20.500.12556/RUL-69667 Zveza med širino branike in električno upornostjo živih tkiv pri jelki (Abies alba Mill.) na Ravniku Relationship between electrical resistence of the living tissue and tree-ring width in silver fir (Abies alba Mill.) on Ravnik (Slovenia) Na Ravniku smo sistematično raziskali 40 različno prizadetih jelk (Abies alba Mill.). Ugotovili smo, da je zveza med električno upornostjo živih tkiv (ER) in širino branike, nastale v istem letu, obratnosorazmerna in ni tesna. Višina odčitka se med leti spreminja in je v veliki meri odvisna od klime v preučevanem letu. S poškodovanostjo se je variabilnost odčitkov povečevala in to neodvisno od klimatskih razmer v preučevanem letu. Velika variabilnost odčitkov vodi ob nepoznavanju ekoloških dejavnikov v preučevanem letu k napačni ocenitvi fiziološkega stanja drevesa. On the research plot Ravnik 40 systematically selected silver firs (Abies alba Mill.) were analysed. It was established that the relationship between electrical resistance of living tissues (ER) and tree-ring formed in the year of measuring was negative and not high (r2=0,47). Year to year variation of ER is highly variable and is strongly influenced by climate. The variability of ER measurements increases with decreasing tree vitality and is independent of the climate. High variability together with improper interpretation of ecological factors can lead to false assessment of physiological tree condition. jelka Abies alba širina branike električna upornost Ravnik Slovenija electrical resistance of living tissues forest decline silver fir (Abies alba Mill.) dendrochronology Slovenia true false false Gozdarski inštitut Slovenije, Oddelek za gozdarstvo in oddelek za lesarstvo Biotehniške fakultete Slovenski jezik Angleški jezik Delo ni kategorizirano 2015-07-10 21:33:56 2015-07-10 21:33:56 2022-08-01 12:55:20 0000-00-00 00:00:00 1997 0 0 Str. 125-140 št. 54 1997 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 630*81+630*17Abies alba (Mill.)(497.4) 0351-3114 162185 RAZ_Levanic_Tom_1997.pdf RAZ_Levanic_Tom_1997.pdf 1 59CE47CAA8C193E1332B66F12AE7518B 8287add68be368363631b7179d4a6712c199462e05c63f871fa7d39210ff64d3 66b21c4b-5db9-11ec-abdb-00155dcfd717 20.500.12556/rul/209d582c-0576-4c84-a56c-a2584c4cea23 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=152147 Biotehniška fakulteta 0 0 0