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 | Acesso ao texto completo restrito à biblioteca da Embrapa Meio Ambiente. Para informações adicionais entre em contato com cnpma.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
14/04/2021 |
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Data da última atualização: |
16/04/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
MONTELES, J. S.; GERHARD, P.; FERREIRA, A.; SONODA, K. C. |
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Afiliação: |
JOSINETE SAMPAIO MONTELES; PEDRO GERHARD, CNPMA; ANDERSON FERREIRA, UFGD; KATHIA CRISTHINA SONODA, CNPMA. |
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Título: |
Agriculture impacts benthic insects on multiple scales in the Eastern Amazon. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Biological Conservation, v. 255, article 108998, 2021. |
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Páginas: |
1-12 |
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ISSN: |
0006-3207 |
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DOI: |
https://doi.org/10.1016/j.biocon.2021.108998 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: Brazilian Amazon is facing ongoing threat due to deforestation. Eastern Amazon (EA), however, is an old colonization front, where rural landscape is dominated by secondary vegetation (capoeira) and cattle ranching. The effects of land-use land-cover (LULC) at catchment, riparian and local scales upon stream insect assemblages (SIA) were analyzed from 17 catchments. Agriculture development, daily variation in temperature, dissolved oxygen and sodium concentrations explained variations of 33.7% in taxa composition and 58.5% in functional feeding groups. Partial Least Squares Regression revealed complex effects on SIA, pointing to interactions of LULC at all scales, but stronger at the riparian. Capoeira placed varied effects upon SIA, positive and negative and weaker than agriculture or forest cover. In order to warrant optimal conditions to the stream biota, indicating a sustained flow of ecosystem services, both forest fragments and capoeira patches should be adequately managed, especially along and closer to the aquatic habitat network. |
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Palavras-Chave: |
Land development; Riparian deforestation. |
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Thesagro: |
Agricultura; Ambiente Bêntico; Desmatamento; Floresta Secundaria; Impacto Ambiental; Inseto. |
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Thesaurus Nal: |
Agriculture; Aquatic insects; Aquatic invertebrates; Benthic organisms; Chironomidae; Environmental impact; Riparian forests. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02130naa a2200373 a 4500
001 2131267
005 2021-04-16
008 2021 bl uuuu u00u1 u #d
022 $a0006-3207
024 7 $ahttps://doi.org/10.1016/j.biocon.2021.108998$2DOI
100 1 $aMONTELES, J. S.
245 $aAgriculture impacts benthic insects on multiple scales in the Eastern Amazon.$h[electronic resource]
260 $c2021
300 $a1-12
520 $aAbstract: Brazilian Amazon is facing ongoing threat due to deforestation. Eastern Amazon (EA), however, is an old colonization front, where rural landscape is dominated by secondary vegetation (capoeira) and cattle ranching. The effects of land-use land-cover (LULC) at catchment, riparian and local scales upon stream insect assemblages (SIA) were analyzed from 17 catchments. Agriculture development, daily variation in temperature, dissolved oxygen and sodium concentrations explained variations of 33.7% in taxa composition and 58.5% in functional feeding groups. Partial Least Squares Regression revealed complex effects on SIA, pointing to interactions of LULC at all scales, but stronger at the riparian. Capoeira placed varied effects upon SIA, positive and negative and weaker than agriculture or forest cover. In order to warrant optimal conditions to the stream biota, indicating a sustained flow of ecosystem services, both forest fragments and capoeira patches should be adequately managed, especially along and closer to the aquatic habitat network.
650 $aAgriculture
650 $aAquatic insects
650 $aAquatic invertebrates
650 $aBenthic organisms
650 $aChironomidae
650 $aEnvironmental impact
650 $aRiparian forests
650 $aAgricultura
650 $aAmbiente Bêntico
650 $aDesmatamento
650 $aFloresta Secundaria
650 $aImpacto Ambiental
650 $aInseto
653 $aLand development
653 $aRiparian deforestation
700 1 $aGERHARD, P.
700 1 $aFERREIRA, A.
700 1 $aSONODA, K. C.
773 $tBiological Conservation$gv. 255, article 108998, 2021.
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Registro original: |
Embrapa Meio Ambiente (CNPMA) |
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Biblioteca |
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Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
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Registro Completo
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
17/08/2012 |
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Data da última atualização: |
20/02/2015 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
BAYER, C.; GOMES, J.; VIEIRA, F. C. B; ZANATTA, J. A.; PICCOLO, M. de C.; DIECKOW, J. |
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Afiliação: |
CIMÉLIO BAYER, UFRGS; JULIANA GOMES, UFRGS; FREDERICO COSTA BEBER VIEIRA, UNIVERSIDADE FEDERAL DO PAMPA; JOSILEIA ACORDI ZANATTA, CNPF; MARISA DE CÁSSIA PICOLLO, CENTRO DE ENERGIA NUCLEAR DA AGRICULTURA; JEFERSON DIECKOW, UFPR. |
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Título: |
Methane emission from soil under long-term no-till cropping systems. |
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Ano de publicação: |
2012 |
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Fonte/Imprenta: |
Soil & Tillage Research, v. 124, p. 1-7, 2012. |
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Idioma: |
Inglês |
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Conteúdo: |
Methane (CH4) emission from agricultural soils increases dramatically as a result of deleterious effect of soil disturbance and nitrogen fertilization on methanotrophic organisms; however, few studies have attempted to evaluate the potential of long-term conservation management systems to mitigate CH4 emissions in tropical and subtropical soils. This study aimed to evaluate the long-term effect (>19 years) of no-till grass- and legume-based cropping systems on annual soil CH4 fluxes in a formerly degraded Acrisol in Southern Brazil. Air sampling was carried out using static chambers and CH4 analysis by gas chromatography. Analysis of historical data set of the experiment evidenced a remarkable effect of high C- and N-input cropping systems on the improvement of biological, chemical, and physical characteristics of this no-tilled soil. Soil CH4 fluxes, which represent a net balance between consumption () and production (+) of CH4 in soil, varied from 40 2 to +62 78 mg C m2 h1. Mean weighted contents of ammonium (NH4+–N) and dissolved organic carbon (DOC) in soil had a positive relationship with accumulated soil CH4 fluxes in the post-management period (r2 = 0.95, p = 0.05), suggesting an additive effect of these nutrients in suppressing CH4 oxidation and stimulating methanogenesis, respectively, in legumebased cropping systems with high biomass input. Annual CH4 fluxes ranged from 50 610 to +994 105 g C ha1, which were inversely related to annual biomass-C input (r2 = 0.99, p = 0.003), with the exception of the cropping system containing pigeon pea, a summer legume that had the highest biologically fixed N input (>300 kg ha1 yr1). Our results evidenced a small effect of conservation management systems on decreasing CH4 emissions from soil, despite their significant effect restoring soil quality. We hypothesized that soil CH4 uptake strength has been off-set by an injurious effect of biologically fixed N in legume-based cropping systems on soil methanotrophic microbiota, and by the methanogenesis increase as a result of the O2 depletion in niches of high biological activity in the surface layer of the no-tillage soil. MenosMethane (CH4) emission from agricultural soils increases dramatically as a result of deleterious effect of soil disturbance and nitrogen fertilization on methanotrophic organisms; however, few studies have attempted to evaluate the potential of long-term conservation management systems to mitigate CH4 emissions in tropical and subtropical soils. This study aimed to evaluate the long-term effect (>19 years) of no-till grass- and legume-based cropping systems on annual soil CH4 fluxes in a formerly degraded Acrisol in Southern Brazil. Air sampling was carried out using static chambers and CH4 analysis by gas chromatography. Analysis of historical data set of the experiment evidenced a remarkable effect of high C- and N-input cropping systems on the improvement of biological, chemical, and physical characteristics of this no-tilled soil. Soil CH4 fluxes, which represent a net balance between consumption () and production (+) of CH4 in soil, varied from 40 2 to +62 78 mg C m2 h1. Mean weighted contents of ammonium (NH4+–N) and dissolved organic carbon (DOC) in soil had a positive relationship with accumulated soil CH4 fluxes in the post-management period (r2 = 0.95, p = 0.05), suggesting an additive effect of these nutrients in suppressing CH4 oxidation and stimulating methanogenesis, respectively, in legumebased cropping systems with high biomass input. Annual CH4 fluxes ranged from 50 610 to +994 105 g C ha1, which were inversely related to annual biomass-C input (r2 = 0.99, p... Mostrar Tudo |
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Palavras-Chave: |
Emissão de gás. |
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Thesagro: |
Agricultura; Metano. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/64094/1/Josileia-STR-Methane.pdf
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Marc: |
LEADER 02751naa a2200217 a 4500
001 1931501
005 2015-02-20
008 2012 bl uuuu u00u1 u #d
100 1 $aBAYER, C.
245 $aMethane emission from soil under long-term no-till cropping systems.$h[electronic resource]
260 $c2012
520 $aMethane (CH4) emission from agricultural soils increases dramatically as a result of deleterious effect of soil disturbance and nitrogen fertilization on methanotrophic organisms; however, few studies have attempted to evaluate the potential of long-term conservation management systems to mitigate CH4 emissions in tropical and subtropical soils. This study aimed to evaluate the long-term effect (>19 years) of no-till grass- and legume-based cropping systems on annual soil CH4 fluxes in a formerly degraded Acrisol in Southern Brazil. Air sampling was carried out using static chambers and CH4 analysis by gas chromatography. Analysis of historical data set of the experiment evidenced a remarkable effect of high C- and N-input cropping systems on the improvement of biological, chemical, and physical characteristics of this no-tilled soil. Soil CH4 fluxes, which represent a net balance between consumption () and production (+) of CH4 in soil, varied from 40 2 to +62 78 mg C m2 h1. Mean weighted contents of ammonium (NH4+–N) and dissolved organic carbon (DOC) in soil had a positive relationship with accumulated soil CH4 fluxes in the post-management period (r2 = 0.95, p = 0.05), suggesting an additive effect of these nutrients in suppressing CH4 oxidation and stimulating methanogenesis, respectively, in legumebased cropping systems with high biomass input. Annual CH4 fluxes ranged from 50 610 to +994 105 g C ha1, which were inversely related to annual biomass-C input (r2 = 0.99, p = 0.003), with the exception of the cropping system containing pigeon pea, a summer legume that had the highest biologically fixed N input (>300 kg ha1 yr1). Our results evidenced a small effect of conservation management systems on decreasing CH4 emissions from soil, despite their significant effect restoring soil quality. We hypothesized that soil CH4 uptake strength has been off-set by an injurious effect of biologically fixed N in legume-based cropping systems on soil methanotrophic microbiota, and by the methanogenesis increase as a result of the O2 depletion in niches of high biological activity in the surface layer of the no-tillage soil.
650 $aAgricultura
650 $aMetano
653 $aEmissão de gás
700 1 $aGOMES, J.
700 1 $aVIEIRA, F. C. B
700 1 $aZANATTA, J. A.
700 1 $aPICCOLO, M. de C.
700 1 $aDIECKOW, J.
773 $tSoil & Tillage Research$gv. 124, p. 1-7, 2012.
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