Causes and consequences of large-scale windthrow on the development of fir-beech forests in the Dinaric mountains

We investigated several aspects of windthrow that are relevant to our understanding and management of forest ecosystems. As an example, we used an extreme event in December 2017, when the strongest storm in recent history occurred in the Slovenian Dinaric High Karst. We examined influential...

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Main Authors: Matjaž Čater, Ajša Alagić, Mitja Ferlan, Jernej Jevšenak, Aleksander Marinšek
Format: Article
Language:deu
Published: Slovenian Forestry Institute 2023-06-01
Series:Acta Silvae et Ligni
Online Access:https://dirros.openscience.si/IzpisGradiva.php?id=16664
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author Matjaž Čater
Ajša Alagić
Mitja Ferlan
Jernej Jevšenak
Aleksander Marinšek
author_facet Matjaž Čater
Ajša Alagić
Mitja Ferlan
Jernej Jevšenak
Aleksander Marinšek
author_sort Matjaž Čater
collection DOAJ
description We investigated several aspects of windthrow that are relevant to our understanding and management of forest ecosystems. As an example, we used an extreme event in December 2017, when the strongest storm in recent history occurred in the Slovenian Dinaric High Karst. We examined influential factors such as soil properties, wind speed, precipitation and ecological consequences for the affected forests. Soil properties were measured around standing and fallen silver fir trees at all three research sites. Tree species composition in the regeneration was observed on plots with chemical and acoustic ungulate deterrents and on control plots without deterrents. Economic estimates of yield loss due to damage were calculated at the national level. A model of the potential threat from windthrow was also developed based on data collected from windthrow events and meteorological data over the past 20 years. Our results indicate that soil depth and mineral fraction depth were similar at sites with and without damaged trees and were not the determining factors for tree toppling. Plots with acoustic deterrents showed the most effective regeneration development, the least decline in silver fir and the greatest increase in noble hardwood seedlings, while plots with chemical deterrents showed the least browsing damage. The estimated economic loss of €16.1 million is 6.6% less than the harvest under normal conditions. The economic loss was relatively low due to the nature of the storm, with the predominant type of damage being uprooted trees with no damaged trunks. The windthrow hazard model revealed that a large number of consecutive events with strong winds in each section weakened the stand, which was subsequently knocked down during the next extreme wind and rainfall event.
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spelling doaj.art-a22275d93d6b46ba97200a6b63d7e3f62023-06-28T07:49:39ZdeuSlovenian Forestry InstituteActa Silvae et Ligni2335-31122335-39532023-06-01130173210.20315/ASetL.130.2Causes and consequences of large-scale windthrow on the development of fir-beech forests in the Dinaric mountainsMatjaž ČaterAjša AlagićMitja FerlanJernej JevšenakAleksander Marinšek We investigated several aspects of windthrow that are relevant to our understanding and management of forest ecosystems. As an example, we used an extreme event in December 2017, when the strongest storm in recent history occurred in the Slovenian Dinaric High Karst. We examined influential factors such as soil properties, wind speed, precipitation and ecological consequences for the affected forests. Soil properties were measured around standing and fallen silver fir trees at all three research sites. Tree species composition in the regeneration was observed on plots with chemical and acoustic ungulate deterrents and on control plots without deterrents. Economic estimates of yield loss due to damage were calculated at the national level. A model of the potential threat from windthrow was also developed based on data collected from windthrow events and meteorological data over the past 20 years. Our results indicate that soil depth and mineral fraction depth were similar at sites with and without damaged trees and were not the determining factors for tree toppling. Plots with acoustic deterrents showed the most effective regeneration development, the least decline in silver fir and the greatest increase in noble hardwood seedlings, while plots with chemical deterrents showed the least browsing damage. The estimated economic loss of €16.1 million is 6.6% less than the harvest under normal conditions. The economic loss was relatively low due to the nature of the storm, with the predominant type of damage being uprooted trees with no damaged trunks. The windthrow hazard model revealed that a large number of consecutive events with strong winds in each section weakened the stand, which was subsequently knocked down during the next extreme wind and rainfall event.https://dirros.openscience.si/IzpisGradiva.php?id=16664
spellingShingle Matjaž Čater
Ajša Alagić
Mitja Ferlan
Jernej Jevšenak
Aleksander Marinšek
Causes and consequences of large-scale windthrow on the development of fir-beech forests in the Dinaric mountains
Acta Silvae et Ligni
title Causes and consequences of large-scale windthrow on the development of fir-beech forests in the Dinaric mountains
title_full Causes and consequences of large-scale windthrow on the development of fir-beech forests in the Dinaric mountains
title_fullStr Causes and consequences of large-scale windthrow on the development of fir-beech forests in the Dinaric mountains
title_full_unstemmed Causes and consequences of large-scale windthrow on the development of fir-beech forests in the Dinaric mountains
title_short Causes and consequences of large-scale windthrow on the development of fir-beech forests in the Dinaric mountains
title_sort causes and consequences of large scale windthrow on the development of fir beech forests in the dinaric mountains
url https://dirros.openscience.si/IzpisGradiva.php?id=16664
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