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Registro Completo |
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Biblioteca(s): |
Embrapa Agrobiologia; Embrapa Instrumentação; Embrapa Solos. |
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Data corrente: |
05/09/2000 |
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Data da última atualização: |
18/06/2004 |
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Autoria: |
BETTIOL, W.; CAMARGO, O. A. |
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Título: |
Impacto ambiental do uso agrícola do lodo de esgoto |
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Ano de publicação: |
2000 |
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Fonte/Imprenta: |
Jaguariuna : Embrapa Meio Ambiente, 2000 |
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Páginas: |
312 p. |
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ISBN: |
85-85771-05-4 |
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Idioma: |
Português |
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Conteúdo: |
Tratamento de esgoto, geracao e disposicao do lodo de esgoto. Tratamento de esgoto e geracao de lodo. Alternativas de minimizacao da producao e desaguamento de lodo de esgoto. Estabilizacao e higienizacao de biossolidos. Alternativas de disposicao final de biossolidos gerados em estacoes de tratamento de esgotos. Uso agricola e florestal do lodo de esgoto. Potencial do lodo de esgoto como fontes de nutrientes para as plantas. Alternativa agronomica para o biossolido: a experiencia de Brasilia. Experiencia da companhia de saneamento do Distrito Federal na reciclagem agricola de biossolido. Aplicabilidade do biossolido em plantacoes florestais. Reflexo no ciclo dos nutrientes. Efeito na fertilidade do solo, nutricao e crescimento das arvores. Alteracoes microbianas no solo. Lixiviacao de N inorganico e toxicidade de metais pesados. Avaliacao do potencial de uso do residuo da ETE de Barueri, SP. Normas da utilizacao de lodos de esgoto na agricultura. Impacto agroambiental do uso agricola do lodo de esgoto. Fundamentos teoricos do processo de avaliacao de risco. Riscos de contaminacao do agroecossistema com parasitos pelo uso do lodo de esgoto. Riscos de contaminacao do agroecossistema com metais pesados. Impacto de biossolidos nas comunidades microbianas dos solos. Gestao publica do uso agricola do lodo de esgoto. |
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Palavras-Chave: |
Esgoto; Lixiviation; Lodo residual - fertilizante. |
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Thesagro: |
Lixiviação; Lodo Residual; Metal Pesado; Rede de Esgoto. |
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Thesaurus Nal: |
heavy metals; leaching; sewage sludge. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02008nam a2200265 a 4500
001 1025942
005 2004-06-18
008 2000 bl uuuu 00u1 u #d
020 $a85-85771-05-4
100 1 $aBETTIOL, W.
245 $aImpacto ambiental do uso agrícola do lodo de esgoto
260 $aJaguariuna : Embrapa Meio Ambiente$c2000
300 $a312 p.
520 $aTratamento de esgoto, geracao e disposicao do lodo de esgoto. Tratamento de esgoto e geracao de lodo. Alternativas de minimizacao da producao e desaguamento de lodo de esgoto. Estabilizacao e higienizacao de biossolidos. Alternativas de disposicao final de biossolidos gerados em estacoes de tratamento de esgotos. Uso agricola e florestal do lodo de esgoto. Potencial do lodo de esgoto como fontes de nutrientes para as plantas. Alternativa agronomica para o biossolido: a experiencia de Brasilia. Experiencia da companhia de saneamento do Distrito Federal na reciclagem agricola de biossolido. Aplicabilidade do biossolido em plantacoes florestais. Reflexo no ciclo dos nutrientes. Efeito na fertilidade do solo, nutricao e crescimento das arvores. Alteracoes microbianas no solo. Lixiviacao de N inorganico e toxicidade de metais pesados. Avaliacao do potencial de uso do residuo da ETE de Barueri, SP. Normas da utilizacao de lodos de esgoto na agricultura. Impacto agroambiental do uso agricola do lodo de esgoto. Fundamentos teoricos do processo de avaliacao de risco. Riscos de contaminacao do agroecossistema com parasitos pelo uso do lodo de esgoto. Riscos de contaminacao do agroecossistema com metais pesados. Impacto de biossolidos nas comunidades microbianas dos solos. Gestao publica do uso agricola do lodo de esgoto.
650 $aheavy metals
650 $aleaching
650 $asewage sludge
650 $aLixiviação
650 $aLodo Residual
650 $aMetal Pesado
650 $aRede de Esgoto
653 $aEsgoto
653 $aLixiviation
653 $aLodo residual - fertilizante
700 1 $aCAMARGO, O. A.
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Registro original: |
Embrapa Instrumentação (CNPDIA) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Amazônia Oriental. Para informações adicionais entre em contato com cpatu.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
22/08/2006 |
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Data da última atualização: |
28/11/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
Internacional - A |
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Autoria: |
SOMMER, R.; VLEK, P. L. G.; SÁ, T. D. de A.; VIELHAUER, K.; COELHO, R. de F. R.; FÖLSTER, H. |
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Afiliação: |
TATIANA DEANE DE ABREU SA, CPATU. |
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Título: |
Nutrient balance of shifting cultivation by burning or mulching in the eastern Amazon - evidence for subsoil nutrient accumulation. |
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Ano de publicação: |
2004 |
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Fonte/Imprenta: |
Nutrient Cycling in Agroecosystems, v. 68, n. 3, p. 257-271, Mar. 2004. |
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DOI: |
10.1023/B:FRES.0000019470.93637.54 |
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Idioma: |
Inglês |
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Conteúdo: |
For over a hundred years shifting cultivation with slash-and-burn land preparation has been the predominant type of land use by smallholders in the Bragantina region of the Brazilian Eastern Amazon. This study contrasts the nutrient balance of slash-and-burn agriculture with a fire-free cultivation. Therefore, one half of a 3.5-year-old (28.7 t DM ha?1) and a 7-year-old woody fallow vegetation (46.5 t DM ha?1) was burnt and the other half mulched, leaving the biomass as a surface residue. Subsequently, a sequence of maize, beans and cassava was cropped for 1.5 year. Burning the 3.5- and 7-year-old fallow removed 97 and 94% of the C, 98 and 96% of the N, 90 and 63% of the P-stocks, and between 45 and 70% of the cations K, Mg and Ca of the aboveground biomass by volatilization or ash-particle transfer. These losses were avoided with the slash-and-mulch land preparation. Mulching did not increase the losses of nutrients by leaching, despite the high amount of rapidly decomposing surface mulch. Also the length of preceding fallow had no significant influence on leaching losses. At a depth of 3 m, leached nutrients were quantitatively negligible in both treatments. Comparing the nutrient fluxes at soil depths of 0.9 m, 1.8 m and 3 m, the amounts of all mobile nutrients, and also of chloride and sodium were markedly reduced during percolation and must have been retained. It is likely that nutrient retention in the subsoil layer is only temporary, emphasizing the need for a rapid re-establishment of the naturally deep-rooting secondary vegetation after abandonment of sites to enable uptake of these nutrients. The overall nutrient balance was highly negative for slash-and-burn. 291 and 403 kg N ha?1, 21 and 18 kg P ha?1, and 70 and 132 kg K ha?1 were removed from the burnt plots with a preceding fallow of 3.5 and 7 years, respectively. A reduced fallow period (3.5 years), which is a common trend in the region, resulted in a higher mean annual rate of nutrient loss averaged over the duration of the cycle than a fallow period of 7 years. Eliminating the burning losses by mulching brought the agricultural system back to an equilibrated or even slightly positive nutrient balance, even after a reduced fallow period. Thus, slash-and-mulch is a viable alternative to maintain agricultural productivity and ecosystem functioning. MenosFor over a hundred years shifting cultivation with slash-and-burn land preparation has been the predominant type of land use by smallholders in the Bragantina region of the Brazilian Eastern Amazon. This study contrasts the nutrient balance of slash-and-burn agriculture with a fire-free cultivation. Therefore, one half of a 3.5-year-old (28.7 t DM ha?1) and a 7-year-old woody fallow vegetation (46.5 t DM ha?1) was burnt and the other half mulched, leaving the biomass as a surface residue. Subsequently, a sequence of maize, beans and cassava was cropped for 1.5 year. Burning the 3.5- and 7-year-old fallow removed 97 and 94% of the C, 98 and 96% of the N, 90 and 63% of the P-stocks, and between 45 and 70% of the cations K, Mg and Ca of the aboveground biomass by volatilization or ash-particle transfer. These losses were avoided with the slash-and-mulch land preparation. Mulching did not increase the losses of nutrients by leaching, despite the high amount of rapidly decomposing surface mulch. Also the length of preceding fallow had no significant influence on leaching losses. At a depth of 3 m, leached nutrients were quantitatively negligible in both treatments. Comparing the nutrient fluxes at soil depths of 0.9 m, 1.8 m and 3 m, the amounts of all mobile nutrients, and also of chloride and sodium were markedly reduced during percolation and must have been retained. It is likely that nutrient retention in the subsoil layer is only temporary, emphasizing the need for a rapid r... Mostrar Tudo |
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Palavras-Chave: |
Agricultura migratória; Brasil. |
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Thesagro: |
Cobertura Morta; Queimada; Vegetação Secundária. |
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Thesaurus NAL: |
Amazonia. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 03199naa a2200265 a 4500
001 1408538
005 2022-11-28
008 2004 bl uuuu u00u1 u #d
024 7 $a10.1023/B:FRES.0000019470.93637.54$2DOI
100 1 $aSOMMER, R.
245 $aNutrient balance of shifting cultivation by burning or mulching in the eastern Amazon - evidence for subsoil nutrient accumulation.$h[electronic resource]
260 $c2004
520 $aFor over a hundred years shifting cultivation with slash-and-burn land preparation has been the predominant type of land use by smallholders in the Bragantina region of the Brazilian Eastern Amazon. This study contrasts the nutrient balance of slash-and-burn agriculture with a fire-free cultivation. Therefore, one half of a 3.5-year-old (28.7 t DM ha?1) and a 7-year-old woody fallow vegetation (46.5 t DM ha?1) was burnt and the other half mulched, leaving the biomass as a surface residue. Subsequently, a sequence of maize, beans and cassava was cropped for 1.5 year. Burning the 3.5- and 7-year-old fallow removed 97 and 94% of the C, 98 and 96% of the N, 90 and 63% of the P-stocks, and between 45 and 70% of the cations K, Mg and Ca of the aboveground biomass by volatilization or ash-particle transfer. These losses were avoided with the slash-and-mulch land preparation. Mulching did not increase the losses of nutrients by leaching, despite the high amount of rapidly decomposing surface mulch. Also the length of preceding fallow had no significant influence on leaching losses. At a depth of 3 m, leached nutrients were quantitatively negligible in both treatments. Comparing the nutrient fluxes at soil depths of 0.9 m, 1.8 m and 3 m, the amounts of all mobile nutrients, and also of chloride and sodium were markedly reduced during percolation and must have been retained. It is likely that nutrient retention in the subsoil layer is only temporary, emphasizing the need for a rapid re-establishment of the naturally deep-rooting secondary vegetation after abandonment of sites to enable uptake of these nutrients. The overall nutrient balance was highly negative for slash-and-burn. 291 and 403 kg N ha?1, 21 and 18 kg P ha?1, and 70 and 132 kg K ha?1 were removed from the burnt plots with a preceding fallow of 3.5 and 7 years, respectively. A reduced fallow period (3.5 years), which is a common trend in the region, resulted in a higher mean annual rate of nutrient loss averaged over the duration of the cycle than a fallow period of 7 years. Eliminating the burning losses by mulching brought the agricultural system back to an equilibrated or even slightly positive nutrient balance, even after a reduced fallow period. Thus, slash-and-mulch is a viable alternative to maintain agricultural productivity and ecosystem functioning.
650 $aAmazonia
650 $aCobertura Morta
650 $aQueimada
650 $aVegetação Secundária
653 $aAgricultura migratória
653 $aBrasil
700 1 $aVLEK, P. L. G.
700 1 $aSÁ, T. D. de A.
700 1 $aVIELHAUER, K.
700 1 $aCOELHO, R. de F. R.
700 1 $aFÖLSTER, H.
773 $tNutrient Cycling in Agroecosystems$gv. 68, n. 3, p. 257-271, Mar. 2004.
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