20.500.12556/RUL-69732 Poškodovanost in rast smrekovega gorskega gozda na pokljuško-jeloviški planoti Decline and growth of montane forests of norway spruce on the Pokljuka-Jelovica plateau Na dveh izbranih raziskovalnih profilih s skupno površino 2770 ha so bili s kombiniranim površinskim snemanjem poškodovanosti dreves na CIR aeroposnetkih in z vzorčnim terenskim snemanjem dendrometrijskih kazalnikov na permanentnih ploskvah na terenu zajeti kazalniki zdravstvenega stanja in rasti gorskih smrekovih gozdov na območju Jelovice in Pokljuke. Gozdovi so še razmeroma ohranjeni, saj je le 10 % drevja na Jelovici in 35 % na Pokljuki očitno poškodovanega. Stari sestoji so močneje poškodovani kot mladi, vendar se slednji tudi na najmanjše poškodbe krošnje, odzivajo zelo občutljivo z zmanjšanim prirastkom in socialnim sestopom. Analiza prostorske razmestitve poškodb ne kaže prostorskega trenda. Z naraščanjem osutosti se debelinski prirastek znižuje pri vseh drevesnih vrstah, vendar to ne pomeni, da se zmanjšuje tudi sestojni prirastek. Ta je v zadnjem obdobju celo višji, kot je bil v prejšnjem. Two profiles encompassing the area of 2,770 hectares in total were selected to study factors concerning the condition and growth of montane forests of Norway spruce on the Pokljuka-Jelovica plateau (Slovenia) with an area survey of damaged trees with infrared color aerial photographs and a sample field survey of dendrometric factors in permanent plots in the field. The forests under consideration were found to be still in a relatively good condition since only 10 % of trees in Jelovica and 35 % of trees in Pokljuka were found to be evidently damaged. It was also observed that old-growth stands had deteriorated to a greater extend than stands of young growth though the latter were found to be very susceptible even to minor damages of crowns, which in tum result in increment decrease and social degradation. An analysis of spatial distribution of damages indicates no spatial trend. An increase in needle loss leads to a decrease in diameter increment in all tree species. Stand growth, however, does not decrease as well; to the contrary, it has recently been even higher than in the past. propadanje gozda kontrolne vzorčne metode prirastek smreka forest decline tree and stand growth aerial photographs CFI spunce true false false Slovenski jezik Angleški jezik Neznano 2015-07-10 21:34:58 2015-07-10 21:34:58 2024-08-10 03:59:07 0000-00-00 00:00:00 1990 0 0 Str. 27-68 Št. 36 1990 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 630*28:630*17Picea abies Karst6:630*48:630*58+630*56(497.4) 0351-3114 23889666 Ho¦Źevar.pdf Ho¦Źevar.pdf 1 D93AC6963739C0013EAEBAF36E161988 1518d8324851f767b3ecead1375343bebda3ae140f234570403729bbe44228b7 6c15e143-a1b3-11eb-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=100898 Biotehniška fakulteta 0 0 0