20.500.12556/RUL-150593 Vpliv velikosti vzorca inventurnih ploskev na zanesljivost ocene stopnje objedenosti gozdnega mladja: primer lovišča Peca-Mežica The influence of inventory plot sample size on the reliability of the regeneration browsing rate assessment: the case of the hunting ground Peca-Mežica V raziskavi smo želeli ugotoviti gostoto, vrstno strukturo, skupno in vrstno-specifične stopnje objedenosti gozdnega mladja ter optimalno stopnjo vzorčenja za oceno objedenosti gozdnega mladja na manjših območjih, da bo ta ocena dovolj zanesljiva za ustrezno odločanje v postopku obnove gozdnogospodarskih in lovsko upravljavskih načrtov na različnih prostorskih ravneh. Raziskovalni objekt je predstavljalo lovišče Peca-Mežica, ki meri 4485 ha in je locirano v Mežiški dolini na Koroškem, v njem prevladujejo bukova rastišča. V lovišču in celem GGO je prisotne največ srnjadi, sledita ji gams in navadni jelen. Metodologijo analize gozdnega mladja smo prevzeli po Zavodu za gozdove Slovenije in jo delno modificirali, saj smo poleg objedenosti terminalnih brstov pri popisu upoštevali tudi objedenost lateralnih poganjkov. Največja gostota mladja je bila skupno zabeležena v višinskem razredu do 15 cm. V drevesni sestavi mladja je prevladovala smreka, sledila sta gorski javor in bukev, ostalih vrst je bilo znatno manj. Skupna stopnja objedenosti (O) je znašala 52,3 %, skupna stopnja tekoče letne objedenosti (TLO) pa 26,6 %. Jelka, kot splošno priljubljena vrsta v prihrani divjadi, se je tudi v našem primeru izkazala kot močno objedena (O = 93,5 %, TLO = 68,4 %). Menimo, da v našem primeru skupna stopnja tekoče objedenosti (TLO) bolje nakazuje aktualni vpliv rastlinojedcev na gozdno mladje. Kot še ustrezno za razmere v raziskovalnem objektu smo določili 20-% vzorčno napako, po analizah naj bi za njeno doseganje zadoščal vzorec 23 popisnih ploskev. The main aims of our study were to determine the density and species composition and the overall and species-specific browsing rates of regeneration, and to determine the optimal sample size of census plots for estimating the overall browsing rate in regeneration, in order to make its estimation reliable to be used in forest and wildlife management planning. The study area was the Peca-Mežica hunting area, which covers 4485 ha and is located in the Mežica valley in the Koroška region. The area is dominated by the European beech forests. In the hunting ground and the entire region roe deer prevail, followed in abundance by chamois and red deer. The inventory methodology was adopted from the Slovenian Forest Service and partly modified: the browsing of lateral shoots was registered in addition to the browsing of the terminal bud. The highest total density of regeneration was recorded in the height class up to 15 cm. Spruce dominated the species composition, followed by sycamore maple and European beech, while other species were significantly less abundant. The overall browsing rate (O) was 52.3%, while the total current browsing rate (TLO) was 26.6%. Silver fir, as a generally popular species for browsing, was found to be heavily browsed in the study area (O 93.5%, TLO 68.4%). In our case, we believe that the total current browsing rate better indicates the contemporary impact of herbivores on forest regeneration. A sampling error of 20% was defined as still appropriate in the conditions present in the research area, and analyses suggested that the sample of 23 census plots would be sufficient to achieve this error. Gozdno mladje stopnja objedenosti lovišče lateralni poganjki divjad forest browse overbrowsing rate hunting ground lateral sprout game true false false [H. Štern] Slovenski jezik Angleški jezik Diplomsko delo/naloga 2023-09-21 07:16:56 2023-09-21 07:16:59 2023-09-25 14:47:48 0000-00-00 00:00:00 2023 0 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 630*52:630*45(497.4Mežica)(043.2)=163.6 230335 165682435 35119.pdf 35119.pdf 1 7D6AE7D99EACC66E39E297B686C1876D 10d80532cf2bea5cbc183350a41e2207a0aeecc815c2b5bc97be46ef987963ad 16ed5576-583e-11ee-82e5-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=175189 35121.pdf 35121.pdf 1 8D80947126A21050E8C3D2B4DD58A978 0726aa65f3c53f489d92ef066cde653311169c09e726d453102d407981549348 16ede31e-583e-11ee-82e5-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=175190 35122.pdf 35122.pdf 1 76B8F5FF5657D2909A190E0B4249816B 36d4b00208bbc143f3a01b56250ec89067a8ff385822faee69fee95f1c1cc030 16f34a72-583e-11ee-82e5-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=175191 Biotehniška fakulteta 0 0 0