20.500.12556/RUL-115179 Kakovost bukve v gozdnogospodarski enoti Preserje-Rakitna diplomsko delo - univerzitetni študij Beech tree quality in forest management unit Preserje - Rakitna V gozdnogospodarski enoti Preserje-Rakitna so na stalnih vzorčnih ploskvah (n = 194) analizirali kakovost bukovega drevja (n = 661). Uporabili so dva načina ocenjevanja kakovosti bukovega drevja: 1) standardni način, kot ga uporablja Zavod za gozdove Slovenije pri gozdnih inventurah, in 2) dopolnjeni način, pri katerem smo ocenjevali sortimentno strukturo v 1. in 2. četrtini debel. Kakovost bukovih dreves je bila relativno ugodna, saj je bilo v celotni lesni zalogi bukve kar 18 % furnirja in luščenca. Z modeliranjem so potrdili raziskovalno hipotezo, da na količino najkakovostnejših sortimentov najznačilneje vpliva premer dreves. Med 15 preučevanimi drevesnimi, sestojnimi in rastiščnimi znaki so bili v pojasnjevalni model kakovosti bukve vključeni še delež bukve v temeljnici sestoja, velikost krošnje, razsohlost, sestojna temeljnica, socialni položaj in razvojna faza (debeljak). Rezultati nakazujejo, da je standardni način ocenjevanja kakovosti bukve pomanjkljiv. Odkrili so tudi pomanjkljivosti pri terenskem ocenjevanju kakovosti drevja. Predlagane so izboljšave in predlog za transformacije ocen kakovosti ZGS v volumen sortimentov v 1. in 2. četrtini bukovih dreves. In the Preserje-Rakitna forest management unit, beech tree (n=661) quality was analyzed on permanent sample plots (n=194). Two methods of tree quality evaluation were used: 1) the standard method as used by the Slovenian Forest Service (SFS) during forest inventory, and 2) the supplemented method for evaluating timber assortment structure in the first and second quarters of tree trunks. Beech tree quality was relatively high; the share of peeled and sliced veneer was 18% of the total growing stock. The research hypothesis thatthe most significant indicator of the quantity of high-quality assortment is the tree diameter at breast height has been confirmed through the use of statistical modeling. In addition to the 15 tree, stand and site variables examined, the beech quality explanatory model also included the following stand and habitat characteristics: share of beech in stand basal area, total basal area, crown size, tree forking, social status, and development stage. Results have shown that the standard method of beech tree quality evaluation is inadequate. Flaws in the carrying out of field quality evaluation have been found. Improvements in quality evaluation and ideas for the transformation of the SFS quality grades into assortment volumes in the first and second quarters of beech tree trunks have been proposed. ocenjevanje kakovosti bukev Fagus sylvatica L. Preserje Rakitna sortimentacija velikost krošnje premer debla true false false [B. Rantaša] Slovenski jezik Angleški jezik Diplomsko delo 2020-04-15 17:03:48 2020-04-15 17:03:52 2022-08-27 03:59:59 0000-00-00 00:00:00 2013 0 Ljubljana 2013 Ljubljana VII, 50 str. 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 630*17 3720358 UNI_Rantasa_Boris_2013.pdf UNI_Rantasa_Boris_2013.pdf 1 744B33D06AAF80C0DAEAEA133644D904 d3d59a4917ef3c72ff81cfc9330c0cffd23807a063fa470e67683f43bce01105 66a3b937-a1b8-11eb-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=127784 Biotehniška fakulteta 0 0 0