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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
20/07/1999 |
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Data da última atualização: |
08/09/2021 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
SOUSA, F. B. de; ARAUJO FILHO, J. A. de; SILVA, N. L. da. |
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Afiliação: |
CNPC; CNPC; CNPC. |
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Título: |
Parâmetros agronômicos de oito genótipos de leucena - ano II. |
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Ano de publicação: |
1998 |
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Fonte/Imprenta: |
In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 35., 1998, Botucatu. Anais... Botucatu: Sociedade Brasileira de Zootecnia, 1998. v. 2. p. 448-449. |
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Idioma: |
Português |
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Conteúdo: |
O trabalho foi conduzido na Embrapa Caprinos em Sobral, Ceara e teve como objetivo avaliar os parametros de producao de materia seca comestivel, proteina bruta total, fibra em detergente neutro, fibra em detergente acido, lignina e digestibilidade in vitro da materia seca de oito genotipos de leucena. O experimento foi instalado em fevereiro de 1995 em um delineamento de blocos ao acaso com quatro repeticoes e oito tratamentos. No segundo ano de avaliacao foram realizados tres cortes na epoca chuvosa e um corte na epoca seca. A analise de variancia mostrou que houve diferenca estatistica (P<0,05) entre genotipos para materia seca comestivel e parametros de qualidade. |
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Palavras-Chave: |
Brasil; Ceara; Edible dry matter; Leucena; Materia seca comestivel. |
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Thesagro: |
Composição Química; Digestibilidade; Leucaena. |
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Thesaurus Nal: |
Brazil; chemical composition; digestibility. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/45307/1/RAC-Parametros-agronomicos.pdf
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Marc: |
LEADER 01529nam a2200265 a 4500
001 1515156
005 2021-09-08
008 1998 bl uuuu u00u1 u #d
100 1 $aSOUSA, F. B. de
245 $aParâmetros agronômicos de oito genótipos de leucena - ano II.$h[electronic resource]
260 $aIn: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 35., 1998, Botucatu. Anais... Botucatu: Sociedade Brasileira de Zootecnia, 1998. v. 2. p. 448-449.$c1998
520 $aO trabalho foi conduzido na Embrapa Caprinos em Sobral, Ceara e teve como objetivo avaliar os parametros de producao de materia seca comestivel, proteina bruta total, fibra em detergente neutro, fibra em detergente acido, lignina e digestibilidade in vitro da materia seca de oito genotipos de leucena. O experimento foi instalado em fevereiro de 1995 em um delineamento de blocos ao acaso com quatro repeticoes e oito tratamentos. No segundo ano de avaliacao foram realizados tres cortes na epoca chuvosa e um corte na epoca seca. A analise de variancia mostrou que houve diferenca estatistica (P<0,05) entre genotipos para materia seca comestivel e parametros de qualidade.
650 $aBrazil
650 $achemical composition
650 $adigestibility
650 $aComposição Química
650 $aDigestibilidade
650 $aLeucaena
653 $aBrasil
653 $aCeara
653 $aEdible dry matter
653 $aLeucena
653 $aMateria seca comestivel
700 1 $aARAUJO FILHO, J. A. de
700 1 $aSILVA, N. L. da
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Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
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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: |
21/08/2006 |
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Data da última atualização: |
28/04/2022 |
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Autoria: |
PHILLIPS, O. L.; BAKER, T. R.; ARROYO, L.; HIGUCHI, N.; KILLEEN, T. J.; LAURENCE, W. F.; LEWIS, S. L.; LLOYD, J.; MALHI, Y.; MONTEAGUDO, A.; NEILL, D. A.; VARGAS, P. N.; SILVA, J. N. M.; TERBORGH, J.; MARTÍNEZ, R. V.; ALEXIADES, M.; ALMEIDA, S.; BROWN, S.; CHAVES, J.; COMISKEY, J. A.; CZIMCZIK, C. I.; DI FIORE, A.; ERWIN, T.; KUEBLER, C.; LAURANCE, S. G.; NASCIMENTO, H. E. M.; OLIVIER, J.; PALACIOS, W.; PATIÑO, S.; PITMAN, N. C. A.; QUESADA, C. A.; SALDIAS, M.; LEZAMA, A. T.; VINCETI, B. |
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Afiliação: |
JOSÉ NATALINO MACEDO SILVA, CPATU. |
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Título: |
Pattern and process in Amazon tree turnover, 1976-2001. |
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Ano de publicação: |
2004 |
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Fonte/Imprenta: |
Philippine Transactions of Royal Society of London. B, v. 359, n. 1443, p. 381-407, 2004. |
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Idioma: |
Inglês |
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Conteúdo: |
Previous work has shown that tree turnover, tree biomass and large liana densities have increased in mature tropical forest plots in the late twentieth century. These results point to a concerted shift in forest ecological processes that may already be having significant impacts on terrestrial carbon stocks, fluxes and biodiversity. However, the findings have proved controversial, partly because a rather limited number of permanent plots have been monitored for rather short periods. The aim of this paper is to characterize regional-scale patterns of 'tree turnover' (the rate with which trees die and recruit into a population) by using improved datasets now available for Amazonia that span the past 25 years. Specifically, we assess whether concerted changes in turnover are occurring, and if so whether they are general throughout the Amazon or restricted to one region or environmental zone. In addition, we ask whether they are driven by changes in recruitment, mortality or both. We find that: (i) trees 10 cm or more in diameter recruit and die twice as fast on the richer soils of southern and western Amazonia than on the poorer soils of eastern and central Amazonia; (ii) turnover rates have increased throughout Amazonia over the past two decades; (iii) mortality and recruitment rates have both increased significantly in every region and environmental zone, with the exception of mortality in eastern Amazonia; (iv) recruitment rates have consistently exceeded mortality rates; (v) absolute increases in recruitment and mortality rates are greatest in western Amazonian sites; and (vi) mortality appears to be lagging recruitment at regional scales. These spatial patterns and temporal trends are not caused by obvious artefacts in the data or the analyses. The trends cannot be directly driven by a mortality driver (such as increased drought or fragmentation-related death) because the biomass in these forests has simultaneously increased. Our findings therefore indicate that long-acting and widespread environmental changes are stimulating the growth and productivity of Amazon forests. MenosPrevious work has shown that tree turnover, tree biomass and large liana densities have increased in mature tropical forest plots in the late twentieth century. These results point to a concerted shift in forest ecological processes that may already be having significant impacts on terrestrial carbon stocks, fluxes and biodiversity. However, the findings have proved controversial, partly because a rather limited number of permanent plots have been monitored for rather short periods. The aim of this paper is to characterize regional-scale patterns of 'tree turnover' (the rate with which trees die and recruit into a population) by using improved datasets now available for Amazonia that span the past 25 years. Specifically, we assess whether concerted changes in turnover are occurring, and if so whether they are general throughout the Amazon or restricted to one region or environmental zone. In addition, we ask whether they are driven by changes in recruitment, mortality or both. We find that: (i) trees 10 cm or more in diameter recruit and die twice as fast on the richer soils of southern and western Amazonia than on the poorer soils of eastern and central Amazonia; (ii) turnover rates have increased throughout Amazonia over the past two decades; (iii) mortality and recruitment rates have both increased significantly in every region and environmental zone, with the exception of mortality in eastern Amazonia; (iv) recruitment rates have consistently exceeded mortality rates; (v... Mostrar Tudo |
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Palavras-Chave: |
Brasil. |
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Thesagro: |
Desenvolvimento Florestal; Produção Florestal. |
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Thesaurus NAL: |
Amazonia. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 03604naa a2200565 a 4500
001 1408524
005 2022-04-28
008 2004 bl uuuu u00u1 u #d
100 1 $aPHILLIPS, O. L.
245 $aPattern and process in Amazon tree turnover, 1976-2001.$h[electronic resource]
260 $c2004
520 $aPrevious work has shown that tree turnover, tree biomass and large liana densities have increased in mature tropical forest plots in the late twentieth century. These results point to a concerted shift in forest ecological processes that may already be having significant impacts on terrestrial carbon stocks, fluxes and biodiversity. However, the findings have proved controversial, partly because a rather limited number of permanent plots have been monitored for rather short periods. The aim of this paper is to characterize regional-scale patterns of 'tree turnover' (the rate with which trees die and recruit into a population) by using improved datasets now available for Amazonia that span the past 25 years. Specifically, we assess whether concerted changes in turnover are occurring, and if so whether they are general throughout the Amazon or restricted to one region or environmental zone. In addition, we ask whether they are driven by changes in recruitment, mortality or both. We find that: (i) trees 10 cm or more in diameter recruit and die twice as fast on the richer soils of southern and western Amazonia than on the poorer soils of eastern and central Amazonia; (ii) turnover rates have increased throughout Amazonia over the past two decades; (iii) mortality and recruitment rates have both increased significantly in every region and environmental zone, with the exception of mortality in eastern Amazonia; (iv) recruitment rates have consistently exceeded mortality rates; (v) absolute increases in recruitment and mortality rates are greatest in western Amazonian sites; and (vi) mortality appears to be lagging recruitment at regional scales. These spatial patterns and temporal trends are not caused by obvious artefacts in the data or the analyses. The trends cannot be directly driven by a mortality driver (such as increased drought or fragmentation-related death) because the biomass in these forests has simultaneously increased. Our findings therefore indicate that long-acting and widespread environmental changes are stimulating the growth and productivity of Amazon forests.
650 $aAmazonia
650 $aDesenvolvimento Florestal
650 $aProdução Florestal
653 $aBrasil
700 1 $aBAKER, T. R.
700 1 $aARROYO, L.
700 1 $aHIGUCHI, N.
700 1 $aKILLEEN, T. J.
700 1 $aLAURENCE, W. F.
700 1 $aLEWIS, S. L.
700 1 $aLLOYD, J.
700 1 $aMALHI, Y.
700 1 $aMONTEAGUDO, A.
700 1 $aNEILL, D. A.
700 1 $aVARGAS, P. N.
700 1 $aSILVA, J. N. M.
700 1 $aTERBORGH, J.
700 1 $aMARTÍNEZ, R. V.
700 1 $aALEXIADES, M.
700 1 $aALMEIDA, S.
700 1 $aBROWN, S.
700 1 $aCHAVES, J.
700 1 $aCOMISKEY, J. A.
700 1 $aCZIMCZIK, C. I.
700 1 $aDI FIORE, A.
700 1 $aERWIN, T.
700 1 $aKUEBLER, C.
700 1 $aLAURANCE, S. G.
700 1 $aNASCIMENTO, H. E. M.
700 1 $aOLIVIER, J.
700 1 $aPALACIOS, W.
700 1 $aPATIÑO, S.
700 1 $aPITMAN, N. C. A.
700 1 $aQUESADA, C. A.
700 1 $aSALDIAS, M.
700 1 $aLEZAMA, A. T.
700 1 $aVINCETI, B.
773 $tPhilippine Transactions of Royal Society of London. B$gv. 359, n. 1443, p. 381-407, 2004.
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