Pinus sylvestris forest regeneration under different post-fire restoration practices in the northwestern Italian Alps |
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| Authors: | Rachele Beghin Emanuele Lingua Matteo Garbarino Michele Lonati Giovanni Bovio Renzo Motta Raffaella Marzano |
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| Institution: | 1. Department AGROSELVITER, University of Torino, via L. da Vinci, 44, I-10095 Grugliasco, TO, Italy;2. Department TESAF, University of Padova, viale dell’Università, 16, I-35020 Legnaro, PD, Italy;1. Department of Forest Engineering, University of Córdoba, Edificio Leonardo da Vinci-Campus de Rabanales, 14071 Córdoba, Spain;2. Engineering School, Major University, Campus Avenida Alemania, Avenida Alemania 0281 Temuco, Chile;3. Habitat Studies Institute, Autonomous University of Chile, Sede Central, Avenida Alemania 01090, 4780000 Temuco, Chile;4. Research Associate of Autonomous University of Chile;1. Centro de Ecologia Aplicada “Prof. Baeta Neves”, Instituto Superior de Agronomia, Universidade Técnica de Lisboa, 1349-017 Lisboa, Portugal;2. Escola Superior Agrária, Instituto Politécnico de Coimbra, 3040-316 Coimbra, Portugal;3. Centro de Investigação e de Tecnologias Agro-Ambientais e Tecnológicas (CITAB) & Departamento de Ciências Florestais e Arquitectura Paisagista (CIFAP), Universidade de Trás-os-Montes e Alto Douro, Apartado 1013, 5001-801 Vila Real, Portugal;4. CESAM, Departamento de Ambiente e Ordenamento, Universidade de Aveiro, 3810-193 Aveiro, Portugal;1. Graduate School of Geography, Clark University, MA, USA;2. WSL Institute for Snow and Avalanche Research SLF, Davos, Switzerland;3. Institute of Silviculture, Department of Forest- and Soil Sciences, University of Natural Resources and Life Sciences (BOKU), Vienna, Austria;4. Adam Mickiewicz University, Faculty of Biology, Department of Plant Ecology and Environment Protection, Umultowska 89, 61-614 Poznań, Poland;5. Department of Forest Sciences, University of Helsinki, Helsinki, Finland;6. Department of Forestry and Renewable Forest Resources, University of Ljubljana, Slovenia;7. Dendrology Department, University of Forestry, 1797 Sofia, Bulgaria;8. Faculty of Forestry and Wood Sciences, Czech University of Life Sciences, Prague, Czech Republic;9. Field Station Fabrikschleichach, Biocenter, University of Würzburg, Glashüttenstraße 5, 96181 Rauhenebrach, Germany;10. Università degli Studi di Torino, DISAFA, Largo Braccini 2, 10095 Grugliasco (TO), Italy;11. Montana Institute on Ecosystems, Montana State University, Bozeman, MT, USA;12. Swiss Federal Institute for Forest, Snow and Landscape Research WSL, Birmensdorf, Switzerland;1. Environmental Management Center, Mykolas Romeris University, Ateities g. 20, LT-08303 Vilnius, Lithuania;2. GRAM (Grup de Recerca Ambiental Mediterrània), Department of Geography, University of Barcelona, Montalegre, 6, 08001, Barcelona, Spain;3. Department of Natural Sciences, Dickinson State University, Dickinson, ND, USA;4. University of Zagreb, Faculty of Agriculture, Department of General Agronomy, Zagreb, Croatia;1. Institute of Landscape Planning and Ecology, University of Stuttgart, Keplerstr. 11, D-70174 Stuttgart, Germany;2. Department of Agriculture, Forest and Food Sciences, University of Turin, Largo Paolo Braccini 2, I-10095 Grugliasco, Italy;3. Botanical Garden, University of Bern, Altenbergrain 21, CH-3013 Bern, Switzerland;4. Institute of Geography and Geoecology, Karlsruher Institute of Technology, Kaiserstr. 12, D-76131 Karlsruhe, Germany;5. Swiss Federal Institute for Forest, Snow and Landscape Research WSL, Insubric Ecosystems, A Ramèl 18, CH-6593 Cadenazzo, Switzerland |
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| Abstract: | It is frequently believed that a post-fire environment requires immediate actions in order to be restored. Salvage logging followed by plantation is a common post-fire restoration practice in many forests of the northwestern Italian Alps.The objectives of this study were to assess the impact of active and passive management techniques on the restoration of a burned area of the Aosta Valley and to determine which approach is the most suitable for enhancing Pinus sylvestris regeneration after stand replacing wildfires.The influence of five management options (no intervention; salvage logging; broadleaves plantation; Larix decidua plantation; P. sylvestris or Pseudotsuga menziesii plantation) and environmental variables on natural regeneration structure and composition was evaluated through direct gradient analysis.Pinus sylvestris and Populus tremula were the dominant tree species (40 and 29%, respectively) in the regeneration layer. Density, size, and structural diversity of natural regeneration were higher in the no intervention area. The proximity to forest edge was found to be the most important environmental variable.This study provided evidence that taking advantage of natural restoration processes may be a suitable alternative strategy to the active restoration practices adopted according to the Aosta Valley policy of post-fire management. |
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