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Les jelke (Abies alba) kot material in tkivo dreves = Silver fir Abies alba Mill. wood as raw material and tree tissueČufar, Katarina ; Zupančič, Martin, 1962-Predstavljen je pregled zgradbe, lastnosti in rabe lesa jelke (Abies alba Mill.), ki ima neobarvano jedrovino, srednjo gostoto, relativno dobre mehanske lastnosti in je uporaben za številne namene. ... Vrednost in uporabnost lesa zmanjšujejo predvsem slaba odpornost proti različnim škodljivcem ter pojav mokrega srca in kolesivosti. Lastnosti lesa in uporaba lesa jelke so podobne kot pri smreki (Picea abies Karst.). Jelovina ima prednost predvsem tam, kjer smola ni zaželena, kjer je zaželena odpornost na kisline in baze, ter za vodne konstrukcije. Na primeru dendrokronološko datiranega lesa iz arheoloških in zgodovinskih objektov v Sloveniji smo ugotovili, da so jelovino v preteklosti uporabljali pogosteje kot smrekovino. Dokaz za to so številne do 500 let stare konstrukcije in ostrešja zgodovinskih stavb. Na celičnem nivoju je les jelke sestavljen predvsem iz traheid in parenhimskih celic trakov. V zadnjih letih so bile v Sloveniji opravljene podrobnejše raziskave nastajanja lesa pri jelki, ki so pomembne za fiziologijo drevja in razumevanje lastnosti lesa kot materiala. Opravljenih je bilo tudi več raziskav sekundarnega floema, ki je ključnega pomena za preživetje dreves. Podajamo pregled in glavne ugotovitve teh raziskav.Source: Zbornik gozdarstva in lesarstva = Research reports : forest and wood science & technology. - ISSN 0351-3114 (Št. 89, 2009, str. 55-66)Type of material - article, component part ; adult, seriousPublish date - 2009Language - slovenianCOBISS.SI-ID - 2520230
Author
Čufar, Katarina |
Zupančič, Martin, 1962-
Topics
jelka |
Abies alba |
les |
struktura |
lastnosti |
smreka |
Picea abies |
dendrokronologija |
nastanek
source: Zbornik gozdarstva in lesarstva = Research reports : forest and wood science & technology. - ISSN 0351-3114 (Št. 89, 2009, str. 55-66)
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Database name | Field | Year |
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Čufar, Katarina | 02937 |
Zupančič, Martin, 1962- | 10118 |
Source: Personal bibliographies
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