Publicação
Assessing Carbon Sequestration Potential in Chestnut Coppices Using the CO2Fix Model
| Resumo: | Through effective forest management, chestnut coppices (Castanea sativa Mill.) can play a crucial role in carbon sequestration, offering a sustainable approach to mitigate climate change. This study focuses on assessing the carbon sequestration potential of chestnut coppices in northeastern Portugal using the CO2FIX model, a tool designed to estimate carbon dynamics in forest ecosystems. Data from a field trial of chestnut coppices, located in an area known as Cimas de Mogadouro, Castelo Branco Parish, Mogadouro Municipality, where different densities of shoots per stump were tested, were used to calibrate and validate the model. The research objectives included developing parameters to calibrate the CO2FIX model, aiming for more accurate predictions of biomass and carbon stock in chestnut coppices, as well as evaluating the model estimates against observed data to refine silvicultural management practices to promote biomass growth, carbon sequestration capacity, and the sustainability of coppice systems. The results indicated that higher shoot densities, particularly in the three- shoots (T2) and five-shoots (T3) treatments, led to notable increases in biomass production and carbon storage compared to lower shoot densities. Both T2 and T3 exhibited strong values in terms of biomass and carbon accumulation; however, T2 proved to be more effective, showing greater gains in total volume and Current Annual Increment (CAI) over time. The trunk was identified as the main component of biomass and, consequently, of carbon storage across all treatments evaluated, underscoring its importance in managing carbon dynamics. These findings provide valuable insights for improving silvicultural management strategies aimed at optimizing carbon storage in chestnut coppices. Additionally, they underscore the role of effective silvicultural interventions in enhancing ecosystem services, contributing to the broader goals of climate change mitigation and sustainable resource use. Overall, this study highlights how targeted forest management practices can effectively increase carbon sequestration in chestnut coppices. Through this work, it was possible to simulate total biomass production and its components, as well as the corresponding carbon sequestration, for 42-year rotations in chestnut coppices. |
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| Autores principais: | El Baine, Chaimae |
| Assunto: | Castanea sativa Mill. Carbon stock Biomass Sustainable forest management |
| Ano: | 2024 |
| País: | Portugal |
| Tipo de documento: | dissertação de mestrado |
| Tipo de acesso: | acesso aberto |
| Instituição associada: | Instituto Politécnico de Bragança |
| Idioma: | inglês |
| Origem: | Biblioteca Digital do IPB |
| Resumo: | Through effective forest management, chestnut coppices (Castanea sativa Mill.) can play a crucial role in carbon sequestration, offering a sustainable approach to mitigate climate change. This study focuses on assessing the carbon sequestration potential of chestnut coppices in northeastern Portugal using the CO2FIX model, a tool designed to estimate carbon dynamics in forest ecosystems. Data from a field trial of chestnut coppices, located in an area known as Cimas de Mogadouro, Castelo Branco Parish, Mogadouro Municipality, where different densities of shoots per stump were tested, were used to calibrate and validate the model. The research objectives included developing parameters to calibrate the CO2FIX model, aiming for more accurate predictions of biomass and carbon stock in chestnut coppices, as well as evaluating the model estimates against observed data to refine silvicultural management practices to promote biomass growth, carbon sequestration capacity, and the sustainability of coppice systems. The results indicated that higher shoot densities, particularly in the three- shoots (T2) and five-shoots (T3) treatments, led to notable increases in biomass production and carbon storage compared to lower shoot densities. Both T2 and T3 exhibited strong values in terms of biomass and carbon accumulation; however, T2 proved to be more effective, showing greater gains in total volume and Current Annual Increment (CAI) over time. The trunk was identified as the main component of biomass and, consequently, of carbon storage across all treatments evaluated, underscoring its importance in managing carbon dynamics. These findings provide valuable insights for improving silvicultural management strategies aimed at optimizing carbon storage in chestnut coppices. Additionally, they underscore the role of effective silvicultural interventions in enhancing ecosystem services, contributing to the broader goals of climate change mitigation and sustainable resource use. Overall, this study highlights how targeted forest management practices can effectively increase carbon sequestration in chestnut coppices. Through this work, it was possible to simulate total biomass production and its components, as well as the corresponding carbon sequestration, for 42-year rotations in chestnut coppices. |
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