Browsing by Author "Figueiredo, Filipa"
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- Carbon footprint of apple and pear: orchards, storage and distributionPublication . Figueiredo, Filipa; Castanheira, Érica Geraldes; Feliciano, Manuel; Rodrigues, M.A.; Peres, António M.; Maia, Filipe; Ramos, António; Carneiro, João; Coroama, Vlad C.; Freire, FaustoApple and pear represent 51% of fresh fruit orchards in Portugal. This paper presents a life-cycle (LC) greenhouse gas (GHG) assessment (so-called carbon footprint) of 3 apple and 1 pear Portuguese production systems. An LC model and inventory were implemented, encompassing the farm stage (cultivation of fruit trees in orchards), storage and distribution (transport to retail). The functional unit considered in this study was 1 kg of distributed fruit (at retail). Four different LC inventories for orchards were implemented based on data collected from three farms. Inventory data from two storage companies were also gathered. The main results show that the GHG emissions of apple and pear ranged between 192 and 229 gCO2eq kgfruit-1. The GHG emissions (direct and indirect) from the cultivation phase ranged from 36% to 60% of total emissions. Fruit storage, which lasted for as much as 8-10 months, was also responsible for significant emissions due to high energy requirements.
- Carbon footprint of apple and pear: orchards, storage and distributionPublication . Figueiredo, Filipa; Castanheira, Érica Geraldes; Feliciano, Manuel; Rodrigues, M.A.; Peres, António M.; Maia, Filipe; Ramos, António; Carneiro, João; Coroama, Vlad C.; Freire, FaustoApple and pear represent 51% of fresh fruit orchards in Portugal. This paper presents a life-cycle (LC) greenhouse gas (GHG) assessment (so-called carbon footprint) of 3 apple and 1 pear Portuguese production systems. An LC model and inventory were implemented, encompassing the farm stage (cultivation of fruit trees in orchards), storage and distribution (transport to retail). The functional unit considered in this study was 1 kg of distributed fruit (at retail). Four different LC inventories for orchards were implemented based on data collected from three farms. Inventory data from two storage companies were also gathered. The main results show that the GHG emissions of apple and pear ranged between 192 and 229 gCO2eq kgfruit-1. The GHG emissions (direct and indirect) from the cultivation phase ranged from 36% to 60% of total emissions. Fruit storage, which lasted for as much as 8-10 months, was also responsible for significant emissions due to high energy requirements.
- Ecoeficiência e ecogestão no setor do azeite: uma avaliação do ciclo de vidaPublication . Figueiredo, Filipa; Maia, Filipe; Castanheira, Érica Geraldes; Pereira, J.A.; Ramalhosa, Elsa; Ramos, António Dinis; Gonçalves, Artur; Rodrigues, Filipe; Marques, Pedro; Gomes, Paulo; Peres, Fátima; Carneiro, João; Ferreira, António Dinis; Andrade, Luís Pinto de; Feliciano, Manuel; Freire, FaustoA União Europeia (UE) é a principal região produtora de azeite a níve11 mundial, com Portugal a ocupar a quarta posição, depois da Espanha, Itália e Grécia. O azeite tem, por isso, uma grande importância nos países da bacia Mediterrânica, não apenas devido à riqueza e herança cultural associada a este produto, mas também à sua enorme relevância na economia, na criação de emprego, no combate à desertificação e na manutenção das populações rurais. Apesar da importância económica e social deste produto alimentar de excecional valor nutricional, a sua produção envolve aspetos ambientais que não devem nem podem ser negligenciados. Ao longo das etapas da cadeia produtiva do azeite, desde o cu~tivo e da produção de azeitona até ao consumo final do produto, ocorrem consumos de recursos mássicos e energéticos, bem como a produção de resíduos gasososJ líquidos e sólidos com impactes e consequências negativas nos ecossistemas. Estes impactes variam ,em função das práticas e das técnicas utilizadas nas diferentes etapas, da região, do país, das características locais das explorações e ainda dos modelos de gestão. As condições sodoeconómicas, o clima ,e os aspetos culturais têm também influência nos impactes gerados.
- Life-cycle greenhouse gas assessment of Portuguese chestnutPublication . Rosa, Diana; Figueiredo, Filipa; Castanheira, Érica Geraldes; Feliciano, Manuel; Maia, Filipe; Santos, José M.R.C.A.; Silva, A.P.; Trindade, Henrique; Freire, FaustoThis paper presents a life-cycle greenhouse gas (GHG) assessment of various chestnut production systems in northern Portugal. Life-cycle models and inventories were implemented for three chestnut cultivation systems and two processing lines (fresh and frozen chestnut). The overall GHG intensity ranged between 0.4-2.7 (fresh) and 0.6-2.9 (frozen) kg CO2eq kg-1 harvested chestnut. The cultivation contribution to the overall GHG intensity varied considerably (from 0.36 to 2.69 kg CO2eq kg-1 harvested chestnut) mainly due to different yields and input requirements (diesel and fertilizers) among the three chestnut cultivation systems analysed. The GHG emissions associated with chestnut processing ranged between 0.05 (for fresh chestnut, mostly from propane consumption) and 0.23 kg CO2eq kg-1 harvested chestnut (for frozen chestnut, mainly due to electricity consumption). The results demonstrate the importance of cultivation management practices, in particular an efficient use of fertilizers in order to minimize the GHG intensity of Portuguese chestnut.
- Life-cycle greenhouse gas assessment of portuguese chestnutPublication . Rosa, Diana; Figueiredo, Filipa; Castanheira, Érica Geraldes; Feliciano, Manuel; Maia, Filipe; Santos, José M.R.C.A.; Silva, A.P.; Trindade, Henrique; Freire, FaustoThis paper presents a life-cycle greenhouse gas (GHG) assessment of various chestnut production systems in northern Portugal. Life-cycle models and inventories were implemented for three chestnut cultivation systems and two processing lines (fresh and frozen chestnut). The overall GHG intensity ranged between 0.4-2.7 (fresh) and 0.6-2.9 (frozen) kg CO2eq kg-1 harvested chestnut. The cultivation contribution to the overall GHG intensity varied considerably (from 0.36 to 2.69 kg CO2eq kg-1 harvested chestnut) mainly due to different yields and input requirements (diesel and fertilizers) among the three chestnut cultivation systems analysed. The GHG emissions associated with chestnut processing ranged between 0.05 (for fresh chestnut, mostly from propane consumption) and 0.23 kg CO2eq kg-1 harvested chestnut (for frozen chestnut, mainly due to electricity consumption). The results demonstrate the importance of cultivation management practices, in particular an efficient use of fertilizers in order to minimize the GHG intensity of Portuguese chestnut.
- Life-cycle greenhouse gas emissions of portuguese olive oilPublication . Figueiredo, Filipa; Coroama, Vlad C.; Ramos, António; Almeida, Arlindo; Ramalhosa, Elsa; Castanheira, Érica Geraldes; Peres, Fátima; Carneiro, João; Pereira, J.A.; Feliciano, Manuel; Gomes, Paulo; Marques, Pedro; Freire, FaustoThe main goal of this paper was to assess the greenhouse gas (GHG) intensity of olive oil production in Portugal. A life-cycle model and inventory were implemented for the entire production process, including a comprehensive analysis of olive cultivation, olive oil extraction, packaging, and distribution. Data originates from five differently-sized Portuguese olive growers and from a total of six olive oil mills, representing the three extraction processes in use: three-phase extraction, two-phase extraction, and traditional pressing. The results show that the GHG intensity lies in the range 1.8-8.2 kg CO2eq/liter and that the main contributors were fertilizers (production and field emissions). Efficient use of fertilizers thus seems to be a key factor for mitigating the GHG intensity of olive oil production.
- Life-cycle greenhouse gas emissions of portuguese olive oilPublication . Figueiredo, Filipa; Coroama, Vlad C.; Ramos, António; Almeida, Arlindo; Ramalhosa, Elsa; Castanheira, Érica Geraldes; Peres, Fátima; Carneiro, João; Pereira, J.A.; Feliciano, Manuel; Gomes, Paulo; Marques, Pedro; Freire, FaustoThe main goal of this paper was to assess the greenhouse gas (GHG) intensity of olive oil production in Portugal. A life-cycle model and inventory were implemented for the entire production process, including a comprehensive analysis of olive cultivation, olive oil extraction, packaging, and distribution. Data originates from five differently-sized Portuguese olive growers and from a total of six olive oil mills, representing the three extraction processes in use: three-phase extraction, two-phase extraction, and traditional pressing. The results show that the GHG intensity lies in the range 1.8-8.2 kg CO2eq/liter and that the main contributors were fertilizers (production and field emissions). Efficient use of fertilizers thus seems to be a key factor for mitigating the GHG intensity of olive oil production.