2120 KB37 KB201320252025Krajnc, LukaZafran, Janezštevilka:137str. 39-48DOI:10.20315/ASetL.137.4ISSN:2335-3112COBISSID_HOST:261816835URN:URN:NBN:SI:doc-HY0XFYRBslBiotehniška fakulteta, Oddelek za gozdarstvo in obnovljive gozdne vireBiotehniška fakulteta, Oddelek za lesarstvoGozdarski inštitut Slovenije, založba Silva SlovenicaActa silvae et ligniassortmentconifersforest timber assortmentsgozdni lesni sortimentigrčehardwoodsiglavciinternal wood defectsknotslistavcinotranje napake lesaocena kakovostiprostorninska strukturaquality assessmentračunsko krojenjesortimentacijastanding treesstoječa drevesavirtual buckingvolume structurePrevedba ocen kakovosti stoječih dreves na izbranih objektih v sortimentno strukturo| Converting stem quality assessments of standing trees into log grade structure|A method for converting stem quality assessments into log grade structure was presented. For 123 trees of four species, a comparison was made between actual assortments after felling and virtual assortments based on pre-harvest quality estimates. A total of 869 actual assortments were measured, and the results were compared with virtual bucking and sorting into log grades. The results showed good agreement for spruce, while the accuracy for hardwoods was lower due to undetectable internal defects. The method proved useful for improving harvest planning and assessing forest stand quality. Further refinement of existing models (e.g., knot size) would increase the the accuracy and applicability of the approach under Slovenian conditionsV raziskavi je bila predstavljena in preračunana ocena kakovosti stoječih dreves v sortimentno strukturo. Na 123 drevesih štirih drevesnih vrst je bila opravljena primerjava med dejansko sortimentacijo po poseku in računsko sortimentacijo na osnovi predhodno ocenjene kakovosti. Izmerili smo 869 gozdno-lesnih sortimentov ter primerjali rezultate računske in dejanske sortimentacije. Rezultati so pokazali dobro ujemanje pri smreki, nekoliko manj pa pri listavcih, kjer je bil večji vpliv notranjih napak na sortimentno sestavo. Metoda je praktično uporabna in daje uporabne rezultate za napoved sortimentne sestave. Izboljšati je treba še modele napovedi velikosti grč, s čimer bi natančnost napovedi še dodatno povečaliTEXTznanstveno časopisjejournalsSlovenian National E-content AggregatorNational and University Library of SloveniaGozdarski inštitut Slovenije