20.500.12556/DiRROS-24757 Prevedba ocen kakovosti stoječih dreves na izbranih objektih v sortimentno strukturo Converting stem quality assessments of standing trees into log grade structure V 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 povečali. 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 conditions. sortimentacija ocena kakovosti stoječa drevesa gozdni lesni sortimenti iglavci listavci grče računsko krojenje notranje napake lesa prostorninska struktura assortment quality assessment standing trees forest timber assortments conifers hardwoods knots virtual bucking internal wood defects volume structure true false true Slovenski jezik Angleški jezik Znanstveno delo 2025-12-17 10:36:40 2025-12-17 10:36:40 2025-12-18 03:52:49 0000-00-00 00:00:00 2025 0 0 str. 39-48 Vol. 137 2025 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 2025-12-17 630*52 2335-3112 10.20315/ASetL.137.4 261816835 ASetL-137_4_2.pdf ASetL-137_4_2.pdf 1 F7EAF352ADCF2DBCB0B816ABF330FA5F 19a514c7b72f40b7239b1b44959a9e0dc9f1ccfd455fa0c045a32ae626b078cc 04b89bac-db2c-11f0-94a7-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=37000 Gozdarski inštitut Slovenije Acta Silvae et Ligni 0 0 0