“BalSim”: A Carbon, Nitrogen and Greenhouse Gas Mass Balance Model for Pastures
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10451/45340 |
Resumo: | Animal production systems are increasingly required to co-produce meat products and other ecosystem services. Sown biodiverse pastures (SBP) were developed in Portugal as an improvement over semi-natural pastures (SNP). SBP increase yields and animal intake during grazing, are substantial carbon sinks, and the abundance of legumes in the mixtures provides plants with a biological source of nitrogen. However, the data available and the data demands of most models make integrated modelling of these effects difficult. Here, we developed “BalSim”, a mass balance approach for the estimation of carbon and nitrogen flows and the direct greenhouse gas (GHG) balance of the two production systems. Results show that, on average, the on-farm GHG balance is 2.6 and 0.8 t CO2e/ha.yr for SBP and SNP, respectively. Ignoring the effects of carbon sequestration, and taking into account only non-CO2 emissions, the systems are responsible for 17.0 and 16.3 kg CO2e/kg live weight.yr. The annual analysis showed that non-CO2 emissions were highest in a drought year due to decreased yield and stocking rate. We also showed through scenario analysis that matching the grazing level to the yield is crucial to minimize emissions and ensure reduced feed supplementation while maintaining high soil carbon stocks. |
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“BalSim”: A Carbon, Nitrogen and Greenhouse Gas Mass Balance Model for PasturesLivestock production; Extensive meat production; GlobalWarming Potential; Nutrient cycles; Modelling; Biodiversity; Cleaner production; Farmer advisory; Industrial EcologyAnimal production systems are increasingly required to co-produce meat products and other ecosystem services. Sown biodiverse pastures (SBP) were developed in Portugal as an improvement over semi-natural pastures (SNP). SBP increase yields and animal intake during grazing, are substantial carbon sinks, and the abundance of legumes in the mixtures provides plants with a biological source of nitrogen. However, the data available and the data demands of most models make integrated modelling of these effects difficult. Here, we developed “BalSim”, a mass balance approach for the estimation of carbon and nitrogen flows and the direct greenhouse gas (GHG) balance of the two production systems. Results show that, on average, the on-farm GHG balance is 2.6 and 0.8 t CO2e/ha.yr for SBP and SNP, respectively. Ignoring the effects of carbon sequestration, and taking into account only non-CO2 emissions, the systems are responsible for 17.0 and 16.3 kg CO2e/kg live weight.yr. The annual analysis showed that non-CO2 emissions were highest in a drought year due to decreased yield and stocking rate. We also showed through scenario analysis that matching the grazing level to the yield is crucial to minimize emissions and ensure reduced feed supplementation while maintaining high soil carbon stocks.MDPIRepositório da Universidade de LisboaTeixeira, RicardoBarão, LúciaMorais, TiagoDomingos, Tiago2020-12-15T12:13:59Z20182018-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10451/45340engTeixeira, R.F.; Barão, L.; Morais, T.G.; Domingos, T. “BalSim”: A Carbon, Nitrogen and Greenhouse Gas Mass Balance Model for Pastures. Sustainability 2019, 11, 53.10.3390/su11010053info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-11-08T16:47:05Zoai:repositorio.ul.pt:10451/45340Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T21:57:48.601098Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
“BalSim”: A Carbon, Nitrogen and Greenhouse Gas Mass Balance Model for Pastures |
title |
“BalSim”: A Carbon, Nitrogen and Greenhouse Gas Mass Balance Model for Pastures |
spellingShingle |
“BalSim”: A Carbon, Nitrogen and Greenhouse Gas Mass Balance Model for Pastures Teixeira, Ricardo Livestock production; Extensive meat production; GlobalWarming Potential; Nutrient cycles; Modelling; Biodiversity; Cleaner production; Farmer advisory; Industrial Ecology |
title_short |
“BalSim”: A Carbon, Nitrogen and Greenhouse Gas Mass Balance Model for Pastures |
title_full |
“BalSim”: A Carbon, Nitrogen and Greenhouse Gas Mass Balance Model for Pastures |
title_fullStr |
“BalSim”: A Carbon, Nitrogen and Greenhouse Gas Mass Balance Model for Pastures |
title_full_unstemmed |
“BalSim”: A Carbon, Nitrogen and Greenhouse Gas Mass Balance Model for Pastures |
title_sort |
“BalSim”: A Carbon, Nitrogen and Greenhouse Gas Mass Balance Model for Pastures |
author |
Teixeira, Ricardo |
author_facet |
Teixeira, Ricardo Barão, Lúcia Morais, Tiago Domingos, Tiago |
author_role |
author |
author2 |
Barão, Lúcia Morais, Tiago Domingos, Tiago |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Repositório da Universidade de Lisboa |
dc.contributor.author.fl_str_mv |
Teixeira, Ricardo Barão, Lúcia Morais, Tiago Domingos, Tiago |
dc.subject.por.fl_str_mv |
Livestock production; Extensive meat production; GlobalWarming Potential; Nutrient cycles; Modelling; Biodiversity; Cleaner production; Farmer advisory; Industrial Ecology |
topic |
Livestock production; Extensive meat production; GlobalWarming Potential; Nutrient cycles; Modelling; Biodiversity; Cleaner production; Farmer advisory; Industrial Ecology |
description |
Animal production systems are increasingly required to co-produce meat products and other ecosystem services. Sown biodiverse pastures (SBP) were developed in Portugal as an improvement over semi-natural pastures (SNP). SBP increase yields and animal intake during grazing, are substantial carbon sinks, and the abundance of legumes in the mixtures provides plants with a biological source of nitrogen. However, the data available and the data demands of most models make integrated modelling of these effects difficult. Here, we developed “BalSim”, a mass balance approach for the estimation of carbon and nitrogen flows and the direct greenhouse gas (GHG) balance of the two production systems. Results show that, on average, the on-farm GHG balance is 2.6 and 0.8 t CO2e/ha.yr for SBP and SNP, respectively. Ignoring the effects of carbon sequestration, and taking into account only non-CO2 emissions, the systems are responsible for 17.0 and 16.3 kg CO2e/kg live weight.yr. The annual analysis showed that non-CO2 emissions were highest in a drought year due to decreased yield and stocking rate. We also showed through scenario analysis that matching the grazing level to the yield is crucial to minimize emissions and ensure reduced feed supplementation while maintaining high soil carbon stocks. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018 2018-01-01T00:00:00Z 2020-12-15T12:13:59Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10451/45340 |
url |
http://hdl.handle.net/10451/45340 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Teixeira, R.F.; Barão, L.; Morais, T.G.; Domingos, T. “BalSim”: A Carbon, Nitrogen and Greenhouse Gas Mass Balance Model for Pastures. Sustainability 2019, 11, 53. 10.3390/su11010053 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
MDPI |
publisher.none.fl_str_mv |
MDPI |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
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1799134522635190272 |