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Gospodarnost in okoljski vidiki tehnologij pridobivanja lesnih sekancev za energetsko rabo : doktorska disertacija = Economy and environmental aspects of forest harvesting for energy biomass : doctoral dissertationMihelič, MatevžPodročje proizvodnje biomase je obširno in zapleteno. Zato smo izbrali pristop usmerjen h kupcu, ki ga nato uporabljamo skozi vso proizvodno verigo - od gozda do kupca. V nasprotju z uveljavljenimi ... tehnologijami okroglega lesa je proizvodnja lesne biomase bolj zapletena. Razlog je predvsem v dejstvu, da je cena sekancev odvisna od več dejavnikov. Primerjali smo različne tehnologije pridobivanja biomase, predvsem smo se posvetili izvajanju del v zgodnjih redčenjih. Vhodni podatki v modelu temeljijo na več poskusnih objektih, na katerih smo raziskovali predvsem tehnologije strojne sečnje in spravila lesa z zgibnim polprikoličarjem. Z uporabo modelnega pristopa smo prikazali gospodarnost posameznih tehnologij. Ugotovili smo, da je zaslužek zaizvajalca pri tehnologijah pridobivanja biomase majhen, kljub temu, da smo predvideli uporabo sodobnih tehnologij. Velik problem za razvoj tehnologij pridobivanja biomase predstavlja odsotnost trga za zelene sekance v Sloveniji.V raziskavi smo ugotavljali tudi poškodbe sestoja in tal na vseh objektih v raziskavi. Razvili in prilagodili smo dve metodi. S prvo metodo smo ugotavljali poškodbe sestoja s prilagojeno metodo krožnih ploskev. Z drugo metodo smo ugotavljali globino kolesnic na profilih ob sečnih poteh in vlakah. Pokazali smo, da so poškodbe sestoja z uporabo strojne sečnje in spravila lesa manjše kot pri klasičnih tehnologijah dela z motorno žago in traktorjem. Poškodbe tal so bile majhne in ne bi smele povzročati nepopravljivih sprememb v gozdnih tleh. Z modelom celostnega vrednotenja vplivov tehnologij smo ocenjevali tehnologije glede na kriterije ekološkega in ekonomskega vrednotenja tehnologij. Z uporabo te metode smo skušali dobiti celosten pogled na uporabo različnih tehnologij.Type of material - dissertation ; adult, seriousPublication and manufacture - Ljubljana : [M. Mihelič], 2014Language - slovenianCOBISS.SI-ID - 796279
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Repository of the University of Ljubljana – RUL
Digitalna knjižnica Slovenije - dLib.siDostop z namenskih računalnikov v prostorih NUK
Author
Mihelič, Matevž
Other authors
Košir, Boštjan, 1948-
Topics
Lesna biomasa |
Pridobivanje |
Disertacije |
Lesni sekanci |
Tehnologija |
Disertacije |
biomasa |
ekonomičnost |
okoljski vidik |
modeliranje
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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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Mihelič, Matevž | 29335 |
Košir, Boštjan, 1948- | 08157 |
Source: Personal bibliographies
and: SICRIS
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