Use este identificador para citar ou linkar para este item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1016362
Unidade da Embrapa/Coleção:: Embrapa Meio Ambiente - Artigo em periódico indexado (ALICE)
Data do documento: 27-Mai-2015
Tipo do Material: Artigo em periódico indexado (ALICE)
Autoria: CAVALETT, O.
QUEIROZ, J. F. de
ORTEGA, E.
Informaçães Adicionais: Otávio Cavalett, LEIA - Departamento de Engenharia de Alimentos / FEA (College of Food Eng) - UNICAMP; JULIO FERRAZ DE QUEIROZ, CNPMA; Enrique Ortega, LEIA - Departamento de Engenharia de Alimentos / FEA (College of Food Eng) - UNICAMP.
Título: Emergy assessment of integrated production systems of grains, pig and fish in small farms in the South Brazil
Edição: 2006
Fonte/Imprenta: Ecological Modelling, v. 193, n. 3/4: p. 239-256, Mar. 2006.
Idioma: en
Notas: In Ortega, E. & Ulgiati, S. (editors): Proceedings of IV Biennial International Workshop “Advances in Energy Studies”. Unicamp, Campinas, SP, Brazil. June 16-19, 2004. Pages 239-256
Palavras-chave: Co-produção
Conteúdo: The present study uses emergy methodology to evaluate environmental aspects of integrated production systems of grains, pig and fish in small farms in the South region of Brazil. New emergy parameters that use partial renewability factor of each input were used to improve emergy accounting. These parameters were already applied to different case studies and are very appropriate for use in emergy assessment of integrated agricultural systems. The following indicators were calculated for the integrated production system of grains, pig and fish: transformity: 948,000 sej/J; renewability: 24%; emergy yield ratio: 1.44; emergy investment ratio: 2.28; environmental loading ratio: 3.13 and emergy exchange ratio: 6.8. These values were compared with results calculated for grains, pig and fish production subsystems working in a separated way. The results obtained signalize that an integrated system has better emergy efficiency, is more sustainable and is less stressful on the environment in comparison with separated production subsystems. The emergy indicators presented are discussed in the text and they will be useful in further work to assist the formulation of public policy, and also to recommend better management practices to farmers.
Thesagro: Contabilidade
NAL Thesaurus: Accounting
Environmental assessment
Emergy
Environmental sustainability
Ano de Publicação: 2006
Aparece nas coleções:Artigo em periódico indexado (CNPMA)

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