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Registro Completo |
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
20/01/2010 |
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Data da última atualização: |
20/01/2010 |
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Tipo da produção científica: |
Artigo de Divulgação na Mídia |
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Autoria: |
MATTOS, L. M. de. |
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Afiliação: |
LUCIANO MANSOR DE MATTOS, CNPMA. |
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Título: |
Transição produtiva e serviços ambientais: para além do fictício mercado de carbono. |
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Ano de publicação: |
2009 |
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Fonte/Imprenta: |
Site Rumos do Brasil/Responsabilidade Ambiental, 3 de novembro de 2009. Disponível em: |
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Páginas: |
10 p. |
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Idioma: |
Português |
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Thesagro: |
Desenvolvimento Sustentável. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 00491naa a2200133 a 4500
001 1581131
005 2010-01-20
008 2009 bl --- 0-- u #d
100 1 $aMATTOS, L. M. de
245 $aTransição produtiva e serviços ambientais$bpara além do fictício mercado de carbono.
260 $c2009
300 $a10 p.
650 $aDesenvolvimento Sustentável
773 $tSite Rumos do Brasil/Responsabilidade Ambiental, 3 de novembro de 2009. Disponível em: <http://www.rumosdobrasil.org.br>
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Registro original: |
Embrapa Meio Ambiente (CNPMA) |
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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: |
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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Circulação/Nível: |
Internacional - A |
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Autoria: |
FORTINI, L. B.; MULKEY, S. S.; ZARIN, D. J.; VASCONCELOS, S. S.; CARVALHO, C. J. R. de. |
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Afiliação: |
LUCAS B. FORTINI, University of Florida; STEPHEN S. MULKEY, University of Florida; DANIEL J. ZARIN, University of Florida; STEEL S. VASCONCELOS, University of Florida; CLAUDIO JOSE REIS DE CARVALHO, CPATU. |
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Título: |
Drought constraints on leaf gas exchange by Miconia ciliata (Melastomataceae) in the understory of an eastern Amazonian regrowth forest stand. |
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Ano de publicação: |
2003 |
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Fonte/Imprenta: |
American Journal of Botany, v. 90, n. 7, p. 1064-1070, Jul. 2003. |
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Descrição Física: |
il. |
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DOI: |
10.3732/ajb.90.7.1064 |
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Idioma: |
Inglês |
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Conteúdo: |
Analyses of the effects of drought stress on Amazonian regrowth stands are lacking. We measured leaf gas exchange and leaf water potential of Miconia ciliata (Melastomataceae) in a dry-season irrigation experiment in 14-yr-old regrowth. In the dry season, irrigated plants maintained significantly higher leaf water potentials, photosynthetic capacity at light saturation (Amax), stomatal conductance (gs), internal CO2 concentration (Ci), and lower Amax/gs than control plants. The degree of dry-season down-regulation of control plant Amax, along with its fast recovery following rain, reveals the importance of occasional dry-season rains to the carbon budget of M. ciliata. During the wet season, we observed higher Amax for control plants than for plants that had been irrigated during the dry season. We hypothesize that reduced drought constraints on photosynthesis of irrigated plants advanced the flowering and fruiting phenology of irrigated plants into the dry season. Flowers and fruits of control plants developed later, during the wet season, potentially stimulating a compensatory reproductive photosynthesis response in nearby leaves. The relative drought intolerance of M. ciliata may be a deciding factor in its ability to survive through the dynamic successional development of the regrowth stand studied. |
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Palavras-Chave: |
Floresta tripical; Miconia ciliata. |
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Thesagro: |
Fenologia; Floresta Secundaria; Fotossíntese; Melastomataceae. |
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Thesaurus NAL: |
Amazonia. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02189naa a2200277 a 4500
001 1407030
005 2022-12-02
008 2003 bl uuuu u00u1 u #d
024 7 $a10.3732/ajb.90.7.1064$2DOI
100 1 $aFORTINI, L. B.
245 $aDrought constraints on leaf gas exchange by Miconia ciliata (Melastomataceae) in the understory of an eastern Amazonian regrowth forest stand.$h[electronic resource]
260 $c2003
300 $cil.
520 $aAnalyses of the effects of drought stress on Amazonian regrowth stands are lacking. We measured leaf gas exchange and leaf water potential of Miconia ciliata (Melastomataceae) in a dry-season irrigation experiment in 14-yr-old regrowth. In the dry season, irrigated plants maintained significantly higher leaf water potentials, photosynthetic capacity at light saturation (Amax), stomatal conductance (gs), internal CO2 concentration (Ci), and lower Amax/gs than control plants. The degree of dry-season down-regulation of control plant Amax, along with its fast recovery following rain, reveals the importance of occasional dry-season rains to the carbon budget of M. ciliata. During the wet season, we observed higher Amax for control plants than for plants that had been irrigated during the dry season. We hypothesize that reduced drought constraints on photosynthesis of irrigated plants advanced the flowering and fruiting phenology of irrigated plants into the dry season. Flowers and fruits of control plants developed later, during the wet season, potentially stimulating a compensatory reproductive photosynthesis response in nearby leaves. The relative drought intolerance of M. ciliata may be a deciding factor in its ability to survive through the dynamic successional development of the regrowth stand studied.
650 $aAmazonia
650 $aFenologia
650 $aFloresta Secundaria
650 $aFotossíntese
650 $aMelastomataceae
653 $aFloresta tripical
653 $aMiconia ciliata
700 1 $aMULKEY, S. S.
700 1 $aZARIN, D. J.
700 1 $aVASCONCELOS, S. S.
700 1 $aCARVALHO, C. J. R. de
773 $tAmerican Journal of Botany$gv. 90, n. 7, p. 1064-1070, Jul. 2003.
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