343 KB0 KB193820262024Csóka, GyörgyHauptman, TinePuhek, AljažZidar, Simonštevilka:10letnik:82str. 391-409ISSN:0017-2723COBISSID:224787971URN:URN:NBN:SI:doc-C4YODCC0enslZveza gozdarskih društev SlovenijeGozdarski vestnikdobgozdarstvogradenhrastodmiranje hrastovsanitarni posekPregled odmiranja hrastov (Quercus spp.) v Evropi in pri nas| Review of the oak (Quercus spp.) decline in Europe and in Slovenia|The aim of this study was to determine the most important abiotic and biotic factors that contribute to the decline of sessile (Quercus robur) and pedunculate oak (Q. petraea) in Europe and in Slovenia and to determine their role in Manion‘s decline disease spiral by reviewing the scientific literature. To further determine the situation of sessile and pedunculate oak in Slovenia we analysed the data from Slovenian Forest Service regarding the felling of both oaks in the period from 1995 to 2022. After the literature review, we concluded that the decline phenomena of sessile and pedunculate oak are caused by a complex of biotic and abiotic factors. As the main predisposing and, at the same time, inciting factor in sessile and pedunculate oak decline, the literature mentions drought, that is being enhanced with the changing climate. From biotic factors, different species of fungi, phytopthora, and introduced invasive species are mentioned. The sanitation felling of sessile oak in the analysed period accounted for approximately 35 % (204,000 m 3 ) of all felling of sessile oak, and the sanitation felling of pedunculate oak accounted for approximately 27 % (1,109,000 m 3 ) of all felling of pedunculate oak. Fungal diseases were predominant reason for sanitation felling of sessile oak and sleet for sanitation felling of pedunculate oakNamen raziskave je bil s pregledom domače in tuje literature določiti najpomembnejše abiotske in biotske dejavnike odmiranja doba (Quercus robur) in gradna (Q. petraea) v Evropi ter pri nas in jim določiti nivo v Manionovi spirali propadanja. Pregledu literature je sledila analiza podatkov Zavoda za gozdove Slovenije o poseku gradna in doba v obdobju 1995–2022 na območju Slovenije. Po pregledu literature smo ugotovili, da na odmiranje gradna in doba vpliva kompleks abiotskih in biotskih škodljivih dejavnikov. Kot poglavitni dejavnik predispozicije in hkrati tudi sprožilni dejavnik se najpogosteje omenja sušni stres, katerega vpliv postaja s spreminjanjem podnebja vedno večji, od biotskih dejavnikov pa predvsem različne vrste gliv in fitoftor ter vnos najrazličnejših tujerodnih vrst. V proučevanem obdobju sta varstveno-sanacijski posek in posek oslabelega drevja pri dobu znašala kar približno 35 % skupne količine poseka oz. približno 204.000 m 3 , pri gradnu pa približno 27 % oz. približno 1.109.000 m 3 . Prevladujoči vzrok za varstveno-sanacijski posek in posek oslabelih dreves doba so bile bolezni oz. glive, za graden pa je bil to žledTEXTznanstveno časopisjejournalsSlovenian National E-content AggregatorNational and University Library of SloveniaZveza gozdarskih društev Slovenije