BF, Forestry Library, Ljubljana (GIS)
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Določanje velikosti in oblike krošnje s pomočjo krošnjemera : diplomsko delo - visokošolski strokovni študij = Determination of crown size and sgape using crown window : graduation thesis - higher professional studiesČarman, Rok ; Smrekar, Andrej, gozdarV nalogi smo preizkusili dve metodi za izračun volumna in površine krošenj pribukvi in smreki. Prva metoda temelji na pripomočku, imenovanem krošnjemer, s pomočjo katerega smo volumne in površine ... krošenj izračunali po sekcijah, druga pa na izračunu volumnov in površin krošenj na osnovi geometrijskih teles. V vzorec smo zajeli 60 dreves bukve in 40 dreves smreke. Izračune volumna in površine na osnovi geometrijskih telesih smo primerjali z izračuni pridobljenimi po sekcijah drevesa. Ugotovili smo velika odstopanja v izračunih, predvsem pri bukvi v sončni krošnji, katerega krošnja ponazarja kubični paraboloid. Pri smreki se izračuni bolje ujemajo. Pri obliki krošnje smo uporabili kazalce njene oblike, za katere smo predpostavili, da se z debelino dreves spreminjajo. To se je pokazalo pri večini kazalcev, pri vseh pa ne. Pri ugotavljanju odvisnosti med debelinskim prirastkom in parametri krošnje smo ugotovili, da pri bukvi senčna krošnja pomembneje vpliva na debelinski prirastek, kot pa sončna krošnja, pri smreki pa je ravno nasprotno.V nalogi smo primerjali tudi dejanske višine dreves z višinami, izmerjenimi s krošnjemerom in višinomerom Sunnto ter ugotovili, da se napaka znaraščanjem višine dreves povečuje, odvisna pa je tudi od mikroreliefa.Type of material - undergraduate thesis ; adult, seriousPublication and manufacture - Ljubljana : [R. Čarman, A. Smrekar], 2007Language - slovenianCOBISS.SI-ID - 1892774
Author
Čarman, Rok |
Smrekar, Andrej, gozdar
Other authors
Kotar, Marijan |
Kadunc, Aleš
Topics
krošnjemer |
volumen krošnje |
površina krošnje |
bukev |
Fagus sylvatica |
smreka |
Picea abies |
oblika krošnje
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Gozdarska knjižnica enota BFGO |
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BFGO Knjižnica VDN 0000000390 IN: 22007000113 BFGO Knjižnica VDN 390 IN: 22007000113 |
available - outside loan, loan period: 1 days
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DRS, in which the journal is indexed
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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Čarman, Rok | ![]() |
Smrekar, Andrej, gozdar | ![]() |
Kotar, Marijan | 05845 |
Kadunc, Aleš | 20035 |
Source: Personal bibliographies
and: SICRIS
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