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Kakovost bukve v gozdnogospodarski enoti Preserje-Rakitna : diplomsko delo - univerzitetni študij
Rantaša, Boris (Author), Bončina, Andrej (Mentor) More about this mentor... This link opens in a new window, Kadunc, Aleš (Co-mentor)

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Abstract
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.

Language:Slovenian
Keywords:ocenjevanje kakovosti, bukev, Fagus sylvatica L., Preserje, Rakitna, sortimentacija, velikost krošnje, premer debla
Work type:Undergraduate thesis (m5)
Tipology:2.11 - Undergraduate Thesis
Organization:BF - Biotechnical Faculty
Year:2013
Publisher:[B. Rantaša]
Number of pages:VII, 50 str.
UDC:630*17
COBISS.SI-ID:3720358 Link is opened in a new window
Views:215
Downloads:86
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Secondary language

Language:English
Title:Beech tree quality in forest management unit Preserje - Rakitna
Abstract:
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.


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