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Registro Completo |
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
04/04/2022 |
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Data da última atualização: |
04/04/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
AMADORI, C.; DIECKOW, J.; ZANATTA, J. A.; MORAES, A. de; ZAMAN, M.; BAYER, C. |
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Afiliação: |
CAROLINE AMADORI, UFPR; JEFERSON DIECKOW, UFPR; JOSILEIA ACORDI ZANATTA, CNPF; ANIBAL DE MORAES, UFPR; MOHAMMAD ZAMAN, International Atomic Energy Agency; CIMÉLIO BAYER, UFRGS. |
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Título: |
Nitrous oxide and methane emissions from soil under integrated farming systems in southern Brazil. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Science of the Total Environment, v. 828, 154555, July 2022. 11 p. |
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DOI: |
https://doi.org/10.1016/j.scitotenv.2022.154555 |
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Idioma: |
Inglês |
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Conteúdo: |
This study aimed at evaluating soil nitrous oxide (N2O) and methane (CH4) emissions from integrated farming systems. Soil N2O and CH4 fluxes were assessed in a subtropical Cambisol in southern Brazil, using manual static chambers, over two years, in five farming systems (cropland, livestock, integrated crop-livestock, integrated livestock-forestry, and integrated crop-livestock-forestry). The study was conducted in four growing seasons: summer-1, winter-1, summer-2, winter-2. Integrated farming systems had lower soil N2O emissions than livestock. The observed reduction was possibly due to lower water-filled pore space (WFPS) in soils under integrated systems (average 59.5?64.7%, vs 70.4% in livestock) as indicated by correlation (r = 0.74). Cropland, including cover-crops and maize, also had lower N2O emission (by 40%) relative to livestock, of levels similar to those observed in integrated systems. Methane was consumed in soil, but it was not affected by farming systems, and offset only ~1.4% of the N2O emissions. In the rainiest season of summer-2, the soil had the highest WFPS (on average 71.4%) and thus the highest N2O emission (on average 9.79 kg N2O-N ha−1 season−1) and the lowest CH4 consumption (on average − 0.40 kg CH4-C ha−1 season−1); while the opposite trend occurred in the driest season of winter-2 (on average 57.3% WFPS; 0.64 kg N2O-N ha−1 season−1 and -0.90 kg CH4-C ha−1 season−1). Integrated farming systems including crop-livestock, livestock-forestry and crop-livestock-forestry reduced soil N2O emissions relative to sole livestock by 27?40%, but did not affect CH4 emissions. Seasonal variations of precipitation, and therefore WFPS were driving factors of the N2O and CH4 emissions. Overall, integrated farming systems show the potential to mitigate soil N2O emission compared to livestock system. MenosThis study aimed at evaluating soil nitrous oxide (N2O) and methane (CH4) emissions from integrated farming systems. Soil N2O and CH4 fluxes were assessed in a subtropical Cambisol in southern Brazil, using manual static chambers, over two years, in five farming systems (cropland, livestock, integrated crop-livestock, integrated livestock-forestry, and integrated crop-livestock-forestry). The study was conducted in four growing seasons: summer-1, winter-1, summer-2, winter-2. Integrated farming systems had lower soil N2O emissions than livestock. The observed reduction was possibly due to lower water-filled pore space (WFPS) in soils under integrated systems (average 59.5?64.7%, vs 70.4% in livestock) as indicated by correlation (r = 0.74). Cropland, including cover-crops and maize, also had lower N2O emission (by 40%) relative to livestock, of levels similar to those observed in integrated systems. Methane was consumed in soil, but it was not affected by farming systems, and offset only ~1.4% of the N2O emissions. In the rainiest season of summer-2, the soil had the highest WFPS (on average 71.4%) and thus the highest N2O emission (on average 9.79 kg N2O-N ha−1 season−1) and the lowest CH4 consumption (on average − 0.40 kg CH4-C ha−1 season−1); while the opposite trend occurred in the driest season of winter-2 (on average 57.3% WFPS; 0.64 kg N2O-N ha−1 season−1 and -0.90 kg CH4-C ha−1 season−1). Integrated farming system... Mostrar Tudo |
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Palavras-Chave: |
Grazing rainfall; Integrated crop-livestock system; Non-CO2; WFPS. |
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Thesagro: |
Eucalipto. |
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Thesaurus Nal: |
Eucalyptus. |
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Categoria do assunto: |
A Sistemas de Cultivo |
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Marc: |
LEADER 02694naa a2200265 a 4500
001 2141776
005 2022-04-04
008 2022 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.scitotenv.2022.154555$2DOI
100 1 $aAMADORI, C.
245 $aNitrous oxide and methane emissions from soil under integrated farming systems in southern Brazil.$h[electronic resource]
260 $c2022
520 $aThis study aimed at evaluating soil nitrous oxide (N2O) and methane (CH4) emissions from integrated farming systems. Soil N2O and CH4 fluxes were assessed in a subtropical Cambisol in southern Brazil, using manual static chambers, over two years, in five farming systems (cropland, livestock, integrated crop-livestock, integrated livestock-forestry, and integrated crop-livestock-forestry). The study was conducted in four growing seasons: summer-1, winter-1, summer-2, winter-2. Integrated farming systems had lower soil N2O emissions than livestock. The observed reduction was possibly due to lower water-filled pore space (WFPS) in soils under integrated systems (average 59.5?64.7%, vs 70.4% in livestock) as indicated by correlation (r = 0.74). Cropland, including cover-crops and maize, also had lower N2O emission (by 40%) relative to livestock, of levels similar to those observed in integrated systems. Methane was consumed in soil, but it was not affected by farming systems, and offset only ~1.4% of the N2O emissions. In the rainiest season of summer-2, the soil had the highest WFPS (on average 71.4%) and thus the highest N2O emission (on average 9.79 kg N2O-N ha−1 season−1) and the lowest CH4 consumption (on average − 0.40 kg CH4-C ha−1 season−1); while the opposite trend occurred in the driest season of winter-2 (on average 57.3% WFPS; 0.64 kg N2O-N ha−1 season−1 and -0.90 kg CH4-C ha−1 season−1). Integrated farming systems including crop-livestock, livestock-forestry and crop-livestock-forestry reduced soil N2O emissions relative to sole livestock by 27?40%, but did not affect CH4 emissions. Seasonal variations of precipitation, and therefore WFPS were driving factors of the N2O and CH4 emissions. Overall, integrated farming systems show the potential to mitigate soil N2O emission compared to livestock system.
650 $aEucalyptus
650 $aEucalipto
653 $aGrazing rainfall
653 $aIntegrated crop-livestock system
653 $aNon-CO2
653 $aWFPS
700 1 $aDIECKOW, J.
700 1 $aZANATTA, J. A.
700 1 $aMORAES, A. de
700 1 $aZAMAN, M.
700 1 $aBAYER, C.
773 $tScience of the Total Environment$gv. 828, 154555, July 2022. 11 p.
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Registro original: |
Embrapa Florestas (CNPF) |
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| Registros recuperados : 6 | |
| 1. |  | SANTOS, L. P.; BRAGANÇA, S. M.; SILVA, E. de B.; FREGONEZI, F. R. Dinâmica de nutrientes e atributos químicos do perfil do solo em função da aplicação de gesso agrícola na cultura de guaranazeiro em formação no Estado do Amazonas. In: REUNIÃO BRASILEIRA DE FERTILIDADE DO SOLO E NUTRIÇÃO DE PLANTAS, 29.; REUNIÃO BRASILEIRA SOBRE MICORRIZAS, 13.; SIMPÓSIO BRASILEIRO DE MICROBIOLOGIA DO SOLO, 11.; REUNIÃO BRASILEIRA DE BIOLOGIA DO SOLO, 8., 2010, Guarapari. Fontes de nutrientes e produção agrícola: modelando o futuro: anais. Viçosa, MG: Sociedade Brasileira de Ciência do Solo, 2010.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Amazônia Ocidental. |
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| 5. | | SANTOS, L. P.; BRAGANÇA, S. M.; SILVA, E. B.; MARTINS, G. C.; FONTES, J. R. A.; FREGONEZI, F. R. Dinâmica de nutrientes e atributos químicos do perfil do solo em função da aplicação de calcário na cultura de guaranazeiro em formação no Estado do Amazonas. In: CONGRESSO BRASILEIRO DE CIÊNCIA DO SOLO, 32., 2009, Fortaleza. O solo e a produção de bioenergia: perspectivas e desafios. [Viçosa, MG]: SBCS; Fortaleza: UFC, 2009. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso / Nota Técnica |
| Biblioteca(s): Embrapa Amazônia Ocidental. |
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| 6. | | SANTOS, L. P.; MARTINS, G. C.; FONTES, J. R. A.; MORAIS, R. R. de; GARCIA, M. V. B.; NASCIMENTO FILHO, F. J. do; FREGONEZI, F. R.; RIBEIRO, J. de R. C. Crescimento e acúmulo de nutrientes e resposta diferencial de genótipos de guaranazeiros à calagem, gessagem e adubação em solos de diferentes texturas do Estado do Amazonas. In: REUNIÃO TÉCNICA DE PESQUISA E DESENVOLVIMENTO DA EMBRAPA AMAZÔNIA OCIDENTAL, 4., 2009, Manaus. Anais... Manaus: Embrapa Amazônia Ocidental, 2009. p. 47-50. (Embrapa Amazônia Ocidental. Documentos, 73).| Tipo: Artigo em Anais de Congresso / Nota Técnica |
| Biblioteca(s): Embrapa Amazônia Ocidental. |
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| Registros recuperados : 6 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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