o:6851 SPONTANEOUS DEVELOPMENT OF MIXED STANDS OF FIR, SPRUCE AND BEECH ON MT. TARA SPONTANI RAZVOJ MEŠOVITIH SASTOJINA JELE, SMRČE I BUKVE NA TARI en sr The main objective of this study is to analyze the structural production and dynamic changes of mixed forests of fir, spruce and beech on Mt. Tara, in permanent sample plots which were exempt from the regular management over a period of more than 60 years (1955-2017). The results of the research indicate that during the analyzed period mixed forests of fir, spruce and beech have undergone a number of changes in structural and production terms. The significant presence of trees of large dimensions (volume accumulation) slowed down the developmental dynamics of these stands and made regeneration and recruitment difficult, which had a negative impact on their structural development and, in general, on the stability of these stands. The results show that selection forests are possible to achieve only with a permanent management approach and adherence to the modern principles of close-to-nature forest management. In this sense, selection cutting in the context of close-to-nature forest management is imposed as a means of accelerating the dynamics of development of these forests, repairing their structural development (by achieving and preserving their selection structure), ecological stability and functional values. On the contrary, the absence of activity and spontaneous development of these stands leads to a general devitalization and a deviation from the desired goals Osnovni cilj ovih istraživanja jeste da se analiziraju strukturne, proizvodne i dinamičke promene mešovitih šuma jele, smrče i bukve na Tari, na stalnim oglednim površinama, koje su izuzete iz redovnog gazdovanja u periodu dužem od 60 godina (1955-2017). Rezultati istraživanja ukazuju na to da su u analiziranom periodu mešovite šume jele, smrče i bukve pretrpele niz promena u strukturnom i proizvodnom smislu. Značajno prisustvo stabala jakih dimenzija (nagomilavanje zapremine) usporilo je dinamiku razvoja ovih sastojina i otežalo podmlađivanje i urastanje, što se negativno odrazilo na njihovu strukturnu izgrađenost i, generalno, na stabilnost ovih sastojina. Rezultati pokazuju da je prebirna šuma moguća jedino uz permanentan gazdinski pristup i poštovanje savremenih principa prirodi bliskog gazdovanja. U tom smisli, prebirna seča, u kontekstu prirodi bliskog gazdovanja, nameće se kao sredstvo ubrzanja dinamike razvoja ovih šuma, popravke njihove srukturne izgrađenosti (postizanja i očuvanja prebirne strukture), ekološke stabilnosti i funkcionalne vrednosti. Suprotno, odsustvo aktivnog delovanja i spontani razvoj sastojina vode ka njihovoj devitalizaciji i udaljavanju od željenih ciljeva. Mt. Tara, forests of fir, spruce and beech, spontaneous stand development, stand structure, stand dynamics Tara, šume jele, smrče i bukve, spontani razvoj, struktura sastojine, dinamika sastojine 1552101 1821-1046 1552099 10.5937/SustFor2490077O 2025-01-13T12:05:12.087Z 44 yes 46 Snežana Obradović 46 Milan Medarević 46 Damjan Pantić 46 Biljana Šljukić 46 Nenad Petrović 46 Dragan Borota 46 Aleksandar Popović application/pdf 868565 https://unilib.phaidrabg.rs/o:6851 no yes 16 70 92000001 2024 71A07 Sustainable Forestry: Collection 89-90 77 86 Институт за шумарство, Београд, Србија 2024