325 KB0 KB193820262024Oblišar, GalVilhar, Uršaštevilka:7/8letnik:82str. 284-292ISSN:0017-2723COBISSID:217945347URN:URN:NBN:SI:doc-6Q8VYHXUenslZveza gozdarskih društev SlovenijeGozdarski vestnikfenologijagozdna drevesagozdoviintenzivno spremljanje stanja gozdovSlovenijaRezultati dvajsetletnega spremljanja fenoloških faz dreves na ploskvah intenzivnega monitoringa gozdnih ekosistemov v Sloveniji| Results of twenty years of monitoring phenological phases of trees in intensive forest ecosystem monitoring plots in Slovenia|Phenological observations of trees in forests are an important source of information for determining the impact of climate change on forests and other natural ecosystems. In our study, we analyzed the onset of the phenological phases of first leaves and needles and general leaf yellowing for deciduous trees, as well as the length of the growing season in 8 intensive forest ecosystem monitoring plots in Slovenia. We looked at the tree species beech, oak, Scots pine, Austrian pine and spruce from 2004 to 2023. We find that the onset of the phenological phase of the first leaves is earlier in most plots than it was a few years ago. A typically earlier onset of the phenological phase of the first needles between years was also found for Scots pine in the Brdo plot and Austrian pine in the Gropajski pine plot. For beech, we found characteristic differences between the plots. The onset of the phenological phase of the first leaves of beech was the latest in the Lontovž and Gorica plots, while in the Fondek and Borovec plots it was on average simultaneous. For the general leaf yellowing phenological phase of beech, the differences between plots are smaller than for the first leaf phenological phase. Our results in the Borovec, Fondek and Gorica plots indicate a lengthening of the growing season, whereas in the Gorica plot the lengthening of the growing season is less pronounced and not statistically significantFenološka opazovanja dreves v gozdovih so pomemben vir podatkov za ugotavljanje vpliva podnebnih sprememb na gozdove in druge naravne ekosisteme. V naši raziskavi smo analizirali nastop fenoloških faz prvih listov in iglic ter splošnega rumenenja listov za listavce ter dolžino vegetacijskega obdobja na osmih ploskvah intenzivnega monitoringa gozdnih ekosistemov v Sloveniji. Obravnavali smo drevesne vrste bukev, dob, rdeči bor, črni bor in smreko v letih od 2004 do 2023. Ugotavljamo, da je nastop fenološke faze prvih listov na večini ploskev zgodnejši kot pred leti. Značilno zgodnejši nastop fenološke faze prvih iglic med leti smo ugotovili tudi za rdeči bor na ploskvi Brdo in črni bor na ploskvi Gropajski bori. Pri bukvi smo ugotovili značilne razlike med ploskvami. Nastop fenološke faze prvih listov bukve je bil najkasnejši na ploskvah Lontovž in Gorica, medtem ko je bil na ploskvah Fondek in Borovec v povprečju sočasen. Za fenološko fazo splošnega rumenenja listov pri bukvi so razlike med ploskvami manjše kot pri fenološki fazi prvih listov. Naši rezultati na ploskvah Borovec, Fondek in Gorica nakazujejo daljšanje vegetacijskega obdobja, pri čemer je na ploskvi Gorica daljšanje dolžine vegetacijskega obdobja manj izrazito in ni statistično značilnoTEXTznanstveno časopisjejournalsSlovenian National E-content AggregatorNational and University Library of SloveniaZveza gozdarskih društev Slovenije