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| Registros recuperados : 62 | |
| 32. |  | SILVA, P. de S.; FIGUEIREDO, R. de O.; CUNHA, E. da S.; SCHULER, M.; MARKEWITZ, D.; DAVIDSON, E. A. Influência do uso da terra sobre a qualidade das águas de quatro igarapés na Amazônia Oriental: variabilidade espacial e sazonal de pH, condutividade elétrica, oxigênio dissolvido, temperatura, e turbidez. In: CONGRESSO DE ESTUDANTES E BOLSISTAS DO EXPERIMENTO LBA, 2., 2005, Manaus. Resumos... [S.l.]: LBA, [2005?]. p. 45.| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 33. | | RANGEL-VASCONCELOS, L. G. T.; FIGUEIREDO, R. de O.; SCHULER, M. A. E.; MARKEWITZ, D.; DAVIDSON, E. A. Integration of biogeochemical and hydrological data in pasture and forest covered catchments in Eastern Amazonia. In: SCIENCE TEAM MEETING, 10., 2006, Brasília, DF. Book of Abstracts... Manaus: LBA-ECO, 2006. p. 49.| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 34. | | CARVALHO, C. J. R. de; DAVIDSON, E. A.; SANTOS, T. P. dos; DUTRA, F. C.; SERRÃO, B. de O. Changing enzymatic activities and mycorrhizal infections in a chronosequence of secondary and mature forests of eastern Amazonia. In: CONFERÊNCIA CIENTÍFICA DO LBA, 3., 2004, Brasília, DF. Anais de trabalhos completos. Brasília, DF: LBA, 2004. Resumo 23.1.| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 35. | | MARKEWITZ, D.; FIGUEIREDO, R. de O.; DAVIDSON, E. A.; BUSTAMANTE, M. M. C.; PARRON, L.; RESENDE, J. The chemistry of two streams draining kaolinitic soils. In: CONFERÊNCIA CIENTÍFICA DO LBA, 3., 2004, Brasília, DF. Anais de trabalhos completos. Brasília, DF: LBA, 2004. Plenária 6. Resumo 20.5.| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 36. | | MARKEWITZ, D.; RESENDE, J. C. F.; PARRON, L.; BUSTAMANTE, M.; KLINK, C. A.; FIGUEIREDO, R. de O.; DAVIDSON, E. A. Dissolved rainfall inputs and streamwater outputs in an undisturbed watershed on highly weathered soils in the brazilian cerrado. Hydrological Processes, v. 20, n. 12, p. 2615-2639, Aug. 2006.| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 38. | | FREITAS, J. F. B. de; SÁ, T. D. de A.; ISHIDA, F. Y.; SABÁ, R. T.; DAVIDSON, E. A.; FIGUEIREDO, R. de O. Alterações nas emissões de gases traço em função da substituição do sistema de produção agrícola de corte/queima pelo de corte/trituração/manejo de capoeira. In: SEMINÁRIO DE INICIAÇÃO CIENTÍFICA DA FCAP, 12.; SEMINÁRIO DE INICIAÇÃO CIENTÍFICA DA EMBRAPA AMAZÔNIA ORIENTAL, 6., 2002, Belém, PA. A contribuição do profissional de Ciências Agrárias no uso e conservação da biodiversidade: anais. Belém, PA: FCAP: Embrapa Amazônia Oriental, 2002.| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 39. | | CARVALHO, C. J. R. de; DAVIDSON, E. A.; SANTOS, T. P. dos; FIGUEIREDO, R. de O.; SERRÃO, B. de O.; DUTRA, F. C. Atividade da fosfatase ácida, uréase e micorrizas em uma área de vegetação secundária de Paragominas, Estado do Pará, dois anos após adubação com nitrogênio e fósforo. In: CONFERÊNCIA CIENTÍFICA DO LBA, 3., 2004, Brasília, DF. Anais de trabalhos completos. Brasília, DF: LBA, 2004. Plenária 6. Resumo. Resumo 28.9-P.| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 40. | | SIDDIQUE, I.; VIEIRA, I. C. G.; SCHIMIDT, S.; LAMB, D.; CARVALHO, C. J. R. de; FIGUEIREDO, R. de O.; BLOMBERG, S.; DAVIDSON, E. A. Nitrogen and phosphorus additions negatively affect tree species diversity tropical forest regrowth trajectories. Ecology, v. 91, n. 7, p. 2121-2131, 2010.| Biblioteca(s): Embrapa Amazônia Oriental. |
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| Registros recuperados : 62 | |
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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
|
Biblioteca(s): |
Embrapa Amazônia Oriental. |
|
Data corrente: |
25/06/2013 |
|
Data da última atualização: |
07/11/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
MARKEWITZ, D.; FIGUEIREDO, R. de O.; CARVALHO, C. J. R. de; DAVIDSON, E. A. |
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Afiliação: |
DANIEL MARKEWITZ, Warnell School of Forestry and Natural Resources, The University of Georgia; RICARDO DE OLIVEIRA FIGUEIREDO, CNPMA; CLAUDIO JOSE REIS DE CARVALHO, CPATU; ERIC A. DAVIDSON, The Woods Hole Research Center. |
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Título: |
Soil and tree response to P fertilization in a secondary tropical forest supported by an Oxisol. |
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Ano de publicação: |
2012 |
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Fonte/Imprenta: |
Biology and Fertility of Soils, v. 48, n. 6, p. 665-678, Aug. 2012. |
|
DOI: |
10.1007/s00374-011-0659-9 |
|
Idioma: |
Inglês |
|
Conteúdo: |
Abstract Mature tropical forests are considered to be P limited and to cycle P efficiently. Whether P limitations are significant in younger secondary tropical forests, how- ever, remains largely unexplored. This study evaluated P limitation by observing the P fertilizer response of a natu- rally regenerated 24-year-old forest and its soil. In February 1999, six 20×20-m plots were established in secondary forest in the Brazilian Amazon. After 1 year of pre- treatment tree measurements, 50 kg Pha-1 was applied in January 2000 and again in January 2001. Soil sorption of P was relatively low (~100 micrograms g-1) in the surface 0?20 cm while sorption increased to ~180 micrograms g-1 at 20?50 cm and approached ~500 micrograms g-1 for the 50- to 200-cm layers. Soil P in 0?10 cm, measured as sequentially extractable fractions (resin, HCO3-Pi, NaOH-Pi, NaOH-Po, and 1 M HCl), in- creased shortly after fertilization and could account for nearly all the 50 kg Pha-1 added at each date. During the following 6 years, soil P in fertilized plots declined in all pools other than resin P, and by June 2006, concentrations returned to pre-fertilization levels. Despite the increase in extractable P with fertilization, increased tree growth was not detected from stand age 25 to 31 years. It appears that during secondary forest succession at this site, the forest P cycle was conservative so as to maintain available P at a sufficient concentration to meet forest P demands. |
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Palavras-Chave: |
Fracionamento de fósforo; Limitação de fósforo; Sorção de fósforo. |
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Thesagro: |
Fertilidade do solo; Floresta secundária; Floresta tropical; Fósforo. |
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Thesaurus NAL: |
Amazonia; phosphorus fertilizers; rain forests; secondary forests; soil fertility. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
|
Marc: |
LEADER 02448naa a2200313 a 4500
001 1960562
005 2022-11-07
008 2012 bl uuuu u00u1 u #d
024 7 $a10.1007/s00374-011-0659-9$2DOI
100 1 $aMARKEWITZ, D.
245 $aSoil and tree response to P fertilization in a secondary tropical forest supported by an Oxisol.$h[electronic resource]
260 $c2012
520 $aAbstract Mature tropical forests are considered to be P limited and to cycle P efficiently. Whether P limitations are significant in younger secondary tropical forests, how- ever, remains largely unexplored. This study evaluated P limitation by observing the P fertilizer response of a natu- rally regenerated 24-year-old forest and its soil. In February 1999, six 20×20-m plots were established in secondary forest in the Brazilian Amazon. After 1 year of pre- treatment tree measurements, 50 kg Pha-1 was applied in January 2000 and again in January 2001. Soil sorption of P was relatively low (~100 micrograms g-1) in the surface 0?20 cm while sorption increased to ~180 micrograms g-1 at 20?50 cm and approached ~500 micrograms g-1 for the 50- to 200-cm layers. Soil P in 0?10 cm, measured as sequentially extractable fractions (resin, HCO3-Pi, NaOH-Pi, NaOH-Po, and 1 M HCl), in- creased shortly after fertilization and could account for nearly all the 50 kg Pha-1 added at each date. During the following 6 years, soil P in fertilized plots declined in all pools other than resin P, and by June 2006, concentrations returned to pre-fertilization levels. Despite the increase in extractable P with fertilization, increased tree growth was not detected from stand age 25 to 31 years. It appears that during secondary forest succession at this site, the forest P cycle was conservative so as to maintain available P at a sufficient concentration to meet forest P demands.
650 $aAmazonia
650 $aphosphorus fertilizers
650 $arain forests
650 $asecondary forests
650 $asoil fertility
650 $aFertilidade do solo
650 $aFloresta secundária
650 $aFloresta tropical
650 $aFósforo
653 $aFracionamento de fósforo
653 $aLimitação de fósforo
653 $aSorção de fósforo
700 1 $aFIGUEIREDO, R. de O.
700 1 $aCARVALHO, C. J. R. de
700 1 $aDAVIDSON, E. A.
773 $tBiology and Fertility of Soils$gv. 48, n. 6, p. 665-678, Aug. 2012.
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