Ekologija pomlajevanja in možnosti zatiranja visokega pajesena (Ailanthus altissima (Mill.) Swingle)

Urbas, Blaž (author), Roženbergar, Dušan (mentor)

Visoki pajesen je ena najbolj razširjenih tujerodnih vrst v Sloveniji. V določenih razmerah je vrsta zelo invazivna. Ugotovili smo, da bližina odraslih dreves visokega pajesena ugodno vpliva na dominantnost te vrste. Tudi svetloba je ključni dejavnik, ugotovili smo, da dominira v vrzelih. Če prisotnosti odraslih dreves ni ali če so svetlobne razmere slabe, ga avtohtono rastje dohiti in mu konkurira. Ker je kemično zatiranje v gozdovih pri nas prepovedano, smo preizkusili tri vrste mehanskega zatiranja. Lomljenje primarne rasti se je izkazalo kot najmanj uspešno, najbolj uspešna metoda pa je zanesljivo puljenje celotnih osebkov. Posebno dobro se metoda obnese, če dodatno pospešujemo avtohtone drevesne vrste, ki visoki pajesen prerastejo. Lomljenje sekundarne rasti je bilo manj učinkovito. Visoki pajesen v tem primeru v dokaj velikem deležu preživi, vendar se rast precej upočasni. Uspešnost te metode se bo potencialno pokazala v naslednjih letih.

• Language: Slovenian
• Keywords: visoki pajesen, invazivnost, zatiranje, ekologija
• Work type: Bachelor thesis/paper
• Typology: 2.11 - Undergraduate Thesis
• Organization: BF - Biotechnical Faculty
• Publisher: [B. Urbas]
• Year: 2017
• PID: 20.500.12556/RUL-94250
• UDC: 630*23:630*18:630*17(043.2)=163.6
• COBISS.SI-ID: 4847014
• Publication date in RUL: 21.07.2017

URBAS, Blaž, 2017, Ekologija pomlajevanja in možnosti zatiranja visokega pajesena (Ailanthus altissima (Mill.) Swingle) [online]. Bachelor’s thesis. B. Urbas. [Accessed 15 May 2025]. Retrieved from: https://repozitorij.uni-lj.si/IzpisGradiva.php?lang=eng&id=94250

Secondary language

• Language: English
• Title: Regeneration ecology and possibilities of mechanical control of tree of heaven (Ailanthus altissima (Mill.) Swingle)

Abstract

Tree of heaven is one of the most widespread non-native tree species in Slovenia. Under certain conditions, the species can be very invasive. We concluded that the presence of seed trees of tree of heaven favorably affects the dominance of the species. The light conditions positively affect tree of heaven regeneration density, since the species is very light demanding. If there are no seed trees of tree of heaven in the vicinity and if the species is growing under the shade, the native tree species may successfully compete with tree of heaven. Since the use of chemical pest control is illegal in Slovenian forests, we tested three mechanical removal methods. Breaking of primary growth showed non-favorable results. The total removal (seedlings were pulled out) of tree of heaven showed the best results, we advise for it to be used in combination with the shading of tree of heaven by native species if possible. Breaking of secondary growth showed mixed results. In this case tree of heaven survived in quite high rates but its growth was significantly reduced.

• Keywords: tree of heaven, invasiveness, pest control, ecology