In 2013, the Municipality of Seren del Grappa launched a project aimed at reducing public energy expenditure through the construction of a 550 kW wood biomass heating plant, primarily supplied by municipal forests, with the objective of creating a short “forest-wood-energy” supply chain. However, a large proportion of the municipal beech stands, historically managed as coppice, are currently in a state of silvicultural abandonment, a condition that promotes their gradual transition to high forest, a management system that does not ensure a regular production of firewood. Within this context, the present study forms part of a long-term project initiated in collaboration with the University of Padua, aimed at assessing the evolution of both vegetative (agametic) and seed-origin (gametic) regeneration of beech within three permanent sample plots subjected in 2013 to different silvicultural treatments (Area A -coppicing; Area B-control; Area C-shelterwood cutting). The monitoring carried out in 2025 highlighted, in Area A, a strong sprouting response accompanied by a high stump mortality rate; the intense canopy opening also promoted abundant seed regeneration. Area B showed the lowest regeneration density, both vegetative and seed-origin, exhibiting a progressive decline. Area C, subjected to a less intensive intervention, presented intermediate conditions: lower stump mortality compared to Area A, but a weaker sprouting response and reduced seedling density, partly due to competition from young silver fir and Norway spruce individuals. The results confirm that different harvesting intensities significantly influence regeneration dynamics, providing useful insights to guide future forest management strategies in the Veneto Region aimed at restoring the productive function of abandoned beech stands and revitalizing the wood-energy supply chain, while contributing to the debate on the possible conversion of high forest beech stands back to coppice, which is currently prohibited under national legislation (Legislative Decree 34/2018, Art. 7, paragraph 7).
Nel 2013 il Comune di Seren del Grappa ha avviato un progetto volto alla riduzione della spesa energetica pubblica attraverso la realizzazione di una centrale termica a biomassa legnosa da 550 kW, alimentata prevalentemente dai boschi comunali, con l’obiettivo di creare una filiera corta “bosco-legno-energia”. Tuttavia, gran parte delle faggete comunali, storicamente governate a ceduo, si trovano oggi in stato di abbandono colturale, condizione che ne favorisce l’evoluzione verso la fustaia, forma di governo non idonea a garantire una produzione regolare di legna da ardere. In tale contesto si inserisce il presente lavoro, parte di un progetto pluriennale avviato in collaborazione con l’Università di Padova, finalizzato a valutare l’evoluzione della rinnovazione agamica e gamica del faggio in tre aree di saggio sottoposte nel 2013 a differenti trattamenti selvicolturali (area A-ceduazione, area B-testimone e area C-taglio di sementazione). Il monitoraggio condotto nel 2025 ha evidenziato, nell’area A, una buona risposta pollonifera, accompagnata tuttavia da un’elevata mortalità delle ceppaie; l’intensa scopertura del soprassuolo ha inoltre favorito un’abbondante rinnovazione da seme. L’area B si è rivelata quella con la minore densità di rinnovazione, sia agamica sia gamica, mostrando un progressivo decadimento. L’area C, sottoposta a un intervento meno intenso, ha presentato condizioni intermedie: una mortalità delle ceppaie inferiore rispetto all’area A, ma una risposta pollonifera e una densità di semenzali più contenute, anche a causa della competizione esercitata dalle giovani conifere di abete bianco e abete rosso. I risultati confermano come le diverse intensità di intervento influenzino in modo significativo la dinamica della rinnovazione, fornendo indicazioni utili per orientare la Regione Veneto verso future scelte gestionali finalizzate al recupero produttivo delle faggete abbandonate e al rilancio della filiera legno-energia, contribuendo al dibattito in merito alla possibilità di conversione delle faggete da fustaia a ceduo, attualmente non consentita dalla legislazione nazionale (D.Lgs. 34/2018, art. 7, comma 7).
Monitoraggio della rinnovazione naturale in faggete sottoposte a interventi selvicolturali differenziati nel comune di Seren del Grappa
CURTO, KEVIN
2025/2026
Abstract
In 2013, the Municipality of Seren del Grappa launched a project aimed at reducing public energy expenditure through the construction of a 550 kW wood biomass heating plant, primarily supplied by municipal forests, with the objective of creating a short “forest-wood-energy” supply chain. However, a large proportion of the municipal beech stands, historically managed as coppice, are currently in a state of silvicultural abandonment, a condition that promotes their gradual transition to high forest, a management system that does not ensure a regular production of firewood. Within this context, the present study forms part of a long-term project initiated in collaboration with the University of Padua, aimed at assessing the evolution of both vegetative (agametic) and seed-origin (gametic) regeneration of beech within three permanent sample plots subjected in 2013 to different silvicultural treatments (Area A -coppicing; Area B-control; Area C-shelterwood cutting). The monitoring carried out in 2025 highlighted, in Area A, a strong sprouting response accompanied by a high stump mortality rate; the intense canopy opening also promoted abundant seed regeneration. Area B showed the lowest regeneration density, both vegetative and seed-origin, exhibiting a progressive decline. Area C, subjected to a less intensive intervention, presented intermediate conditions: lower stump mortality compared to Area A, but a weaker sprouting response and reduced seedling density, partly due to competition from young silver fir and Norway spruce individuals. The results confirm that different harvesting intensities significantly influence regeneration dynamics, providing useful insights to guide future forest management strategies in the Veneto Region aimed at restoring the productive function of abandoned beech stands and revitalizing the wood-energy supply chain, while contributing to the debate on the possible conversion of high forest beech stands back to coppice, which is currently prohibited under national legislation (Legislative Decree 34/2018, Art. 7, paragraph 7).| File | Dimensione | Formato | |
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https://hdl.handle.net/20.500.12608/105249