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Registro Completo |
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
08/07/2005 |
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Data da última atualização: |
02/12/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
BAKER, T. R.; PHILLIPS, O. L.; MALHI, Y.; ALMEIDA, S.; ARROYO, L.; DI FIORE, A.; ERWIN, T.; HIGUCHI, N.; KILLEEN, T. J.; LAURENCE, S. G.; LAURENCE, W. F.; LEWIS, S. L.; MONTEAGUDO, A.; NEILL, D. A.; NÚNEZ VARGAS, P.; PITMAN, N. C. A.; SILVA, J. N. M.; VÁSQUEZ MARTÍNEZ, R. |
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Afiliação: |
Max-Planck-Institut für Biogeochemie / University of Leeds; University of Leeds; University of Edinburgh; MPEG; Museo Noel Kempff Mercado; New York University; Smithsonian Institution; INPA; Center for Applied Biodiversity Science, Conservation International; Smithsonian Tropical Research Institute; Smithsonian Tropical Research Institute; University of Leeds / University of Edinburgh; Universidad Nacional San Antonio Abad del Cusco / Jardin Botanico de Missouri; Missouri Botanical Garden, c/o Herbario Nacional del Ecuador; Universidad Nacional San Antonio Abad del Cusco; Duke University; JOSÉ NATALINO MACÊDO SILVA, Embrapa Amazônia Oriental; Jardin Botanico de Missouri. |
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Título: |
Increasing biomass in Amazonian forest plots. |
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Ano de publicação: |
2004 |
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Fonte/Imprenta: |
Philosophical Transactions of the Royal Society of London. B, v. 359, n. 1443, p. 353-365, Mar. 2004. |
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Descrição Física: |
il. |
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DOI: |
10.1098/rstb.2003.1422 |
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Idioma: |
Inglês |
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Conteúdo: |
A previous study by Phillips et al. of changes in the biomass of permanent sample plots in Amazonian forests was used to infer the presence of a regional carbon sink. However, these results generated a vigorous debate about sampling and methodological issues. Therefore we present a new analysis of biomass change in old?growth Amazonian forest plots using updated inventory data. We find that across 59 sites, the above?ground dry biomass in trees that are more than 10 cm in diameter (AGB) has increased since plot establishment by 1.22 ± 0.43 Mg per hectare per year (ha?1 yr?1), where 1 ha = 104 m2), or 0.98 ± 0.38 Mg ha?1 yr?1 if individual plot values are weighted by the number of hectare years of monitoring. This significant increase is neither confounded by spatial or temporal variation in wood specific gravity, nor dependent on the allometric equation used to estimate AGB. The conclusion is also robust to uncertainty about diameter measurements for problematic trees: for 34 plots in western Amazon forests a significant increase in AGB is found even with a conservative assumption of zero growth for all trees where diameter measurements were made using optical methods and/or growth rates needed to be estimated following fieldwork. Overall, our results suggest a slightly greater rate of net stand?level change than was reported by Phillips et al. Considering the spatial and temporal scale of sampling and associated studies showing increases in forest growth and stem turnover, the results presented here suggest that the total biomass of these plots has on average increased and that there has been a regional?scale carbon sink in old?growth Amazonian forests during the previous two decades. MenosA previous study by Phillips et al. of changes in the biomass of permanent sample plots in Amazonian forests was used to infer the presence of a regional carbon sink. However, these results generated a vigorous debate about sampling and methodological issues. Therefore we present a new analysis of biomass change in old?growth Amazonian forest plots using updated inventory data. We find that across 59 sites, the above?ground dry biomass in trees that are more than 10 cm in diameter (AGB) has increased since plot establishment by 1.22 ± 0.43 Mg per hectare per year (ha?1 yr?1), where 1 ha = 104 m2), or 0.98 ± 0.38 Mg ha?1 yr?1 if individual plot values are weighted by the number of hectare years of monitoring. This significant increase is neither confounded by spatial or temporal variation in wood specific gravity, nor dependent on the allometric equation used to estimate AGB. The conclusion is also robust to uncertainty about diameter measurements for problematic trees: for 34 plots in western Amazon forests a significant increase in AGB is found even with a conservative assumption of zero growth for all trees where diameter measurements were made using optical methods and/or growth rates needed to be estimated following fieldwork. Overall, our results suggest a slightly greater rate of net stand?level change than was reported by Phillips et al. Considering the spatial and temporal scale of sampling and associated studies showing increases in forest growth and stem turnover, ... Mostrar Tudo |
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Thesagro: |
Biomassa; Carbono; Floresta Tropical. |
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Thesaurus Nal: |
Amazonia. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02798naa a2200397 a 4500
001 1406997
005 2022-12-02
008 2004 bl uuuu u00u1 u #d
024 7 $a10.1098/rstb.2003.1422$2DOI
100 1 $aBAKER, T. R.
245 $aIncreasing biomass in Amazonian forest plots.$h[electronic resource]
260 $c2004
300 $cil.
520 $aA previous study by Phillips et al. of changes in the biomass of permanent sample plots in Amazonian forests was used to infer the presence of a regional carbon sink. However, these results generated a vigorous debate about sampling and methodological issues. Therefore we present a new analysis of biomass change in old?growth Amazonian forest plots using updated inventory data. We find that across 59 sites, the above?ground dry biomass in trees that are more than 10 cm in diameter (AGB) has increased since plot establishment by 1.22 ± 0.43 Mg per hectare per year (ha?1 yr?1), where 1 ha = 104 m2), or 0.98 ± 0.38 Mg ha?1 yr?1 if individual plot values are weighted by the number of hectare years of monitoring. This significant increase is neither confounded by spatial or temporal variation in wood specific gravity, nor dependent on the allometric equation used to estimate AGB. The conclusion is also robust to uncertainty about diameter measurements for problematic trees: for 34 plots in western Amazon forests a significant increase in AGB is found even with a conservative assumption of zero growth for all trees where diameter measurements were made using optical methods and/or growth rates needed to be estimated following fieldwork. Overall, our results suggest a slightly greater rate of net stand?level change than was reported by Phillips et al. Considering the spatial and temporal scale of sampling and associated studies showing increases in forest growth and stem turnover, the results presented here suggest that the total biomass of these plots has on average increased and that there has been a regional?scale carbon sink in old?growth Amazonian forests during the previous two decades.
650 $aAmazonia
650 $aBiomassa
650 $aCarbono
650 $aFloresta Tropical
700 1 $aPHILLIPS, O. L.
700 1 $aMALHI, Y.
700 1 $aALMEIDA, S.
700 1 $aARROYO, L.
700 1 $aDI FIORE, A.
700 1 $aERWIN, T.
700 1 $aHIGUCHI, N.
700 1 $aKILLEEN, T. J.
700 1 $aLAURENCE, S. G.
700 1 $aLAURENCE, W. F.
700 1 $aLEWIS, S. L.
700 1 $aMONTEAGUDO, A.
700 1 $aNEILL, D. A.
700 1 $aNÚNEZ VARGAS, P.
700 1 $aPITMAN, N. C. A.
700 1 $aSILVA, J. N. M.
700 1 $aVÁSQUEZ MARTÍNEZ, R.
773 $tPhilosophical Transactions of the Royal Society of London. B$gv. 359, n. 1443, p. 353-365, Mar. 2004.
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Registro original: |
Embrapa Amazônia Oriental (CPATU) |
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Biblioteca(s): |
Embrapa Rondônia. |
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Data corrente: |
27/11/2012 |
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Data da última atualização: |
28/11/2012 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
CASSARO, J. D.; MENONCIN, G.; MARCOLAN, A. L.; ESPINDULA, M. C.; RAMALHO, A. R. |
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Afiliação: |
JULIANA DARÓS CASSARO, Bolsista do CBP&D/Café Embrapa Rondônia; GIOVANA MENONCIN, Bolsista do CBP&D/Café Embrapa Rondônia; ALAERTO LUIZ MARCOLAN, CPAF-RO; MARCELO CURITIBA ESPINDULA, CPAF-RO; ANDRE ROSTAND RAMALHO, CPAF-RO. |
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Título: |
Alteração da fertilidade do solo cultivado com cafeeiro clonal 'Conilon' submetido a três níveis de adubação NPK. |
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Ano de publicação: |
2011 |
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Fonte/Imprenta: |
In: ENCONTRO DE INICIAÇÃO À PESQUISA DA EMBRAPA RONDÔNIA, 2., 2011, Porto Velho. Anais... Porto Velho: Embrapa Rondônia, 2011. 70p. (Embrapa Rondônia. Documentos, 146). p. 43. |
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Idioma: |
Português |
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Conteúdo: |
Na região norte do estado [Rondônia], onde se localiza o Munícipio de Porto Velho, os solos são, em sua maioria, ácidos, com porcentagem de saturação por alumínio acima de 50 %, de baixa fertilidade química, apresentando valores baixos para soma de bases, capacidade de troca de cátions e saturação por bases. O objetivo deste estudo foi avaliar as alterações na fertilidade do solo cultivado com clones do cafeeiro ?Conilon? submetido à fertilização química com NPK. |
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Palavras-Chave: |
Adubação química; Atributo químico do solo; Coffea canephora Pierre. |
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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/70912/1/43-doc146-2encontroiniciacaoapesquisa-1.pdf
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Marc: |
LEADER 01261nam a2200193 a 4500
001 1940695
005 2012-11-28
008 2011 bl uuuu u00u1 u #d
100 1 $aCASSARO, J. D.
245 $aAlteração da fertilidade do solo cultivado com cafeeiro clonal 'Conilon' submetido a três níveis de adubação NPK.$h[electronic resource]
260 $aIn: ENCONTRO DE INICIAÇÃO À PESQUISA DA EMBRAPA RONDÔNIA, 2., 2011, Porto Velho. Anais... Porto Velho: Embrapa Rondônia, 2011. 70p. (Embrapa Rondônia. Documentos, 146). p. 43.$c2011
520 $aNa região norte do estado [Rondônia], onde se localiza o Munícipio de Porto Velho, os solos são, em sua maioria, ácidos, com porcentagem de saturação por alumínio acima de 50 %, de baixa fertilidade química, apresentando valores baixos para soma de bases, capacidade de troca de cátions e saturação por bases. O objetivo deste estudo foi avaliar as alterações na fertilidade do solo cultivado com clones do cafeeiro ?Conilon? submetido à fertilização química com NPK.
653 $aAdubação química
653 $aAtributo químico do solo
653 $aCoffea canephora Pierre
700 1 $aMENONCIN, G.
700 1 $aMARCOLAN, A. L.
700 1 $aESPINDULA, M. C.
700 1 $aRAMALHO, A. R.
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Embrapa Rondônia (CPAF-RO) |
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