nima odpornega lesa, zato na prostem (pre)hitro propade. Kadar les uporabljamo v gospodarske namene, želimo te procese čim bolj upočasniti. V okviru raziskave smo v ta namen les izbranih domačih drevesnih vrst (navadne smreke (Picea abies), les smrekovih lubadark, bele jelke (Abies alba), beljave in jedrovine rdečega bora (Pinus sylvestris), jedrovine evropskega macesna (Larix decidua), navadne bukve (Fagus sylvatica), belega gabra (Carpinus betulus) in jedrovine robinije (Robinia pseudoaccacia)) impregnirali z baker-etanolaminskim biocidnim proizvodom oziroma jih termično modificirali. Vzorce smo leta 2007 izpostavili na terensko polje Oddelka za lesarstvo v Ljubljani, kjer smo vsako leto ocenjevali razkrojenost. Najhitreje so propadli vzorci gabra in bukve. Prvi razkroj na smrekovini se je pojavil po dveh letih. Les lubadark je začel trohneti leto pred referenčno smrekovino, macesnovina in jedrovina bora pa leto kasneje. Najbolje se je izkazal les robinije. Z impregnacijo smo uspešno zaščitili les iglavcev, pri bukovini in gabrovini smo bili manj uspešni. Termična modifikacija se je izkazala za uspešen postopek zaščite za vse preizkušane lesne vrste.
Keywords:les, naravna odpornost, razkroj, modifikacija lesa, impregnacija lesa
Publication status:Published
Publication version:Version of Record
Year of publishing:2023
Number of pages:str. 219-227
Numbering:Letn. 81, št. 6/7
PID:20.500.12556/DiRROS-17512 New window
UDC:630*81
ISSN on article:0017-2723
COBISS.SI-ID:177022467 New window
Publication date in DiRROS:12.12.2023
Views:275
Downloads:70
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Record is a part of a journal

Title:Gozdarski vestnik : slovenska strokovna revija za gozdarstvo
Shortened title:Gozd. vestn.
Publisher:Zveza gozdarskih društev Slovenije
ISSN:0017-2723
COBISS.SI-ID:3736834 New window

Document is financed by a project

Funder:ARIS - Slovenian Research and Innovation Agency
Project number:P4-0015-2020
Name:Les in lignocelulozni kompoziti

Funder:ARIS - Slovenian Research and Innovation Agency
Project number:V4-2017-2020
Name:Izboljšanje konkurenčnosti slovenske gozdno-lesne verige v kontekstu podnebnih sprememb in prehoda v nizko-ogljično družbo

Secondary language

Language:English
Title:Odpornost lesa izbranih lesnih vrst na prostem
Abstract:The vast majority of wood from Slovenian forests is not durable, so it decays (too) quickly if used in outdoor applications. When we use wood for commercial purposes, we want to slow degradation processes down as much as possible. In the respective study, wood from selected native species (Picea abies, spruce bark beetle damaged wood, Abies alba, Pinus sylvestris, European larch, Larix decidua, Fagus sylvatica, Carpinus betulus and Robinia pseudoaccacia) was impregnated with a copper-ethanolamine biocide product or thermally modified. The samples were then exposed to the field test site of the Department of Wood Science and Technology in Ljubljana, where decomposition was assessed annually. The samples of hornbeam and beech decayed the fastest. The exposed hornbeam and beech wood started to decay a year before the reference spruce wood, and the decay at larch and pine heartwood was determined a year later. The first decomposition on the spruce appeared after two years. The best-performing wood was black locust. The impregnation successfully protected softwood species but was less successful for beech and hornbeam wood. Thermal modification proved to be a successful protection process for all species tested.
Keywords:wood, natural durability, decay, wood modification, impregnation of wood


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  1. Gozdarski vestnik

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