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Poškodbe tal pri strojni sečnji in spravilu lesa na objektu Mozeljski Šahen : diplomsko delo = Assessing soil disturbance using CTL technologies a case study in compartment Mozeljski Šahen : B. Sc. Thesis (Academic Studz Programmes)Južnič, DamjanAvgusta 2011 so bile v Mozeljskem Šahnu na Kočevskem opravljene meritve poškodb tal pri strojni sečnji. Cilj je bil ugotoviti ključne dejavnike, ki največ vplivajo na velikost poškodb, poleg tega pa ... tudi odgovoriti na vprašanje, kako jih zmanjšati. Na raziskovalnem objektu je bilo predhodno postavljenih 31 prečnih profilov. Na vsakem profilu so bile poškodbe tal ugotovljene na osnovi globine kolesnic. Ob tem je bila določena tudi smer spravila, izmerjena je bila vlažnost in nosilnost tal ter širina in globina kolesnic - najprej po sečnji s strojem in nato še po spravilu z zgibnim polprikoličarjem. Površina objekta raziskave je znašala 3,98 ha, skupna dolžina sečnih poti pa 2256 m. Na objektu je bila povprečna širina sečne poti po spravilu lesa 390,63 cm. V primerjavi s širino sečne poti po sečnji je bila v povprečju širša za 14,5 cm. S statistično analizo je bilo potrjeno, da z zgibnim polprikoličarjem nastanejo širše poti in s tem večje poškodbe na tleh. Vzrok za večjo širino sečnih poti po spravilu je večje število prehodov.Po spravilu lesa je znašala povprečna globina kolesnic 9,1 cm. Na objektu je bilo 13,3 % naraslih, 50 % kolesnic je bilo globokih do 10 cm in 36,7 % kolesnic je bilo globljih od 10 cm. Le dve kolesnici sta bili globlji od 20 cm in na objektu ni bilo prisotnih nedovoljenih kolesnic (nad 30 cm). Ugotovljeno je bilo, da sta stroja primerna za redčenje drogovnjakov. Spravilo lesa povzroča večje globine kolesnic kot sečnja, saj imajo stroji pri spravilu maso tudi okoli 30 t. Z večanjem števila prehodov pa se povečujejo tudi globine kolesnic. Delež motene površine po spravilu je znašal 22 %, po sečnji pa je bil ta delež za 1 % nižji. Gostota sečnih poti na objektu je znašala 566,8 m/ha. Ugotovljen je bil ugoden vpliv sečnih ostankov na zmanjšanje poškodb tal.Type of material - undergraduate thesis ; adult, seriousPublication and manufacture - Ljubljana : [D. Južnič], 2012Language - slovenianCOBISS.SI-ID - 3478438
Author
Južnič, Damjan
Other authors
Marenče, Jurij |
Košir, Boštjan, 1948-
Topics
poškodbe tal |
strojna sečnja |
sečni ostanki
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Library/institution |
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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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Južnič, Damjan | ![]() |
Marenče, Jurij | 11954 |
Košir, Boštjan, 1948- | 08157 |
Source: Personal bibliographies
and: SICRIS
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