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| 1. |  | NUNES, C. L. R.; LUCAS, M.; LEITÃO, F. da L.; PEREZ, N. B.; TRENTIN, G. Sobressemeadura de azevém (Lolium multiflorum L.) em campo nativo após controle de Eragrostis plana Ness em pós-florescimento com a máquina Campo Limpo. In: CONGRESSO DE INICIAÇÃO CIENTÍFICA, 21.; MOSTRA CIENTÍFICA, 4., 2012, Pelotas. Anais... Pelotas: UFPelotas, 2012. 1 CD-ROM. CIC UFPelotas.| Biblioteca(s): Embrapa Pecuária Sul. |
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| 2. | | NUNES, C. L. R.; LEITÃO, F. da L.; PEREZ, N. B.; VOLK, L. B. da S.; SILVEIRA, M. C. T. da; SISTI, R. N. Efeito do período de diferimento da pastagem de inverno sobre a produtividade da soja em sistema de integração lavoura-pecuária na campanha gaúcha. In: SIMPÓSIO DE INICIAÇÃO CIENTÍFICA DA EMBRAPA PECUÁRIA SUL, 2., 2012, Bagé. Resumos... Bagé: Embrapa Pecuária Sul, 2012. p. 21.| Biblioteca(s): Embrapa Pecuária Sul. |
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Registro Completo
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Biblioteca(s): |
Embrapa Unidades Centrais. |
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Data corrente: |
16/05/2017 |
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Data da última atualização: |
16/05/2017 |
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Autoria: |
WINCKLER-SOSINSKI, L.T.; GUTHS, A. K.; GAYER, P. R. |
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Afiliação: |
LILIAN TEREZINHA WINCKLER SOSINSKI, CPACT; ANGÉLICA KONRADT GUTHS, UFPel; PÂMELA RODRIGUES GAYER, Instituto Federal Sul-rio-grandense. |
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Título: |
Benthic macroinvertebrates and degradation of phytomass as indicators of ecosystem functions in flooded rice cropping. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, Brasília, DF, v. 52, n. 4, p. 261-270, abr. 2017. |
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Idioma: |
Inglês |
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Notas: |
Título em português: Macroinvertebrados betônicos e degradação da fitomassa como indicadores de funções ecossistêmicas em arroz irrigado por inundação. |
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Conteúdo: |
The objective of this work was to evaluate the ecosystem functions of a natural wetland and of artificially flooded rice areas, managed under organic and conventional systems, by phytomass degradation and by the colonization of this material by benthic macroinvertebrates. The experiment was carried out in a natural wetland area, and in two flooded rice areas managed under organic and conventional systems. Twenty-five decomposition bags filled with 10 g of dry vegetation were installed in each site. At 14, 28, 42, 56, and 70 days after the beginning of the experiment, five bags from each site were collected. Macroinvertebrates were identified and classified by functional trophic group. The number of species of benthic macroinvertebrates increased: natural wetland > organic system > conventional system. The Chironomidae group was present in all areas, confirming its food plasticity and adaptability to different substrates and environmental stress situations. The Amphipoda group was present only in the artificially flooded rice area, and the Acari, only in the natural wetland. The diversity of species in the natural wetland area was higher than in the artificially flooded rice area. Nutrient cycling, provided by phytomass decomposition, is affected by the management system, and the delay in this process causes a reduction of the ecosystem functions in the conventional system. |
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Palavras-Chave: |
Ciclagem de nutriente; Degradação da biomassa; Serviço ecossistêmico; Solo de várzea. |
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Thesagro: |
Oryza Sativa; Planossolo. |
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Thesaurus NAL: |
Aqualfs; Biogeochemical cycles; Ecosystem services; Paddy soils. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/159901/1/Benthic-macroinvertebrates.pdf
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Marc: |
LEADER 02428naa a2200277 a 4500
001 2069654
005 2017-05-16
008 2017 bl uuuu u00u1 u #d
100 1 $aWINCKLER-SOSINSKI, L.T.
245 $aBenthic macroinvertebrates and degradation of phytomass as indicators of ecosystem functions in flooded rice cropping.$h[electronic resource]
260 $c2017
500 $aTítulo em português: Macroinvertebrados betônicos e degradação da fitomassa como indicadores de funções ecossistêmicas em arroz irrigado por inundação.
520 $aThe objective of this work was to evaluate the ecosystem functions of a natural wetland and of artificially flooded rice areas, managed under organic and conventional systems, by phytomass degradation and by the colonization of this material by benthic macroinvertebrates. The experiment was carried out in a natural wetland area, and in two flooded rice areas managed under organic and conventional systems. Twenty-five decomposition bags filled with 10 g of dry vegetation were installed in each site. At 14, 28, 42, 56, and 70 days after the beginning of the experiment, five bags from each site were collected. Macroinvertebrates were identified and classified by functional trophic group. The number of species of benthic macroinvertebrates increased: natural wetland > organic system > conventional system. The Chironomidae group was present in all areas, confirming its food plasticity and adaptability to different substrates and environmental stress situations. The Amphipoda group was present only in the artificially flooded rice area, and the Acari, only in the natural wetland. The diversity of species in the natural wetland area was higher than in the artificially flooded rice area. Nutrient cycling, provided by phytomass decomposition, is affected by the management system, and the delay in this process causes a reduction of the ecosystem functions in the conventional system.
650 $aAqualfs
650 $aBiogeochemical cycles
650 $aEcosystem services
650 $aPaddy soils
650 $aOryza Sativa
650 $aPlanossolo
653 $aCiclagem de nutriente
653 $aDegradação da biomassa
653 $aServiço ecossistêmico
653 $aSolo de várzea
700 1 $aGUTHS, A. K.
700 1 $aGAYER, P. R.
773 $tPesquisa Agropecuária Brasileira, Brasília, DF$gv. 52, n. 4, p. 261-270, abr. 2017.
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