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Modelling facilitates silvicultural decision-making for improving the mitigating effect of beech (Fagus Sylvatica L.) dominated Alpine forest against rockfall
Kajdiž, Petra (Author), Diaci, Jurij (Author), Rebernik, Jernej (Author)

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Abstract
In southeast Europe, silvicultural measures for improving forest protective effects against rockfall are often based on unsystematic observation and experience. We compared formalised expert assessment of forest protective effects and silvicultural decision-making with an approach supported by modelling (Rockyfor3D, Rockfor.NET, shadow angle method). The case study was conducted in Fagus sylvatica dominated Alpine forests above the regional road leading to the Ljubelj pass, in Slovenia. We analysed rock sources, silent witnesses, forest structure and regeneration. Expert assessment indicated acceptable protection effects of the forest and their decline in the future. Modelling revealed several road sections endangered by rockfalls. It also indicated subtle differences between silvicultural alternatives: current forest, current forest with cable crane lines, selection forest and non-forested slope. This outcome may be due to short transition zones, small rock sizes, low rock source heights and low resolution of the digital elevation model. Modelling requires more initial input than formalised expert assessment but gives spatially explicit results that enable comparison of silvicultural alternatives, coordination of silviculture and forest operations, and delineation of protection forests. Modelling also supported prioritising of silvicultural measures, where the necessity of silvicultural measures increases with increasing rockfall susceptibility and decreasing long-term stability of stands.

Language:English
Keywords:beech forest, protective function, rockfall, Slovenia, Rockyfor3D, Rockfor.NET, Viewshed
Work type:Article (dk_c)
Tipology:1.01 - Original Scientific Article
Organization:BF - Biotechnical Faculty
Year:2015
Number of pages:Str. 2178-2198
Numbering:Vol. 6, iss. 6
UDC:630*22
ISSN on article:1999-4907
DOI:10.3390/f6062178 This link opens in a new window
COBISS.SI-ID:4148646 This link opens in a new window
Views:1007
Downloads:303
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Record is a part of a journal

Title:Forests
Shortened title:Forests
Publisher:MDPI
ISSN:1999-4907
COBISS.SI-ID:3872166 This link opens in a new window

Document is financed by a project

Funder:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije (ARRS)
Funding Programme:Young Researchers

Funding Programme:Slovenian Ministry for Agriculture, Forestry and Food
Project no.:Young Researchers

Licences

License:CC BY 4.0, Creative Commons Attribution 4.0 International
Link:http://creativecommons.org/licenses/by/4.0/
Description:This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.
Licensing start date:19.06.2015

Secondary language

Language:Slovenian
Keywords:bukev, alpski gozd, varovalna funkcija, Rockyfor3D, Rockyfor.NET

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