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Obročkanje kot sestavina nege gozdov : diplomsko delo - univerzitetni študij = Girdling as a part of forest tending : graduation thesisDomanjko, GregorObročkanje je ukrep, pri katerem z odstranitvijo skorje, kambija in zadnjih nekaj branik lesa oslabimo konkurenčno sposobnost drevesa. Namen obročkanja je, pri zapoznelih redčenjih, ohraniti sestojno ... stabilnost. V diplomskem delu smo analizo obročkanja razdelili na dva dela. V prvem delu smo na 8-ih lokacijah, v gospodarskih enotah Gornja Radgona in Ljutomer, analizirali obstoječe objekte z obročkanimi drevesi. Na vsakem drevesu smo izmerili in določili prsni premer, povprečno višino obročkanja od tal, dolžino obročkanegadela, dolžino krošnje, osutost krošnje v %, orodje, s katerim so obročkali, in čas izvedbe. V drugem delu pa smo na 50-ih ploskvah velikosti 7x7 m izvedli časovno primerjavo med obročkanjem in podiranjem z motorno žago.Pri obročkanju smo z vejnikom preizkusili 5 metod: obročkanje na višini 0,5 m, obročkanje na 1 m, obročkanje na 1,5 m ter metodi, obročkani na višini 0,5 m in 1 m, kjer spodnji del skorje odstopa od debla. Med drevesnimi vrstamista največjo regeneracijsko sposobnost pokazali bukev in navadni beli gaber, najmanjšo pa robinija, lipovec ter trepetlika. Največji vpliv na hitrost odmiranja ima poleg drevesne vrste čas, ki poteče od obročkanja. Pri enakem prsnem premeru je klasično podiranje časovno ugodnejše do debelinske stopnje 9 cm. Nad to debelino je, z vidika stroškov, bolje obročkati. Med posameznimi metodami obročkanja smo značilno razliko glede porabe časa ugotovili med metodo, obročkano na 1 metru, in metodo, obročkano na 0,5 metra,kjer spodnji del skorje odstopa od debla. Iz naših raziskav in izkušenj priporočamo obročkanje v mladovju še naprej le točkovno v kombinaciji s klasičnim podiranjem.Type of material - undergraduate thesis ; adult, seriousPublication and manufacture - Ljubljana : [G. Domanjko], 2005Language - slovenianCOBISS.SI-ID - 1514150
Author
Domanjko, Gregor
Other authors
Diaci, Jurij
Topics
obročkanje |
racionalizacija nege gozdov |
izbiralno redčenje |
osutost krošnje |
gozdnogospodarsko območje Murska Sobota
Library/institution |
City | Acronym | For loan | Other holdings |
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Slovenian Forestry Institute, Forestry Library, Ljubljana | Ljubljana | GIS |
outside loan 1 cop.
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Domanjko, Gregor | |
Diaci, Jurij | 11253 |
Source: Personal bibliographies
and: SICRIS
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