Percorrer por autor "Trindade, Henrique"
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- Evaluating the environmental impact of two beef production systems using life cycle assessmentPublication . Belo, Sara; Dias, Ana Cláudia; Feliciano, Manuel; Sousa, Fernando Ruivo de; Almeida, José Carlos; Trindade, Henrique; Arroja, LuísBeef production has been identified as an important source of environmental impacts. Life Cycle Assessment (LCA) has been applied worldwide to identify key processes/phases for environmental improvement in beef production. In this study, LCA is used to assess the environmental impacts of beef produced in two different production systems, namely extensive and intensive fattening. A “cradle-to-gate” approach is adopted and the functional unit is 1 kg of beef carcass weight at the farm gate. The results show that the environmental “hot spots” are related with feed production and on-farm related emissions in both systems. The results also suggest that the use of extensive production during the fattening stage has lower environmental impacts per kg of carcass. The largest differences between the two systems were found in marine eutrophication category.
- Evaluating the environmental impact of two beef production systems using life cycle assessmentPublication . Belo, Sara; Dias, Ana Cláudia; Feliciano, Manuel; Sousa, Fernando Ruivo de; Almeida, José Carlos; Trindade, Henrique; Arroja, LuísBeef production has been identified as an important source of environmental impacts. Life Cycle Assessment (LCA) has been applied worldwide to identify key processes/phases for environmental improvement in beef production. In this study, LCA is used to assess the environmental impacts of beef produced in two different production systems, namely extensive and intensive fattening. A “cradle-to-gate” approach is adopted and the functional unit is 1 kg of beef carcass weight at the farm gate. The results show that the environmental “hot spots” are related with feed production and on-farm related emissions in both systems. The results also suggest that the use of extensive production during the fattening stage has lower environmental impacts per kg of carcass. The largest differences between the two systems were found in marine eutrophication category.
- 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.