50 KB424 KB59 KB197320132004Bončina, AndrejJarni, KristjanRobič, Dušan24 straništevilka:74str. 141-164ISSN:0351-3114COBISSID:1325734URN:URN:NBN:SI:doc-P0S3M1BFenInštitut za gozdno in lesno gospodarstvoUniverza v Ljubljani, Biotehniška fakulteta, Oddelek za gozdarstvo & Oddelek za lesarstvoZbornik gozdarstva in lesarstvabukevjelenjadjelkajelovo-bukovi gozdovisrnjadAnalysis of the influece of ungulates on the regeneration of Dinaric fir-beech forests in the research site Trnovec in the Kočevje forest managementregion|In the period 1970-2000, 152 fenced-in areas were built in the Kočevje Forest Management Region with an aim to protect tree seedlings and saplings from ungulatesć activity and to monitor the influence of roe and red deer on natural regeneration. The average surface area of fenced areas is 0.71 ha. Using the pair comparison technique (fenced vs. unfenced areas), the structureand the composition of the natural regeneration of tree species as well as complete shrub and herb vegetation were analysed in the research site Trnovec. Furthermore, the vegetation was investigated using the Braun-Blanquetmethod. The research results show significant differences between fenced and unfenced areas, both in tree species composition and in theheight structure of the sapling community. In fenced areas the total numberof saplings taller than 50 cm is higher and an increase is also evident in the number of saplings of silver fir Abies alba, sycamore Acer pseudoplatanus, elm Ulmus glabra and other minor tree species. There are also significant differences in species composition and in the abundance of plant species in the herb layer. The results show that natural regeneration of Dinaric fir-beech forests is successful, provided the influence of ungulates is excludedV gozdnogospodarskem območju Kočevje so v obdobju 1970-2000 zgradili 152 gozdnih ograj, ki so namenjene zaščiti pomladka in mladovja pred velikimi rastlinojedi in preučevanju vpliva populacij jelenjadi in srnjadi na razvoj rastlinja. Poprečna velikost ograjene površine je 0,71 ha. Z vzorčenjem na transektu (N=42 ploskev, 4x4 m) v raziskovalnem objektu Trnovec smo podrobno raziskali sestavo in strukturo pomladka in drugega rastlinja v zeliščni in grmovni plasti na ograjeni in neograjeni površini. Analizo rastlinja smo dopolnili s tremi fitocenološkimi popisi. Pri parni primerjavi smo ugotovili značilne razlike v višinski strukturi in sestavi pomladka. Na ograjeni površini smo evidentirali več mladic, ki so višje od 50 cm, in znatno večje število mladic jelke (Abies alba), javorja (Acer pseudoplatanus), bresta (Ulmus glabra) in drugih minoritetnih drevesih vrst. Značilne so tudi razlike v sestavi in obilju zelnatih rastlin. Ob izključitvi vpliva jelenjadi in srnjadi poteka naravna obnova povsem nemotenoTEXTznanstveno časopisjejournalsSlovenian National E-content AggregatorNational and University Library of SloveniaUniverza v Ljubljani, Biotehniška fakulteta