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Registro Completo |
Biblioteca(s): |
Embrapa Agrossilvipastoril. |
Data corrente: |
14/01/2015 |
Data da última atualização: |
14/01/2015 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
CORDEIRO, R. C.; TURCQ, B.; MOREIRA, L. S.; RODRIGUES, R. de A. R.; SIMÕES FILHO, F. F. L.; MARTINS, G. S.; SANTOS, A. B.; BARBOSA, M.; CONCEIÇÃO, M. C. G. da; RODRIGUES, R. de C.; EVANGELISTA, H.; MOREIRA-TURCQ, P.; PENIDO, Y. P.; SIFEDDINE, A.; SEOANE, J. C. S. |
Afiliação: |
RENATO CAMPELLO CORDEIRO, UFF; BRUNO TURCQ, IRD-LOCEAN; LUCIANE SILVA MOREIRA, UFF; RENATO DE ARAGAO RIBEIRO RODRIGUES, CPAMT; FRANCISCO FERNANDO LAMEGO SIMÕES FILHO, IEN; GABRIEL SOUZA MARTINS, UFF; ALICE BOSCO SANTOS, UFF; MARCELO BARBOSA, UFRJ; MARCELA CARDOSO GUILLES DA CONCEIÇÃO, UFF; RODRIGO DE CARVALHO RODRIGUES, UFF; HEITOR EVANGELISTA, UERJ-LARAMG; PATRICIA MOREIRA-TURCQ, IRD-GET; YVAGA POTY PENIDO, UFF; ABDELFETTAH SIFEDDINE, UFF; JOSÉ CARLOS SÍCOLI SEOANE, UFRJ. |
Título: |
Palaeofires in Amazon: Interplay between land use change and palaeoclimatic events |
Ano de publicação: |
2014 |
Fonte/Imprenta: |
Palaeogeography, Palaeoclimatology, Palaeoecology, v. 415, p.137-151, dez. 2014 |
Páginas: |
15 |
ISSN: |
0031-0182 |
DOI: |
http://dx.doi.org.ez103.periodicos.capes.gov.br/10.1016/j.palaeo.2014.07.020 |
Idioma: |
Inglês |
Conteúdo: |
Interpreting the geological record of Amazon biomass combustion requires comparing charcoal accumulation rates in various biomes at different time scales. Charcoal accumulation rates, a proxy for palaeofire records, were obtained in sediment cores from Amazon lakes surrounded by several vegetation types and from a reservoirs in an intense land use change region. The records presented in this study were obtained in the following areas i) a reservoirs in Alta Floresta region (northern Mato Grosso State); ii) Lago do Saci (southern Pará State), a lake close to Alta Floresta and located at the southern border of Pará State; iii) a bog in an ecotone area in the Humaitá region (southern Amazonas State); iv) lakes in lateritic iron crust of the Carajás Hills (southeastern Pará State); v) Lago Comprido, a floodplain lake close to the Amazon River and surrounded by tropical rain forest (Monte Alegre, Pará State; vi) Lagoa da Pata in the Morro dos Seis Lagos alkaline complex (São Gabriel da Cachoeira, Amazonas State) and vii) Lago Caracaranã, a secluded lake in the northern Amazon cerrado (Roraima State). The highest charcoal accumulation rates were observed for modern records related to an intense change in land use at Alta Floresta, which had no precedent during the Holocene history of the Amazon. High charcoal accumulation rates that were observed in the Carajás region during low lake level phases in the Amazon in the mid-Holocene were comparable to those at the onset of the human settlement in Alta Floresta region. An increase in charcoal accumulation rate was observed in the late Holocene when the lake level was high, suggesting an interaction between climates and human presence. Low charcoal accumulation rates are typical of modern high rainfall environments, as observed in Lagoa da Pata where the environment is not susceptible to occurrences of wildfires even during relatively drier climatic phases. Low charcoal accumulation rates also exist in the relatively dry cerrado (savanna type) biome even during relatively dry phases in the Caracaranã region where the savanna-type vegetation biomass is lower and thus generates less charcoal particles than forest ecosystems. MenosInterpreting the geological record of Amazon biomass combustion requires comparing charcoal accumulation rates in various biomes at different time scales. Charcoal accumulation rates, a proxy for palaeofire records, were obtained in sediment cores from Amazon lakes surrounded by several vegetation types and from a reservoirs in an intense land use change region. The records presented in this study were obtained in the following areas i) a reservoirs in Alta Floresta region (northern Mato Grosso State); ii) Lago do Saci (southern Pará State), a lake close to Alta Floresta and located at the southern border of Pará State; iii) a bog in an ecotone area in the Humaitá region (southern Amazonas State); iv) lakes in lateritic iron crust of the Carajás Hills (southeastern Pará State); v) Lago Comprido, a floodplain lake close to the Amazon River and surrounded by tropical rain forest (Monte Alegre, Pará State; vi) Lagoa da Pata in the Morro dos Seis Lagos alkaline complex (São Gabriel da Cachoeira, Amazonas State) and vii) Lago Caracaranã, a secluded lake in the northern Amazon cerrado (Roraima State). The highest charcoal accumulation rates were observed for modern records related to an intense change in land use at Alta Floresta, which had no precedent during the Holocene history of the Amazon. High charcoal accumulation rates that were observed in the Carajás region during low lake level phases in the Amazon in the mid-Holocene were comparable to those at the onset of the human ... Mostrar Tudo |
Thesagro: |
Carvão Vegetal. |
Thesaurus Nal: |
Amazonia; Charcoal; Climate change. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/115554/1/cpamt-2014-rodrigues-palaeofires-amazon.pdf
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Marc: |
LEADER 03337naa a2200373 a 4500 001 2005589 005 2015-01-14 008 2014 bl uuuu u00u1 u #d 022 $a0031-0182 024 7 $ahttp://dx.doi.org.ez103.periodicos.capes.gov.br/10.1016/j.palaeo.2014.07.020$2DOI 100 1 $aCORDEIRO, R. C. 245 $aPalaeofires in Amazon$bInterplay between land use change and palaeoclimatic events$h[electronic resource] 260 $c2014 300 $a15 520 $aInterpreting the geological record of Amazon biomass combustion requires comparing charcoal accumulation rates in various biomes at different time scales. Charcoal accumulation rates, a proxy for palaeofire records, were obtained in sediment cores from Amazon lakes surrounded by several vegetation types and from a reservoirs in an intense land use change region. The records presented in this study were obtained in the following areas i) a reservoirs in Alta Floresta region (northern Mato Grosso State); ii) Lago do Saci (southern Pará State), a lake close to Alta Floresta and located at the southern border of Pará State; iii) a bog in an ecotone area in the Humaitá region (southern Amazonas State); iv) lakes in lateritic iron crust of the Carajás Hills (southeastern Pará State); v) Lago Comprido, a floodplain lake close to the Amazon River and surrounded by tropical rain forest (Monte Alegre, Pará State; vi) Lagoa da Pata in the Morro dos Seis Lagos alkaline complex (São Gabriel da Cachoeira, Amazonas State) and vii) Lago Caracaranã, a secluded lake in the northern Amazon cerrado (Roraima State). The highest charcoal accumulation rates were observed for modern records related to an intense change in land use at Alta Floresta, which had no precedent during the Holocene history of the Amazon. High charcoal accumulation rates that were observed in the Carajás region during low lake level phases in the Amazon in the mid-Holocene were comparable to those at the onset of the human settlement in Alta Floresta region. An increase in charcoal accumulation rate was observed in the late Holocene when the lake level was high, suggesting an interaction between climates and human presence. Low charcoal accumulation rates are typical of modern high rainfall environments, as observed in Lagoa da Pata where the environment is not susceptible to occurrences of wildfires even during relatively drier climatic phases. Low charcoal accumulation rates also exist in the relatively dry cerrado (savanna type) biome even during relatively dry phases in the Caracaranã region where the savanna-type vegetation biomass is lower and thus generates less charcoal particles than forest ecosystems. 650 $aAmazonia 650 $aCharcoal 650 $aClimate change 650 $aCarvão Vegetal 700 1 $aTURCQ, B. 700 1 $aMOREIRA, L. S. 700 1 $aRODRIGUES, R. de A. R. 700 1 $aSIMÕES FILHO, F. F. L. 700 1 $aMARTINS, G. S. 700 1 $aSANTOS, A. B. 700 1 $aBARBOSA, M. 700 1 $aCONCEIÇÃO, M. C. G. da 700 1 $aRODRIGUES, R. de C. 700 1 $aEVANGELISTA, H. 700 1 $aMOREIRA-TURCQ, P. 700 1 $aPENIDO, Y. P. 700 1 $aSIFEDDINE, A. 700 1 $aSEOANE, J. C. S. 773 $tPalaeogeography, Palaeoclimatology, Palaeoecology$gv. 415, p.137-151, dez. 2014
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Embrapa Agrossilvipastoril (CPAMT) |
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Biblioteca(s): |
Embrapa Amapá. |
Data corrente: |
08/11/1993 |
Data da última atualização: |
06/10/2022 |
Autoria: |
CAVALCANTE, E. da S.; FIGUEIREDO, F. J. C.; FARIAS NETO, J. T. de. |
Afiliação: |
EMANUEL DA SILVA CAVALCANTE, CPAF-AP; FRANCISCO JOSE CAMARA FIGUEIREDO, CPAF-AP; JOAO TOME DE FARIAS NETO, CPAF-AP. |
Título: |
Competição regional de cultivares de feijão caupi no Território Federal do Amapá. |
Ano de publicação: |
1982 |
Fonte/Imprenta: |
Macapá: EMBRAPA-UEPAT de Macapá, 1982. |
Páginas: |
3 p. |
Série: |
(EMBRAPA-UEPAT de Macapá. Pesquisa em andamento, 15). |
Idioma: |
Português |
Conteúdo: |
O feijão caupi (Vigna unguiculata (L.) Walp) e componente importante nos sistemas de produção local, pois se constitui no alimento básico da população de baixa renda, notadamente, das zonas rurais e periferias dos centros urbanos. Entretanto, a produtividade media e relativamente baixa e não chega a atingir 500kg por hectare. Para tanto deve contribuir o uso inadequado de cultivares, o baixo nível de tecnologia e a baixa fertilidade dos solos amapaenses. |
Palavras-Chave: |
Amapá; Brasil; Caupi; Competição; Cultivar; Feijao-de-corda; Feijoeiro; Regional. |
Thesagro: |
Competição de Variedade; Feijão; Feijão de Corda; Variedade; Vigna Unguiculata. |
Thesaurus NAL: |
beans; Brazil; cowpeas; varieties. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/64994/1/AP-1982-competicao-regional-cultivares-feijao-caupi-territorio-amapa.pdf
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Marc: |
LEADER 01427nam a2200361 a 4500 001 1341753 005 2022-10-06 008 1982 bl uuuu u0uu1 u #d 100 1 $aCAVALCANTE, E. da S. 245 $aCompetição regional de cultivares de feijão caupi no Território Federal do Amapá. 260 $aMacapá: EMBRAPA-UEPAT de Macapá$c1982 300 $a3 p. 490 $a(EMBRAPA-UEPAT de Macapá. Pesquisa em andamento, 15). 520 $aO feijão caupi (Vigna unguiculata (L.) Walp) e componente importante nos sistemas de produção local, pois se constitui no alimento básico da população de baixa renda, notadamente, das zonas rurais e periferias dos centros urbanos. Entretanto, a produtividade media e relativamente baixa e não chega a atingir 500kg por hectare. Para tanto deve contribuir o uso inadequado de cultivares, o baixo nível de tecnologia e a baixa fertilidade dos solos amapaenses. 650 $abeans 650 $aBrazil 650 $acowpeas 650 $avarieties 650 $aCompetição de Variedade 650 $aFeijão 650 $aFeijão de Corda 650 $aVariedade 650 $aVigna Unguiculata 653 $aAmapá 653 $aBrasil 653 $aCaupi 653 $aCompetição 653 $aCultivar 653 $aFeijao-de-corda 653 $aFeijoeiro 653 $aRegional 700 1 $aFIGUEIREDO, F. J. C. 700 1 $aFARIAS NETO, J. T. de
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Embrapa Amapá (CPAF-AP) |
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