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Registro Completo |
Biblioteca(s): |
Embrapa Semiárido. |
Data corrente: |
03/04/2006 |
Data da última atualização: |
22/07/2022 |
Tipo da produção científica: |
Artigo de Divulgação na Mídia |
Autoria: |
ARAUJO, G. G. L. de; HOLANDA JUNIOR, E. V.; OLIVEIRA, M. C. de. |
Afiliação: |
GHERMAN GARCIA LEAL DE ARAUJO, CPATSA; EVANDRO VASCONCELOS HOLANDA JUNIOR, CPATSA; MARTINIANO CAVALCANTI DE OLIVEIRA, CPATSA. |
Título: |
Alimentação de caprinos e ovinos no semi-árido: alternativas e potenciais. |
Ano de publicação: |
2006 |
Fonte/Imprenta: |
O Berro, n. 87, p. 52-60, mar. 2006. |
Idioma: |
Português |
Conteúdo: |
Alternativas de alimentação para caprinos e ovinos; Alternativas de suplementação a pasto e de dietas para terminação. |
Palavras-Chave: |
Erva-sal; Espécie forrageira; Leucena; Melancia forrageira; Palma; Suplementação a pasto. |
Thesagro: |
Algaroba; Alimentação; Caprino; Cunha; Gliricidia; Guandu; Mandioca; Maniçoba; Milheto; Ovino; Produção animal; Sorgo. |
Thesaurus Nal: |
Animal production. |
Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/123039/1/Gherman.pdf
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Marc: |
LEADER 01046nam a2200361 a 4500 001 1156551 005 2022-07-22 008 2006 bl uuuu u00u1 u #d 100 1 $aARAUJO, G. G. L. de 245 $aAlimentação de caprinos e ovinos no semi-árido$balternativas e potenciais. 260 $aO Berro, n. 87, p. 52-60, mar. 2006.$c2006 520 $aAlternativas de alimentação para caprinos e ovinos; Alternativas de suplementação a pasto e de dietas para terminação. 650 $aAnimal production 650 $aAlgaroba 650 $aAlimentação 650 $aCaprino 650 $aCunha 650 $aGliricidia 650 $aGuandu 650 $aMandioca 650 $aManiçoba 650 $aMilheto 650 $aOvino 650 $aProdução animal 650 $aSorgo 653 $aErva-sal 653 $aEspécie forrageira 653 $aLeucena 653 $aMelancia forrageira 653 $aPalma 653 $aSuplementação a pasto 700 1 $aHOLANDA JUNIOR, E. V. 700 1 $aOLIVEIRA, M. C. de
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Embrapa Semiárido (CPATSA) |
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| Acesso ao texto completo restrito à biblioteca da Embrapa Instrumentação. Para informações adicionais entre em contato com cnpdia.biblioteca@embrapa.br. |
Registro Completo
Biblioteca(s): |
Embrapa Instrumentação. |
Data corrente: |
09/01/2023 |
Data da última atualização: |
27/03/2023 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 1 |
Autoria: |
MONTES, C. R.; MERDY, P.; SILVA, W. T. L. da; ISHIDA, D.; MELFI, A. J.; SANTIN, R. C.; LUCAS Y. |
Afiliação: |
WILSON TADEU LOPES DA SILVA, CNPDIA. |
Título: |
Mineralization of soil organic matter from equatorial giant podzols submitted to drier pedoclimate: A drainage topochronosequence study. |
Ano de publicação: |
2023 |
Fonte/Imprenta: |
Catena, v. 222, 106837. |
Páginas: |
1 - 10 |
ISSN: |
0341-8162 |
DOI: |
https://doi.org/10.1016/j.catena.2022.106837 |
Idioma: |
Inglês |
Conteúdo: |
Podzol soils are an important carbon pool in the Amazon, due to the high organic matter (OM) content in their topsoil horizons and deep Bh. To quantify the evolution of the stock and the lability of this carbon pool in the hypothesis of the onset of drier climates, we studied a soil toposequence at the end of which the incision of a river meander lowered the water table, as would result from a drier climate, allowing oxidation the Bh horizons. The soil OM was quantified and characterized (physical fractionation, humification indexes, 14C average age) and its lability under oxic conditions was estimated by measuring respiration during a 660-days experiment. Podzol genesis time was calculated by constraining the carbon fluxes using both C stock and 14C average age. The results confirmed that the studied podzols store large amounts of carbon (62.8 kgC m− 2 on average). They resulted from a long genesis time, probably greater than 30?50 ky. Topsoil OM is very labile with a residence time of about 100 y; Bh OM is highly humified with a high C/N (62.7 on average) related to low respiration rates. The measured respiration rates were used to estimate the C emission that would result from drier climates at 55 gC m− 2 y− 1 on average during the first 100 y, which would correspond, by extrapolation, to 8.5 1012 gC y− 1 for all Amazonian podzols. |
Palavras-Chave: |
Amazon podzol; Humification index; Soil carbon storage and loss; Soil formation rate. |
Categoria do assunto: |
-- |
Marc: |
LEADER 02219naa a2200277 a 4500 001 2150786 005 2023-03-27 008 2023 bl uuuu u00u1 u #d 022 $a0341-8162 024 7 $ahttps://doi.org/10.1016/j.catena.2022.106837$2DOI 100 1 $aMONTES, C. R. 245 $aMineralization of soil organic matter from equatorial giant podzols submitted to drier pedoclimate$bA drainage topochronosequence study.$h[electronic resource] 260 $c2023 300 $a1 - 10 520 $aPodzol soils are an important carbon pool in the Amazon, due to the high organic matter (OM) content in their topsoil horizons and deep Bh. To quantify the evolution of the stock and the lability of this carbon pool in the hypothesis of the onset of drier climates, we studied a soil toposequence at the end of which the incision of a river meander lowered the water table, as would result from a drier climate, allowing oxidation the Bh horizons. The soil OM was quantified and characterized (physical fractionation, humification indexes, 14C average age) and its lability under oxic conditions was estimated by measuring respiration during a 660-days experiment. Podzol genesis time was calculated by constraining the carbon fluxes using both C stock and 14C average age. The results confirmed that the studied podzols store large amounts of carbon (62.8 kgC m− 2 on average). They resulted from a long genesis time, probably greater than 30?50 ky. Topsoil OM is very labile with a residence time of about 100 y; Bh OM is highly humified with a high C/N (62.7 on average) related to low respiration rates. The measured respiration rates were used to estimate the C emission that would result from drier climates at 55 gC m− 2 y− 1 on average during the first 100 y, which would correspond, by extrapolation, to 8.5 1012 gC y− 1 for all Amazonian podzols. 653 $aAmazon podzol 653 $aHumification index 653 $aSoil carbon storage and loss 653 $aSoil formation rate 700 1 $aMERDY, P. 700 1 $aSILVA, W. T. L. da 700 1 $aISHIDA, D. 700 1 $aMELFI, A. J. 700 1 $aSANTIN, R. C. 700 1 $aLUCAS Y. 773 $tCatena$gv. 222, 106837.
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