Use of 3d process-based model to determine forests protecting against rockfall – case study Kamniška Bistrica

This case study of the Kamniška Bistrica forest management unit presents a 3D process-based model for determining forests protecting against rockfall. Modelling was performed using the ArcGIS 9.3.1 tool; the kinetic energy of rockfalls was calculated using the Conefall friction model. The finished m...

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Bibliographic Details
Main Authors: Mitja Skudnik, Gal Kušar
Format: Article
Language:English
Published: ZRC SAZU, Založba ZRC 2011-12-01
Series:Acta Geographica Slovenica
Subjects:
Online Access:https://ojs.zrc-sazu.si/ags/article/view/1311
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author Mitja Skudnik
Gal Kušar
author_facet Mitja Skudnik
Gal Kušar
author_sort Mitja Skudnik
collection DOAJ
description This case study of the Kamniška Bistrica forest management unit presents a 3D process-based model for determining forests protecting against rockfall. Modelling was performed using the ArcGIS 9.3.1 tool; the kinetic energy of rockfalls was calculated using the Conefall friction model. The finished map of protective forests was compared with the map of protective functions of forests, made by the Slovenia Forest Service. The protective function map covers 90% of forests classified in the 1st category forests by the modelled map. Taking into consideration the entire forest area in the forest management unit, the maps match in 48% of cases. The differences appear predominantly in higher altitudes where the protective function map includes dwarf pine sites, and in lower altitudes where the map does not consider the possibility that trees can perform their protective functions where the terrain becomes level. The aim of this article is to draw attention to the possibilities of using the models as tools for determining forests protecting against rockfalls.
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spelling doaj.art-3d971c4f91354409bd0c160040410b482022-12-22T04:18:20ZengZRC SAZU, Založba ZRCActa Geographica Slovenica1581-66131581-83142011-12-0151225327610.3986/AGS512021035Use of 3d process-based model to determine forests protecting against rockfall – case study Kamniška BistricaMitja SkudnikGal KušarThis case study of the Kamniška Bistrica forest management unit presents a 3D process-based model for determining forests protecting against rockfall. Modelling was performed using the ArcGIS 9.3.1 tool; the kinetic energy of rockfalls was calculated using the Conefall friction model. The finished map of protective forests was compared with the map of protective functions of forests, made by the Slovenia Forest Service. The protective function map covers 90% of forests classified in the 1st category forests by the modelled map. Taking into consideration the entire forest area in the forest management unit, the maps match in 48% of cases. The differences appear predominantly in higher altitudes where the protective function map includes dwarf pine sites, and in lower altitudes where the map does not consider the possibility that trees can perform their protective functions where the terrain becomes level. The aim of this article is to draw attention to the possibilities of using the models as tools for determining forests protecting against rockfalls.https://ojs.zrc-sazu.si/ags/article/view/1311forestryphysical geography3d process-based modellingprotective function of forestsrockfallskamniška bistrica
spellingShingle Mitja Skudnik
Gal Kušar
Use of 3d process-based model to determine forests protecting against rockfall – case study Kamniška Bistrica
Acta Geographica Slovenica
forestry
physical geography
3d process-based modelling
protective function of forests
rockfalls
kamniška bistrica
title Use of 3d process-based model to determine forests protecting against rockfall – case study Kamniška Bistrica
title_full Use of 3d process-based model to determine forests protecting against rockfall – case study Kamniška Bistrica
title_fullStr Use of 3d process-based model to determine forests protecting against rockfall – case study Kamniška Bistrica
title_full_unstemmed Use of 3d process-based model to determine forests protecting against rockfall – case study Kamniška Bistrica
title_short Use of 3d process-based model to determine forests protecting against rockfall – case study Kamniška Bistrica
title_sort use of 3d process based model to determine forests protecting against rockfall case study kamniska bistrica
topic forestry
physical geography
3d process-based modelling
protective function of forests
rockfalls
kamniška bistrica
url https://ojs.zrc-sazu.si/ags/article/view/1311
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AT galkusar useof3dprocessbasedmodeltodetermineforestsprotectingagainstrockfallcasestudykamniskabistrica