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Registro Completo |
Biblioteca(s): |
Embrapa Pantanal. |
Data corrente: |
03/09/1997 |
Data da última atualização: |
03/09/1997 |
Autoria: |
SILVA, A. G. da. |
Afiliação: |
EMBRAPA. Centro de Pesquisa Agropecuaria do Pantanal (Corumba, MS). |
Título: |
Fitoplancton da Bacia do Rio Miranda, MS, Brasil. |
Ano de publicação: |
1993 |
Fonte/Imprenta: |
In: ENCONTRO DE BOTANICOS DO CENTRO OESTE, 2., 1993, Corumba. Resumos. Brasilia: SBB / SBB/RCO / CNPq / EMBRAPA-CPAC, 1993. |
Páginas: |
p.17 |
Idioma: |
Português |
Conteúdo: |
Foram fixadas 12 estacoes de coletas na bacia do rio Miranda, com objetivo de se estudar a composicao e distribuicao espacial da comunidade fitoplanctonica em 2 fases hidrologicas: cheia (abril/89) e seca (nov/89). Para as analises qualitativas e quantitativas efetuaram-se amostragens a subsuperficie no canal do rio, utilizando uma rede de 20um de abertura de malha, sendo as amostras preservadas com lugol acetico. As contagens foram feitas em microscopio invertido pelo procedimento dos campos aleatorios em 2 sub-amostras, a nivel de genero. A abundancia do fitoplancton foi maior no periodo seco em quase todas as estacoes. Qualitativamente foram identificadas 70 taxa distribuido em 8 classes. No periodo de cheia, a classe predominante foi Diatomophyceae e no periodo de seca, Chlorophyceae. Escecao ocorreu na estacao II (rio Santo Antonio) onde predominou Euglena (Euglenophyceae) e Oscillatoria (Cyanophyceae), grupos indicadores de ambientes eutrofizados, mostrando estar este trecho em processo de deterioracao ambiental. |
Palavras-Chave: |
Distribuicao espacial; Rio Miranda. |
Thesagro: |
Botânica; Fitoplâncton. |
Thesaurus Nal: |
botany; Pantanal. |
Categoria do assunto: |
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Marc: |
LEADER 01623naa a2200205 a 4500 001 1791570 005 1997-09-03 008 1993 bl uuuu u00u1 u #d 100 1 $aSILVA, A. G. da 245 $aFitoplancton da Bacia do Rio Miranda, MS, Brasil. 260 $c1993 300 $ap.17 520 $aForam fixadas 12 estacoes de coletas na bacia do rio Miranda, com objetivo de se estudar a composicao e distribuicao espacial da comunidade fitoplanctonica em 2 fases hidrologicas: cheia (abril/89) e seca (nov/89). Para as analises qualitativas e quantitativas efetuaram-se amostragens a subsuperficie no canal do rio, utilizando uma rede de 20um de abertura de malha, sendo as amostras preservadas com lugol acetico. As contagens foram feitas em microscopio invertido pelo procedimento dos campos aleatorios em 2 sub-amostras, a nivel de genero. A abundancia do fitoplancton foi maior no periodo seco em quase todas as estacoes. Qualitativamente foram identificadas 70 taxa distribuido em 8 classes. No periodo de cheia, a classe predominante foi Diatomophyceae e no periodo de seca, Chlorophyceae. Escecao ocorreu na estacao II (rio Santo Antonio) onde predominou Euglena (Euglenophyceae) e Oscillatoria (Cyanophyceae), grupos indicadores de ambientes eutrofizados, mostrando estar este trecho em processo de deterioracao ambiental. 650 $abotany 650 $aPantanal 650 $aBotânica 650 $aFitoplâncton 653 $aDistribuicao espacial 653 $aRio Miranda 773 $tIn: ENCONTRO DE BOTANICOS DO CENTRO OESTE, 2., 1993, Corumba. Resumos. Brasilia: SBB / SBB/RCO / CNPq / EMBRAPA-CPAC, 1993.
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Embrapa Pantanal (CPAP) |
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Registro Completo
Biblioteca(s): |
Embrapa Suínos e Aves. |
Data corrente: |
16/04/2015 |
Data da última atualização: |
05/08/2019 |
Tipo da produção científica: |
Artigo em Anais de Congresso |
Autoria: |
OLIVEIRA, P. A. V. de; ANGNES, G.; NICOLOSO, R. da S.; HIGARASHI, M. M. |
Afiliação: |
PAULO ARMANDO VICTORIA DE OLIVEIRA, CNPSA; UFSC; RODRIGO DA SILVEIRA NICOLOSO, CNPSA; MARTHA MAYUMI HIGARASHI, CNPSA. |
Título: |
Greenhouse gas emissions on the treatment of swine slurry by composting. |
Ano de publicação: |
2013 |
Fonte/Imprenta: |
In: INTERNATIONAL SYMPOSIUM ON EMISSIONS OF GAS AND DUST FROM LIVESTOCK, 2012, Saint-Malo. [Proceedings?]. Saint-Brieuc: INRA; Le Rheu: IFIP-Institut du Porc, 2013. EMILI 2012. |
Idioma: |
Inglês |
Notas: |
Edited by Mélynda Hassouna and Nadine Guingand. |
Conteúdo: |
The treatment of swine manure through composting is seen as an alternative to minimize environmental impact and im prove nutrient recycling. However, the degradation of organic matter during the composting process promotes greenhouse gas emissions (GHG: CO2, CH4, N2O), NH3 and water vapor. The objective of this study was to measure the flux of these gases to perform the mass balance (DM, TN, C and P) of composting piles. Three compost piles (3 m3, initial mass .935 kg of sawdust and slurry) were mounted inside PVC tunnels with controlled ventilation (flow 1.526 m3 /h). We evaluated temperatures and humidity (Datalogger TESTO 174H) inside and outside the tunnels and inside the biomass (TESTO Mod. 926, Type T), performed physical-chemical analysis of compost and measured GHG, NH3 and water vapor emissions every 4 min through infra red photoacoustic spectroscopy (INNOVA 1412). The average temperature observed in the biomass during composting was 45.53 ± 5.48ºC. The average H2O balance error (between input and output) recorded was 5.52%. Gaseo us losses of N-NH3 and N-N2O totaled 1.21 kg, representing 10.4% of the original 11.63 kg of N applied in the compost piles. NH3represented 78% of measured total N gaseous losses(NH3+N2O). The total C emitted as CH4 and CO2 gases totaled 80.96 kg, representing 40.2% of the original 201.28 kg of TOC in compost piles (sawdust+slurry). CO2 emission accounted for 97% of total C losses. Considering the global warming potential (GWP) of each GHG, 615.3 kg of CO2 eq were emitted duringcomposting. CO2 emissions accounted for 46.8% of total CO2 eq emission, while CH4 and N2O represented 11.1 and 42.2%, respectively. Mitigation of CH4, and especially N2 O emissions, during composting is critical due to the higher GPW of the se gases. The presence of pathogenic microorganisms (Escherichia coli and coli form bacteria) was observed in the input slurry, but those microorganisms were not detected in the final compost. It was possible to accurately measure and verify gas emissions with the association of direct measurements and mass balance. MenosThe treatment of swine manure through composting is seen as an alternative to minimize environmental impact and im prove nutrient recycling. However, the degradation of organic matter during the composting process promotes greenhouse gas emissions (GHG: CO2, CH4, N2O), NH3 and water vapor. The objective of this study was to measure the flux of these gases to perform the mass balance (DM, TN, C and P) of composting piles. Three compost piles (3 m3, initial mass .935 kg of sawdust and slurry) were mounted inside PVC tunnels with controlled ventilation (flow 1.526 m3 /h). We evaluated temperatures and humidity (Datalogger TESTO 174H) inside and outside the tunnels and inside the biomass (TESTO Mod. 926, Type T), performed physical-chemical analysis of compost and measured GHG, NH3 and water vapor emissions every 4 min through infra red photoacoustic spectroscopy (INNOVA 1412). The average temperature observed in the biomass during composting was 45.53 ± 5.48ºC. The average H2O balance error (between input and output) recorded was 5.52%. Gaseo us losses of N-NH3 and N-N2O totaled 1.21 kg, representing 10.4% of the original 11.63 kg of N applied in the compost piles. NH3represented 78% of measured total N gaseous losses(NH3+N2O). The total C emitted as CH4 and CO2 gases totaled 80.96 kg, representing 40.2% of the original 201.28 kg of TOC in compost piles (sawdust+slurry). CO2 emission accounted for 97% of total C losses. Considering the global warming potential (GWP) of each GHG... Mostrar Tudo |
Palavras-Chave: |
Global warming potential; Manure treatment; Swine manure. |
Thesaurus NAL: |
gas emissions. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/122452/1/final6699.pdf
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Marc: |
LEADER 02880nam a2200205 a 4500 001 2013711 005 2019-08-05 008 2013 bl uuuu u00u1 u #d 100 1 $aOLIVEIRA, P. A. V. de 245 $aGreenhouse gas emissions on the treatment of swine slurry by composting.$h[electronic resource] 260 $aIn: INTERNATIONAL SYMPOSIUM ON EMISSIONS OF GAS AND DUST FROM LIVESTOCK, 2012, Saint-Malo. [Proceedings?]. Saint-Brieuc: INRA; Le Rheu: IFIP-Institut du Porc, 2013. EMILI 2012.$c2012 500 $aEdited by Mélynda Hassouna and Nadine Guingand. 520 $aThe treatment of swine manure through composting is seen as an alternative to minimize environmental impact and im prove nutrient recycling. However, the degradation of organic matter during the composting process promotes greenhouse gas emissions (GHG: CO2, CH4, N2O), NH3 and water vapor. The objective of this study was to measure the flux of these gases to perform the mass balance (DM, TN, C and P) of composting piles. Three compost piles (3 m3, initial mass .935 kg of sawdust and slurry) were mounted inside PVC tunnels with controlled ventilation (flow 1.526 m3 /h). We evaluated temperatures and humidity (Datalogger TESTO 174H) inside and outside the tunnels and inside the biomass (TESTO Mod. 926, Type T), performed physical-chemical analysis of compost and measured GHG, NH3 and water vapor emissions every 4 min through infra red photoacoustic spectroscopy (INNOVA 1412). The average temperature observed in the biomass during composting was 45.53 ± 5.48ºC. The average H2O balance error (between input and output) recorded was 5.52%. Gaseo us losses of N-NH3 and N-N2O totaled 1.21 kg, representing 10.4% of the original 11.63 kg of N applied in the compost piles. NH3represented 78% of measured total N gaseous losses(NH3+N2O). The total C emitted as CH4 and CO2 gases totaled 80.96 kg, representing 40.2% of the original 201.28 kg of TOC in compost piles (sawdust+slurry). CO2 emission accounted for 97% of total C losses. Considering the global warming potential (GWP) of each GHG, 615.3 kg of CO2 eq were emitted duringcomposting. CO2 emissions accounted for 46.8% of total CO2 eq emission, while CH4 and N2O represented 11.1 and 42.2%, respectively. Mitigation of CH4, and especially N2 O emissions, during composting is critical due to the higher GPW of the se gases. The presence of pathogenic microorganisms (Escherichia coli and coli form bacteria) was observed in the input slurry, but those microorganisms were not detected in the final compost. It was possible to accurately measure and verify gas emissions with the association of direct measurements and mass balance. 650 $agas emissions 653 $aGlobal warming potential 653 $aManure treatment 653 $aSwine manure 700 1 $aANGNES, G. 700 1 $aNICOLOSO, R. da S. 700 1 $aHIGARASHI, M. M.
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