20.500.12556/RUL-16105 Produkcija vejevja v bukovih sestojih na karbonatni podlagi diplomsko delo - visokošolski strokovni študij - 1. stopnja Pomen poznavanja celotne produkcije gozdnih ekosistemov oziroma gozdnega drevja se povečuje. Namen pričujoče naloge je ugotoviti in proučiti odvisnost količine vejevja v enomernih bukovih sestojih na karbonatni matični podlagi odprsnega premera (debeline) dreves in od dimenzij ter utesnjenosti krošnje. Terenski del naloge se je izpeljalo na roškem masivu, v gozdnogospodarski enoti Soteska. V vzorec se je zajelo drevje različnih debelin, različno velikih oziroma utesnjenih krošenj. Vsem izbranim drevesom smo izmerili prsni premer ter ocenili socialni status, velikost in utesnjenost krošnje ter zabeležili morebiten pojav večvrhatosti (razsohlosti). Nato se je drevje posekalo in ob tem izvedlo debelno analizo. Sledilo je tehtanje vejevja. Rezultati študije kažejo, da suha masa vejevja zavzema okvirno 6-20 % v nadzemni drevesni masi. Zelo podobne deleže dosega volumen vejevja. Obe količini - suha masa in volumen - vejevja se povečujeta z debelino drevesa. Drobnejše veje (premer do 3 cm) prevladujejo nekje do 45 cm prsnega premera. Bivariatne analize so pokazale, da masa vejevja narašča v odvisnosti od prsnega premera, višine drevesa, starosti, deleža krošnje, premera krošnje in deblovine drevesa. Prav tako je količina vejevja večja pri večvrhatem drevju primerljivih debelin. Pri okularno ocenjeni utesnjenosti krošnje nismo potrdili vpliva na količino vejevja. The meaning of total forest ecosystem production or of total tree production increases. The aim of this work is to establish and to analyse the dependency of branches quantity in even-aged beech stands on carbonate bedrock on diameter at breast height and on dimension of crowns. Field work was carried out on massif of Rog, in forest management unit Soteska. Trees of different thickness and of different crowns were sampled. For all the trees diameter at breast height was measured and the social status and crown characteristics were visually estimated. After that, the trees were cut and stem analyses were performed. That was followed by branch weighing. The results show, that dry mass of branches accounts 6-20% of above ground dendromass. Similar sharesare achieved by branch volume. Both quantities - dry mass and volume - increases with increasing tree thickness. Twigs (thinner branches with diameter up to 3cm) prevail by tress with diameter at breast height below 45 cm. Bivariate analyses show, that branch dry mass increases with diameter at breast height, tree height, age, crown share, crown diameter and stemwood. Thequantity of branches is higher at forked trees of similar thickness, as well. For visually estimated crown isolation the influence on branch quantity was not confirmed. vejevje deblovina debeljad suha masa volumen Fagus sylvatica true false false [U. Vidmar] Slovenski jezik Neznan jezik Diplomsko delo/naloga 2014-07-11 13:44:46 2014-07-11 13:44:46 2022-07-11 17:02:21 0000-00-00 00:00:00 2012 0 Ljubljana 0 VIII, 35 str. 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 630*53(043.2)=163.6 3472550 DIP_Vidmar_Uros_2012.pdf DIP_Vidmar_Uros_2012.pdf 1 6F095A6EE319B994307841B1554F0487 c08f19f53cf2d50174d1a080f29e2eb1d3dabd0a7ef028268a28bd9b1b515e27 5f5501d3-a1b8-11eb-a523-00155dcfd717 20.500.12556/rul/f56bbb34-376f-4d68-9ef1-f447671fbdc8 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=127652 Biotehniška fakulteta 0 0 0