Primerjava stroškov in učinkov dveh tehnologij pridobivanja lesa v listnatih sestojih : diplomsko delo - univerzitetni študij

Vranešič, Uroš (author), Krč, Janez (mentor)

Meritve za diplomsko delo so potekale septembra in oktobra 2005 v gozdnogospodarski enoti Mirna gora. Namen naloge je bil primerjati učinke in stroške dveh tehnologij pridobivanja lesa v listnatih sestojih. V diplomskem delu so prikazane tudi študije časov. Oddelek so razdelili na štiri stratume, dva za strojno ter dva za klasično sečnjo. Drevju označenemu za posek, so za potrebe nadaljnje študije izmerili prsni premer, ocenili globino krošnje, debelino vej ter obliko debla. Ugotovitve kažejo, da je učinkovitost odvisna od morfoloških lastnosti. Sečnja dreves s strojem za sečnjo je učinkovitejša pri enoosnih drevesih, s kratko krošnjo ter tankimi vejami kot pa v sestojih sprevladujočimi drevesi z globoko krošnjo, večosnim deblom ter debelimi vejamiv krošnji. Povprečni učinek na delovno uro pri strojni sečnji znaša 6,78m3, strošek sečnje pa 15,23 EUR/m3. Povprečni učinek na produktivno uro pa znaša 9,42 m3. Pri klasičnem načinu sečnje pa je povprečni učinek 1,76 m3 na delovno uro, stroški sečnje pa znašajo povprečno 10,08 EUR. Cena spravila lesa z gozdarskim traktorjem na delovno uro znaša v povprečju 11,57 EUR/m3. Povprečnistroški izvoza lesa z zgibnim polprikoličarjem znašajo 6,44 EUR/m3 na delovno uro oziroma 5,01 EUR/m3 na produktivno uro.

• Language: Slovenian
• Keywords: strojna sečnja, listavci, učinki, stroški, primerjava
• Work type: Undergraduate thesis
• Typology: 2.11 - Undergraduate Thesis
• Organization: BF - Biotechnical Faculty
• Place of publishing: Ljubljana
• Publisher: [U. Vranešič]
• Year: 2008
• Number of pages: VIII, 81 str.
• PID: 20.500.12556/RUL-15608
• UDC: 630*301+603*307+630*22:630*17(043.2)=163.6
• COBISS.SI-ID: 2222502
• Publication date in RUL: 11.07.2014

VRANEŠIČ, Uroš, 2008, Primerjava stroškov in učinkov dveh tehnologij pridobivanja lesa v listnatih sestojih : diplomsko delo - univerzitetni študij [online]. Bachelor’s thesis. Ljubljana : U. Vranešič. [Accessed 25 April 2025]. Retrieved from: https://repozitorij.uni-lj.si/IzpisGradiva.php?lang=eng&id=15608

Secondary language

• Language: Unknown

Abstract

The measurements BA thesis took place in September and October 2005 in the forest management unit Mirna gora. The aim of this thesis was to compare the productivity and costs of two different technologies of wood logging in deciduous canopies. The thesis also includes time studies. The department was divided in four parts, two for machanized and two for classical tree felling. In order to carry on the reasearch, we measured the diameter at breast height of the trees marked for felling and also estimated their crown depth, branch width and tree trunk form. The findings show that the efficiency of mechanizedtree felling depends on morfological characteristics of trees. Mechanized tree felling with a harverster seems to be more efficient with one axis trees which have a short crown and thin branches rather than with trees which have a deep crown, multi axis trunk and thick branches in the crown. Theaverage effect per working hour in mechanized tree felling comes up to 6.78fm3 and costs reach 15.23 EUR/m3. The average productivity per productivehour amounts to 9.42gm3. Whereas in classical tree felling the average productivity reaches 1.7fm3 per working hour and the costs amount to 10.08 EUR. The costs of wood gathering with a forest tractor add to 11.57 EUR/m3 per working hour. The average costs of wood transport with a forwarder amount to 6.44 EUR/m3 per working hour or 5.01 EUR/m3 per productive hour.