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Umerjanje rezistografskih meritev gostote lesa na stoječih drevesih : pretvorba v osnovno gostoto = Calibration of resistograph measurements of wood density in standing trees : conversion into basic densityKrajnc, Luka, gozdar ...V prispevku predstavljamo proces in rezultate določitve korekcijskih količnikov za pretvorbo rezistografskih gostot, izmerjenih na stoječih drevesih, v osnovno gostoto lesa na primeru bukve (Fagus ... sylvatica L.), puhastega hrasta (Quercus pubescens Willd.) in črnega bora (Pinus nigraArnold.). Korekcijski količniki so bili določeni na podlagi sveže odžaganih kolutov, ki so bili povrtani z rezistografom. Kolute smo stehtali, izmerili njihovo prostornino ter jih posušili do absolutno suhega stanja. Iz zbranih podatkov smo nato izračunali osnovno gostoto lesa ter korekcijske količnike med osnovno in rezistografsko gostoto. V raziskavo je bilo zajetih 59 kolutov. Aritmetična sredina vseh izmerjenih količnikov znaša 1,41, vrednosti 95 % intervala zaupanja pa znašajo od 1,38 do 1,46. Razlike med drevesnimi vrstami so statistično neznačilne. Rezistografska gostota relativno dobro odraža osnovno gostoto kolutov (Pearsonov korelacijski koeficient = 0,91; p < 0,001), kar nakazuje na relativno dobro povezanost osnovnih gostot kolutov z rezistografskimi gostotami. Dobljeni rezultati so ključnega pomena za nadaljnji razvoj področja merjenja dejanskih gostot lesa v stoječih drevesih na hiter in relativno nedestruktiven način.Source: Gozdarski vestnik = Slowenische Forstzeitung = Slovenian journal of forestry : slovenska strokovna revija za gozdarstvo. - ISSN 0017-2723 (Letn. 78, št. 10, 2020, str. 404-410)Type of material - article, component partPublish date - 2020Language - slovenianCOBISS.SI-ID - 41613315
Author
Krajnc, Luka, gozdar |
Hafner, Polona, 1981- |
Gričar, Jožica, 1978- |
Simončič, Primož, 1961-
Topics
rezistograf |
gostota lesa |
kakovost lesa |
bukev |
puhasti hrast |
črni bor |
resistograph |
wood density |
wood quality |
beech |
pubescent oak |
black pine
source: Gozdarski vestnik = Slowenische Forstzeitung = Slovenian journal of forestry : slovenska strokovna revija za gozdarstvo. - ISSN 0017-2723 (Letn. 78, št. 10, 2020, str. 404-410)
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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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Krajnc, Luka, gozdar | 53233 |
Hafner, Polona, 1981- | 29633 |
Gričar, Jožica, 1978- | 22609 |
Simončič, Primož, 1961- | 10264 |
Source: Personal bibliographies
and: SICRIS
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