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Analiza preživetja in okrevanja dreves po žledolomu
ID Novak, Alen (Author), ID Roženbergar, Dušan (Mentor) More about this mentor... This link opens in a new window

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Abstract
Analizirali smo preživetje in okrevanje dreves po žledolomu, ki se je zgodil med 30. januarjem in 10. februarjem 2014. Analizo smo izvedli 9 vegetacijskih dob po žledolomu, ter primerjali nekatere rezultate z analizo, ki je bila izvedena 3 vegetacijske dobe po omenjeni ujmi. Na dveh različnih lokacijah po Sloveniji, kjer so že bile izvedene meritve leta 2017, smo na vsaki lokaciji v več vzporednih transektih postavili 20 raziskovalnih ploskev. Skupno smo analizirali 406 dreves. V analizo so bile uvrščene 4 drevesne vrste in sicer: bukev, gorski javor, graden in pravi kostanj. Ugotovili smo, da se je v primerjavi z letom 2017 mortaliteta povečala in sicer pri bukvi za 3,7 %, gorskemu javorju za 3,6 %, pravemu kostanju za 2,4 % ter gradnu za 16,7 %. Z večanjem prsnega premera se je mortaliteta zmanjševala, prav vsa odmrla drevesa pa so enako, kot pri popisu iz leta 2017 imela več kot 75 % poškodovane krošnje. Ugotovili smo tudi, da se je številčnost epikormskih poganjkov na deblu pri drevesih v povprečju zmanjšala, v krošnji pa povečala, ter da se je dolžina poganjkov povečala tako na deblu kot v krošnji. Vpliva stopnje poškodovanosti na odganjanje na deblu nismo zaznali, ugotovili pa smo, da so drevesa z manjšimi poškodbami imela večjo jakost odganjanja poganjkov v krošnji.

Language:Slovenian
Keywords:žledolom, ujma, mortaliteta, epikormski poganjek, odganjanje
Work type:Bachelor thesis/paper
Typology:2.11 - Undergraduate Thesis
Organization:BF - Biotechnical Faculty
Publisher:[A. Novak]
Year:2023
PID:20.500.12556/RUL-150020 This link opens in a new window
UDC:630*23:630*42(043.2)=163.6
COBISS.SI-ID:164255235 This link opens in a new window
Publication date in RUL:13.09.2023
Views:361
Downloads:24
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Secondary language

Language:English
Title:Analysis of the survival and recovery of trees after an ice storm
Abstract:
Tree survival and recovery was analyzed after the ice storm that occurred between January 30 and February 10, 2014. The analysis was conducted nine growing seasons after the ice storm, and we compared some of the results with analyzes conducted three growing seasons after the ice storm. At two different sites in Slovenia, where measurements had already been made in 2017, we had established 20 research plots in several parallel transects at each site. In total, we analyzed 406 trees. During the analysis, 4 tree species were studied: European beech, sycamore maple, sessile oak, and a sweet chestnut. We found that compared to 2017, mortality had increased by 3.7 % for beech, 3.6 % for sycamore maple, by 2.4 % for sweet chestnut, and 16.7 % in sessile oak. Mortality then decreased with increasing breast diameter, and all trees that died during the last census had > 75 % crown damage. We had also found that the frequency of epicormic shoots decreased on the trunk of sampled trees and increased in the crown. Additionally, the length of the shoots increased both on the trunk and in the crown. We did not detect any effect of damage level on epicormic sprouting on the trunk, but we did find that trees with lower levels of damage had higher levels of epicormic sprouting in the crown.

Keywords:ice storm, natural disaster, mortality, epicormic sprout, repulsion

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