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Nosilnost zmrznjenih tal in snežne odeje pri gozdni proizvodnji
Jereb, Jure (Author), Poje, Anton (Mentor) More about this mentor... This link opens in a new window

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Abstract
Namen te diplomske naloge je bil ugotoviti kako zmrznjena in zasnežena tla vplivata na poškodbe tal pri gozdni proizvodnji. Zanimala nas je minimalna potrebna globina zmrznjenih tal ter debelina snežne odeje, pri kateri so poškodbe tal najmanjše. Prav tako je bil naš namen ugotoviti, kako globina zmrznjenih tal in debelina snežne odeje niha med leti. Rezultate smo razdelili po gozdno gospodarskih območjih (GGO). Za delo smo uporabili dve metodi. Prva metoda je bila anketa zaposlenih v Zavodu za gozdove Slovenije, podjetju Slovenski državni gozdovi in ostalih izvajalskih podjetjih. Druga metoda je bila analiza podatkov iz meteoroloških postaj. Zanimala nas je debelina snežne odeje in temperatura tal na globini 5 cm, 10 cm in 30 cm. Rezultati ankete so pokazali, da je za delo na zasneženih gozdnih tleh potrebnih vsaj 29 cm snega. Anketiranci prav tako ocenjujejo, da za delo na zmrznjenih tleh potrebujemo vsaj 17 cm globoko zmrznjena tla. Rezultati druge metode so pokazali, da je največ snežnih padavin v Julijskih Alpah in Dinarskem gorovju. Najvišje povprečno število dni s snežno odejo nad 29 cm imata GGO Bled in GGO Kočevje. Povprečna debelina snežne odeje za celotno Slovenijo v zadnjih 5 letih niha med 28,5 cm in 10,7 cm. Največ dni primernih za delo na zmrznjenih tleh je od konca novembra do marca.

Language:Slovenian
Keywords:snežna odeja, zmrznjena tla, poškodbe tal, gozdna proizvodnja, strojna proizvodnja
Work type:Bachelor thesis/paper (mb11)
Tipology:2.11 - Undergraduate Thesis
Organization:BF - Biotechnical Faculty
Year:2020
Publisher:[J. Jereb]
UDC:630*114:630.42(043.2)=163.6
COBISS.SI-ID:5615782 Link is opened in a new window
Views:155
Downloads:75
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Secondary language

Language:English
Title:Bearing capacity of frozen soil and snow at timber production
Abstract:
Purpose of this thesis was to find out how frozen ground and ground, covered with snow, effect on ground damage. We were most interested in minimal depth of frozen ground or depth of snow cover, at which ground damage is minimal. Our purpose was also to find out how depth of frozen ground and snow cover changes through years. Results were divided to regional units. We used two methods, the first was questionnaire for professional workers in Slovenian forest service, Slovenian state forests and other wood production contractor firms. Second method was analysis of data from meteorological stations. We were interested in snow depth and temperature of ground on depth of 5 cm, 10 cm and 30 cm. Results of questionnaire showed that snow depth of 29 cm is required for wood production with minimal ground damage. When soil is frozen, at least 17 cm of frost is required to prevent ground damage. Results of the second method showed us that the most snow precipitation falls in Julian Alps and Dinaric Alps. Bled and Kočevje regional units have the highest mean number of days with snow cover above 29 cm. Average snow depth in Slovenia in last 5 years has changed from 28,5 cm to 10,7 cm. The most days, suitable for work on frozen ground last from the end of November to March.

Keywords:snow cover, frozen ground, ground damage, wood production, mechanized wood production

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