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Registro Completo |
Biblioteca(s): |
Embrapa Agrossilvipastoril; Embrapa Solos. |
Data corrente: |
04/06/2020 |
Data da última atualização: |
09/07/2020 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
NASCIMENTO, A. F. do; RODRIGUES, R. de A. R.; SILVEIRA, J. G. da; SILVA, J. J. N. da; DANIEL, V. de C.; SEGATTO, E. R. |
Afiliação: |
ALEXANDRE FERREIRA DO NASCIMENTO, CPAMT; RENATO DE ARAGAO RIBEIRO RODRIGUES, CNPS; JULIA GRAZIELA DA SILVEIRA, UFV; JACQUELINE JESUS NOGUEIRA DA SILVA, UFF; VAGNER DE CARVALHO DANIEL, UFMT; EDUARDO RECKERS SEGATTO, UFMT. |
Título: |
Nitrous oxide emissions from a tropical Oxisol under monocultures and an integrated system in the Southern Amazon - Brazil. |
Ano de publicação: |
2020 |
Fonte/Imprenta: |
Revista Brasileira de Ciência do Solo, v. 44, e0190123, 2020. |
ISSN: |
1806-9657 |
DOI: |
https://doi.org/10.36783/18069657rbcs2019 |
Idioma: |
Inglês |
Conteúdo: |
Although agriculture and livestock systems represent important sources of N2O from the soil, they may also aid in emissions mitigation, mainly when integrated systems are taken into account, such as crop-livestock-forest, for food production. This work assessed the soil N2O emissions from a tropical Oxisol under row-crop, livestock, forest monocultures, and an integrated crop-livestock-forest system in the Southern Amazon - Brazil. Soil N2O emissions were measured using static chambers from November 2014 to October 2016 in four soil use systems [row-crop, livestock, forest, and integrated crop-livestock-forest (CLF)], and in a reference area under native forest fragment. For the whole period, the average of soil N2O fluxes was 16.9, 12.2, and 15.4 ug N2O-N m-2 h-1, to row-crop, livestock, and CLF systems, respectively, all with a similar average among them. The lowest fluxes were observed in the forest system and native forest fragment, with average fluxes of 4.0 and 6.3 ug N2O-N m-2 h-1, respectively, both lower than the agricultural systems. The largest soil N2O fluxes were observed throughout the rainy seasons in the row-crop, livestock, and CLF, mostly after N-fertilizer application to the soil surface or in the planted row. As a consequence, the cumulative emissions were greater in row-crop, livestock, and CLF systems, which in the averages of two cycles emitted respectively 1.40, 1.15, and 1.27 kg N2O-N ha-1 yr-1, all different of the forest system and native forest fragment (0.33 and 0.52 kg N2O-N ha-1 yr-1, respectively). Nitrogen fertilization and soil moisture influenced soil N2O emissions of all systems assessed in the Southern Amazon. The N2O emissions took place after both factors were met, corroborating the hole-in-the-pipe model. Even with more soil use intensification, once in the same area there were three cultures in succession during a year and perennial trees, CLF did not lead to greater N2O emissions from the soil than row-crop and livestock. Thus, CLF represents a good option for N2O mitigation for the edaphic and climatic conditions of the Southern Amazon. MenosAlthough agriculture and livestock systems represent important sources of N2O from the soil, they may also aid in emissions mitigation, mainly when integrated systems are taken into account, such as crop-livestock-forest, for food production. This work assessed the soil N2O emissions from a tropical Oxisol under row-crop, livestock, forest monocultures, and an integrated crop-livestock-forest system in the Southern Amazon - Brazil. Soil N2O emissions were measured using static chambers from November 2014 to October 2016 in four soil use systems [row-crop, livestock, forest, and integrated crop-livestock-forest (CLF)], and in a reference area under native forest fragment. For the whole period, the average of soil N2O fluxes was 16.9, 12.2, and 15.4 ug N2O-N m-2 h-1, to row-crop, livestock, and CLF systems, respectively, all with a similar average among them. The lowest fluxes were observed in the forest system and native forest fragment, with average fluxes of 4.0 and 6.3 ug N2O-N m-2 h-1, respectively, both lower than the agricultural systems. The largest soil N2O fluxes were observed throughout the rainy seasons in the row-crop, livestock, and CLF, mostly after N-fertilizer application to the soil surface or in the planted row. As a consequence, the cumulative emissions were greater in row-crop, livestock, and CLF systems, which in the averages of two cycles emitted respectively 1.40, 1.15, and 1.27 kg N2O-N ha-1 yr-1, all different of the forest system and native forest fr... Mostrar Tudo |
Palavras-Chave: |
Mato Grosso; Mitigação; Sinop-MT. |
Thesagro: |
Aquecimento; Efeito Estufa; Gás; Latossolo; Oxisol; Solo Florestal. |
Thesaurus Nal: |
Forest soils; Global warming; Greenhouse effect; Greenhouse gases; Oxisols. |
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/214512/1/2020-cpamt-afn-nitrous-emissions-tropical-oxisol-monocultre-integrated-system-sourthen-amazon-brazil.pdf
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Marc: |
LEADER 03207naa a2200373 a 4500 001 2123759 005 2020-07-09 008 2020 bl uuuu u00u1 u #d 022 $a1806-9657 024 7 $ahttps://doi.org/10.36783/18069657rbcs2019$2DOI 100 1 $aNASCIMENTO, A. F. do 245 $aNitrous oxide emissions from a tropical Oxisol under monocultures and an integrated system in the Southern Amazon - Brazil.$h[electronic resource] 260 $c2020 520 $aAlthough agriculture and livestock systems represent important sources of N2O from the soil, they may also aid in emissions mitigation, mainly when integrated systems are taken into account, such as crop-livestock-forest, for food production. This work assessed the soil N2O emissions from a tropical Oxisol under row-crop, livestock, forest monocultures, and an integrated crop-livestock-forest system in the Southern Amazon - Brazil. Soil N2O emissions were measured using static chambers from November 2014 to October 2016 in four soil use systems [row-crop, livestock, forest, and integrated crop-livestock-forest (CLF)], and in a reference area under native forest fragment. For the whole period, the average of soil N2O fluxes was 16.9, 12.2, and 15.4 ug N2O-N m-2 h-1, to row-crop, livestock, and CLF systems, respectively, all with a similar average among them. The lowest fluxes were observed in the forest system and native forest fragment, with average fluxes of 4.0 and 6.3 ug N2O-N m-2 h-1, respectively, both lower than the agricultural systems. The largest soil N2O fluxes were observed throughout the rainy seasons in the row-crop, livestock, and CLF, mostly after N-fertilizer application to the soil surface or in the planted row. As a consequence, the cumulative emissions were greater in row-crop, livestock, and CLF systems, which in the averages of two cycles emitted respectively 1.40, 1.15, and 1.27 kg N2O-N ha-1 yr-1, all different of the forest system and native forest fragment (0.33 and 0.52 kg N2O-N ha-1 yr-1, respectively). Nitrogen fertilization and soil moisture influenced soil N2O emissions of all systems assessed in the Southern Amazon. The N2O emissions took place after both factors were met, corroborating the hole-in-the-pipe model. Even with more soil use intensification, once in the same area there were three cultures in succession during a year and perennial trees, CLF did not lead to greater N2O emissions from the soil than row-crop and livestock. Thus, CLF represents a good option for N2O mitigation for the edaphic and climatic conditions of the Southern Amazon. 650 $aForest soils 650 $aGlobal warming 650 $aGreenhouse effect 650 $aGreenhouse gases 650 $aOxisols 650 $aAquecimento 650 $aEfeito Estufa 650 $aGás 650 $aLatossolo 650 $aOxisol 650 $aSolo Florestal 653 $aMato Grosso 653 $aMitigação 653 $aSinop-MT 700 1 $aRODRIGUES, R. de A. R. 700 1 $aSILVEIRA, J. G. da 700 1 $aSILVA, J. J. N. da 700 1 $aDANIEL, V. de C. 700 1 $aSEGATTO, E. R. 773 $tRevista Brasileira de Ciência do Solo$gv. 44, e0190123, 2020.
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Embrapa Agrossilvipastoril (CPAMT) |
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Registro Completo
Biblioteca(s): |
Embrapa Pecuária Sul. |
Data corrente: |
14/03/2008 |
Data da última atualização: |
29/11/2019 |
Tipo da produção científica: |
Artigo em Anais de Congresso |
Autoria: |
NESKE, M. Z.; MORAES, C. O. C.; BORBA, M. F. S.; LEMOS, E. |
Afiliação: |
Márcio Zamboni Neske, CPPSUL; Carlos Otávio Costa Moraes, CPPSUL; MARCOS FLAVIO SILVA BORBA, CPPSUL; Eli Lemos, CPPSUL. |
Título: |
Biodiversidade vegetal dos campos sulinos e a sustentabilidade da pecuária: uma avaliação de Bromus auleticus. |
Ano de publicação: |
2006 |
Fonte/Imprenta: |
Revista Brasileira de Agroecologia, Porto Alegre, v. 1, n. 1, p. 955-958, nov. 2006. |
Idioma: |
Português |
Conteúdo: |
No Rio Grande do Sul, a base da exploração econômica da região Sul do Estado ainda é o "campo natural". Um ecossistema que apesar de alta diversidade, com espécies de grande potencial forrageiro, tem sido preterido em prol de combinações de espécies exógenas. |
Thesagro: |
Biodiversidade; Campo; Pecuária. |
Categoria do assunto: |
-- |
Marc: |
LEADER 00859naa a2200193 a 4500 001 1218039 005 2019-11-29 008 2006 bl --- 0-- u #d 100 1 $aNESKE, M. Z. 245 $aBiodiversidade vegetal dos campos sulinos e a sustentabilidade da pecuária$buma avaliação de Bromus auleticus. 260 $c2006 520 $aNo Rio Grande do Sul, a base da exploração econômica da região Sul do Estado ainda é o "campo natural". Um ecossistema que apesar de alta diversidade, com espécies de grande potencial forrageiro, tem sido preterido em prol de combinações de espécies exógenas. 650 $aBiodiversidade 650 $aCampo 650 $aPecuária 700 1 $aMORAES, C. O. C. 700 1 $aBORBA, M. F. S. 700 1 $aLEMOS, E. 773 $tRevista Brasileira de Agroecologia, Porto Alegre$gv. 1, n. 1, p. 955-958, nov. 2006.
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