diplomsko delo - visokošolski strokovni študij
Jana Jakič (Author), Željko Gorišek (Reviewer), Aleš Straže (Mentor)

Abstract

Proučili smo vlažnost in gostoto lesa ter zunanje morfološke spremembe na različno prizadetih drevesih navadne bukve (Fagus sylvatica L.) ob koncu prve vegetacijske dobe po velikem žledolomu v Sloveniji v letu 2014. Potrdili smo povezanost med deležem še aktivnega koreninskega sistema in stopnjo porjavelosti (izsušenosti) krošnje dreves ter porazdelitvijo vlažnosti lesa v deblih dreves. Pri najbolj prizadetih drevesih smo v prevodnem zunanjem delu beljave potrdili padec vlažnosti lesa pod mejo naravne biološke odpornosti (u < 60 %). Po prvi vegetacijski dobi, nismo potrdili splošnega padca gostote lesa (in z njim povezanega poslabšanja mehanskih lastnosti), ki bi bil posledica okužbe in razkroja lesa z glivami

Keywords

bukev;žledolom;fizikalne lastnosti lesa;vlažnost lesa;gostota lesa;

Data

Language: Slovenian
Year of publishing:
Typology: 2.11 - Undergraduate Thesis
Organization: UL BF - Biotechnical Faculty
Publisher: [J. Jakič]
UDC: 630*423.3:630*812
COBISS: 2477449 Link will open in a new window
Views: 394
Downloads: 80
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Other data

Secondary language: English
Secondary title: Physical properties of beech wood after sleet damage
Secondary abstract: Moisture content and wood density of variously damaged uprooted European beech (Fagus sylvatica L.) trees were studied at the end of the first vegetation period after ice storm damage in Slovenian forests in 2014. The study confirmed significant correlation between the amount of active root system and necrosis of leaves and changed moisture content and its distribution in the trunks. The moisture content of wood below 60 % was confirmed in sapwood of extremely damaged trees, indicating diminished protection against wood destroying organisms. We could not confirm any reduction of wood density which would indicate deterioration of wood at the end of the first vegetation period after ice storm damage
Secondary keywords: beech;ice storm;physical properties of wood;moisture content;wood density;
Type (COBISS): Undergraduate thesis
Thesis comment: Univ. v Ljubljani, Biotehniška fak., Oddelek za lesarstvo
Pages: IX, 39 f.
ID: 11920731
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