BF, Forestry Library, Ljubljana (GIS)
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Spravilo lesa iz pomlajenih sestojev na območju Novomeškega Roga : diplomsko delo - visokošolski strokovni študij = Wood extraction from regenerated stands in the area of Novomeški rog : graduation thesis - higher professioanl studiesMikec, SebastjanMeritve za izdelavo diplomske naloge so potekale avgusta, septembra in oktobra leta 2009 v kraju Podturn, v gozdno gospodarski enoti Poljane. Namen naloge je bila primerjava učinkov, stroškov in ... primernosti prilagojenega kmetijskega traktorja John Deere 6220 ter zgibnega polprikoličarja (forwarderja) John Deere 1410 ECO III pri spravilu lesa iz pomlajenih sestojevna območju Roga. Narejena je bila tudi časovna študija dela. V oddelku 43 sta bila postavljena 2 stratuma s podobno površino. V stratumu B1 je potekala klasična sečnja z motorno žago in spravilo lesa s traktorjem. V stratumu A2 pa kombinacija strojne in klasične sečnje z izvozom lesa s forwarderjem. Zavod za gozdove Slovenije je pred začetkom dela opravil odkazilo dreves za posek, opravljene pa so bile tudi meritve dolžin ter naklonov vlak. Med izvajanjem klasične sečnje so bili vsi sortimenti oštevilčeni in izmerjeni njihovi volumni, v drugem stratumu pa so bili izmerjeni med spravilom lesa. Rezultati meritev so pokazali, da na učinkovitost in posledično na stroške v največji meri vplivajo morfološke lastnosti terena, koncentracija lesa na dolžini vlake ali na enem mestu (mestonakladanja), dolžina spravila ter volumen posameznega sortimenta. Učinki traktorja so 9,48 m3/obratovalno uro oziroma 7,26 m3/delovno uro, forwarderja pa 25,6 m3/obratovalno uro oziroma 22,98 m3/delovno uro. Stroški spravila lesa s traktorjem znašajo 5,75 /m3/obratovalno uro oziroma 5,63 /m3/delovno uro. Pri spravilu lesa s forwarderjem pa so stroški 4,89 /m3/obratovalno uro ali 4,09 /m3/delovno uro. Glede primernosti traktorja za spravilo lesa iz jelovo - bukovih sestojev je bilo ugotovljeno, da je traktor primeren in kljub veliki stopnji kamnitosti in skalovitosti dosega dobre učinke. Izbrani tip forwarderja pa se je izkazal kot dobro prilagojen za spravilo težkih bremen.Type of material - undergraduate thesis ; adult, seriousPublication and manufacture - Ljubljana : [S. Mikec], 2011Language - slovenianCOBISS.SI-ID - 3292070
Author
Mikec, Sebastjan
Other authors
Košir, Boštjan, 1948-
Topics
spravilo lesa |
traktorji |
gozdarska mehanizacija |
zgibni polprikoličarji |
učinki |
stroški
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Gozdarska knjižnica enota BFGO |
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Mikec, Sebastjan | ![]() |
Košir, Boštjan, 1948- | 08157 |
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