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Registro Completo |
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
20/02/2013 |
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Data da última atualização: |
06/06/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
AGUIAR, M. I. de; FIALHO, J. S.; ARAÚJO, F. das C. S. de; CAMPANHA, M. M.; OLIVEIRA, T. S. de. |
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Afiliação: |
MONICA MATOSO CAMPANHA, CNPMS. |
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Título: |
Does biomass production depend on plant community diversity? |
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Ano de publicação: |
2013 |
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Fonte/Imprenta: |
Agroforestry Systems, Dordrecht, v. 87, n. 3, p. 699-711, 2013. |
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DOI: |
10.1007/s10457-012-9590-9 |
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Idioma: |
Inglês |
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Conteúdo: |
In order to ensure the sustainability of agroecosystems, biodiversity must be a priority. Agroforestry, which includes trees, is an example of such diverse systems. We evaluated plant diversity and aboveground biomass production to assess whether areas under fallow following traditional cultivation return to their initial condition. Also, plant diversity and aboveground biomass production were assessed in agroforestry systems (AFS) to determine if these were similar to unmanaged ecosystems. Another objective of the study was to observe the influence of plant diversity on aboveground biomass production in plant communities and also in the population of the dominant species, Cordia oncocalyx. Plant diversity was evaluated by assessing species richness, as well as using Shannon’s (H0) and Pielou’s (J0) indices. Aboveground plant biomass was evaluated in two AFS: agrosilvopastoral (ASP) and silvopastoral (SP), and also in a traditionally managed agricultural system (AG), areas that had been under fallow for six years (F6) and nine years (F9) and an area of unmanaged caatinga (CAT) vegetation. We observed that the ASP system had a lower diversity and number of species, especially tree species. However, it sustained the same total biomass production as CAT and fallow areas. The SP system, despite having lower H0 and J0 indices as well as lower total biomass production, had a similar number of species to CAT and cropped and fallow systems AG, F6 and F9. Plant biomass in F6 and F9 had recovered to productivity levels of unmanaged CAT vegetation; however the diversity indices were not restored to the same level. Plant diversity did not have an effect on the productivity of the agroecosystems. Likewise, annual biomass production by C. oncocalyx is not dependent upon diversity, but it is influenced by the growth stage of individuals. MenosIn order to ensure the sustainability of agroecosystems, biodiversity must be a priority. Agroforestry, which includes trees, is an example of such diverse systems. We evaluated plant diversity and aboveground biomass production to assess whether areas under fallow following traditional cultivation return to their initial condition. Also, plant diversity and aboveground biomass production were assessed in agroforestry systems (AFS) to determine if these were similar to unmanaged ecosystems. Another objective of the study was to observe the influence of plant diversity on aboveground biomass production in plant communities and also in the population of the dominant species, Cordia oncocalyx. Plant diversity was evaluated by assessing species richness, as well as using Shannon’s (H0) and Pielou’s (J0) indices. Aboveground plant biomass was evaluated in two AFS: agrosilvopastoral (ASP) and silvopastoral (SP), and also in a traditionally managed agricultural system (AG), areas that had been under fallow for six years (F6) and nine years (F9) and an area of unmanaged caatinga (CAT) vegetation. We observed that the ASP system had a lower diversity and number of species, especially tree species. However, it sustained the same total biomass production as CAT and fallow areas. The SP system, despite having lower H0 and J0 indices as well as lower total biomass production, had a similar number of species to CAT and cropped and fallow systems AG, F6 and F9. Plant biomass in F6 and F9 h... Mostrar Tudo |
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Palavras-Chave: |
Agroecologia. |
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Thesagro: |
Ecologia vegetal. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/158878/1/Does-biomass-1.pdf
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Marc: |
LEADER 02478naa a2200205 a 4500
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008 2013 bl uuuu u00u1 u #d
024 7 $a10.1007/s10457-012-9590-9$2DOI
100 1 $aAGUIAR, M. I. de
245 $aDoes biomass production depend on plant community diversity?$h[electronic resource]
260 $c2013
520 $aIn order to ensure the sustainability of agroecosystems, biodiversity must be a priority. Agroforestry, which includes trees, is an example of such diverse systems. We evaluated plant diversity and aboveground biomass production to assess whether areas under fallow following traditional cultivation return to their initial condition. Also, plant diversity and aboveground biomass production were assessed in agroforestry systems (AFS) to determine if these were similar to unmanaged ecosystems. Another objective of the study was to observe the influence of plant diversity on aboveground biomass production in plant communities and also in the population of the dominant species, Cordia oncocalyx. Plant diversity was evaluated by assessing species richness, as well as using Shannon’s (H0) and Pielou’s (J0) indices. Aboveground plant biomass was evaluated in two AFS: agrosilvopastoral (ASP) and silvopastoral (SP), and also in a traditionally managed agricultural system (AG), areas that had been under fallow for six years (F6) and nine years (F9) and an area of unmanaged caatinga (CAT) vegetation. We observed that the ASP system had a lower diversity and number of species, especially tree species. However, it sustained the same total biomass production as CAT and fallow areas. The SP system, despite having lower H0 and J0 indices as well as lower total biomass production, had a similar number of species to CAT and cropped and fallow systems AG, F6 and F9. Plant biomass in F6 and F9 had recovered to productivity levels of unmanaged CAT vegetation; however the diversity indices were not restored to the same level. Plant diversity did not have an effect on the productivity of the agroecosystems. Likewise, annual biomass production by C. oncocalyx is not dependent upon diversity, but it is influenced by the growth stage of individuals.
650 $aEcologia vegetal
653 $aAgroecologia
700 1 $aFIALHO, J. S.
700 1 $aARAÚJO, F. das C. S. de
700 1 $aCAMPANHA, M. M.
700 1 $aOLIVEIRA, T. S. de
773 $tAgroforestry Systems, Dordrecht$gv. 87, n. 3, p. 699-711, 2013.
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Registro original: |
Embrapa Milho e Sorgo (CNPMS) |
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Registro Completo
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
10/03/2009 |
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Data da última atualização: |
14/05/2024 |
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Tipo da produção científica: |
Artigo em Anais de Congresso / Nota Técnica |
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Autoria: |
OTENIO, M. H.; SANTOS, A. O.; GUIMARÃES, M. F. M.; OTENIO, C. C. M. |
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Afiliação: |
Marcelo Henrique Otenio, Embrapa Gado de Leite; Andréia de Oliveira Santos, CES/JF; Marta Fonseca Martins Guimarães, Embrapa Gado de Leite; Cristiane Corsini Medeiros Otenio, Unimep. |
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Título: |
Gerenciamento de resíduos biológicos em laboratórios de pesquisa científica. |
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Ano de publicação: |
2008 |
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Fonte/Imprenta: |
In: SIMPÓSIO LUSO-BRASILEIRO DE ENGENHARIA SANITÁRIA E AMBIENTAL. AMAZÔNIA: DESENVOLVER SEM DEGRADAR, 13., 2008, Belém. Anais... Belém: ABES, 2008. |
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Idioma: |
Português |
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Palavras-Chave: |
Gerenciamento de resíduos; Instituições de pesquisa; Resíduo biológico. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/596188/1/Gerenciamento-de-residuos-biologicos-em-laboratorios-de-pesquisa-cientifica.pdf
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Marc: |
LEADER 00662nam a2200169 a 4500
001 1596188
005 2024-05-14
008 2008 bl uuuu u00u1 u #d
100 1 $aOTENIO, M. H.
245 $aGerenciamento de resíduos biológicos em laboratórios de pesquisa científica.$h[electronic resource]
260 $aIn: SIMPÓSIO LUSO-BRASILEIRO DE ENGENHARIA SANITÁRIA E AMBIENTAL. AMAZÔNIA: DESENVOLVER SEM DEGRADAR, 13., 2008, Belém. Anais... Belém: ABES$c2008
653 $aGerenciamento de resíduos
653 $aInstituições de pesquisa
653 $aResíduo biológico
700 1 $aSANTOS, A. O.
700 1 $aGUIMARÃES, M. F. M.
700 1 $aOTENIO, C. C. M.
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Embrapa Gado de Leite (CNPGL) |
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