Uspešnost spodbujene migracije hrastov s saditvijo puljenk v pretežno bukovih gozdovih

Godec, Anja Manca (author), Roženbergar, Dušan (mentor), Jarni, Kristjan (comentor)

V raziskavi smo izvedli umetno obnovo s puljenkami treh vrst hrasta: gradna, cera in puhastega hrasta na različnih pretežno bukovih rastiščih. Namen metode je bil ugotoviti, ali bodo drevesne vrste, ki izhajajo iz drugačnih podnebij kot mesta saditve, zagotovile uspešno obnovo gozdov z možnostjo prilagajanja. Poleg tega nas je zanimalo še, ali bo delež preživelih puljenk hrasta večji na boljših rastiščih. Metodo dela smo razdelili na tri faze: 1.) izbor semenskih sestojev (vir puljenk), 2.) puljenje in saditev in 3.) opravljanje prve meritve. Od vsake vrste smo napulili 300 puljenk. Saditev puljenk je potekala na treh lokacijah: na Vrhniki zgoraj, Vrhniki spodaj in v Goliščah. Sadili smo na ploskve v obliki trikotnika, velikosti 2 × 2 × 2 m. Znotraj vsakega trikotnika smo posadili 10 puljenk vsake vrste. Vsak trikotnik je vseboval 30 puljenk hrastov. Na vsaki lokaciji smo naredili 10 trikotnikov tako, da je imela vsaka lokacija skupaj 300 puljenk – 100 gradna, 100 cera in 100 puhastega hrasta. Meritve ploskev in osebkov so bile opravljene znotraj QGIS paketa. Obdelava podatkov je potekala v Microsoft Office Excelu, JASP-u ter v R programu. Meritve so pokazale, da je v prvi vegetacijski sezoni po saditvi preživelo več kot polovico vseh puljenk. Najbolj uspešni vrsti v preživetju in rasti sta bili cer in graden, puhasti hrast pa je bil bistveno manj uspešen. Razmere za preživetje in rast vseh puljenk so bile najboljše na Vrhniki spodaj. Preživetje je bilo najslabše na Vrhniki zgoraj, pogoji za rast pa v Goliščah. Prav tako nam ni uspelo dokazati, da je delež preživetja puljenk večji na boljših rastiščih.

• Language: Slovenian
• Keywords: puljenke, spodbujena migracija, saditev, hrast, graden, cer, puhasti hrast
• Work type: Master's thesis/paper
• Typology: 2.09 - Master's Thesis
• Organization: BF - Biotechnical Faculty
• Publisher: [M. Cholkova, A. M. Godec]
• Year: 2024
• PID: 20.500.12556/RUL-164297
• UDC: 630*232(043.2)=163.6
• COBISS.SI-ID: 212285955
• Publication date in RUL: 20.10.2024

GODEC, Anja Manca, 2024, Uspešnost spodbujene migracije hrastov s saditvijo puljenk v pretežno bukovih gozdovih [online]. Master’s thesis. M. Cholkova, A. M. Godec. [Accessed 17 May 2025]. Retrieved from: https://repozitorij.uni-lj.si/IzpisGradiva.php?lang=eng&id=164297

Secondary language

• Language: English
• Title: Monitoring assisted migration success of transplanted oak seedlings in beech dominated forests

Abstract

In the research, we carried out artificial regeneration with transplanted seedlings of three types of oak: sessile oak, turkey oak and downy oak in different predominantly beech habitats. The purpose of the method was to determine whether tree species originating from different climates than the planting sites will ensure successful restoration of forests with the possibility of adaptation. In addition, we were interested in whether the proportion of surviving oak seedlings would be higher on better sites. The work method was divided into three phases: 1.) Selection of seed stands (source of transplanted seedlings), 2.) Pulling and planting and 3.) Performing the first measurement. We pulled 300 seedlings of each tree species. The planting of the seedlings took place in three locations: on Vrhnika above, Vrhnika below and in Golišče. We planted on plots in the shape of a triangle of size 2 × 2 × 2 m. Inside each triangle we planted 10 seedlings of each species. Each triangle contained 30 oak seedlings. At each location, we made 10 triangles so that each location had a total of 300 transplaneted seedlings – 100 sessile oak, 100 turkey oak and 100 downy oak. Measurements of plots and seedlings were made within the QGIS package. Data processing took place in Microsoft Office Excel, JASP and R program. The measurements showed that more than half of all the transplanted seedlings survived in the first growing season after planting. Turkey oak and sessile oak were the most successful in terms of survival and growth, while downy oak was significantly less successful. The conditions for the survival and growth of all transplanted seedlings were the best on Vrhnika below. Survival rate was the worst on Vrhnika above and growth conditions were worst in Golišče. Also, we were unable to prove that the survival rate of transplanted seedlings is higher in better habitats for neither of the tree species.

• Keywords: transplanted seedlings, assisted migration, planting, oak, sessile oak, turkey oak, downy oak