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Registros recuperados : 5 | |
1. | | ALMEIDA, J. M. P.; TRIBUZI, V.; FONSECA, R. D.; OTUKA, A. J. G.; FERREIRA, P. H. D.; MASTELARO, V. R.; BRAJATO, P.; HERNANDES, A. C.; DEV, A.; VOSS, T.; CORREA, D. S.; MENDONÇA, C. R. Femtosecond laser processing of glassy and polymeric matrices containing metals and semiconductor nanostructures. Optical Materials, Amsterdam, v. 35, n. 12, p. 2643-2648, 2013. Biblioteca(s): Embrapa Instrumentação. |
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2. | | OTUKA, A. J. G.; ALMEIDA, J. M. P.; TRIBUZI, V.; CARDOSO, M. R.; HERNANDES, A. C.; CORREA, D. S.; MENDONÇA, C. R. Femtosecond lasers for processing glassy and polymeric materials. Materials Research, São Carlos, v. 112, p. 203-317, 2013. Biblioteca(s): Embrapa Instrumentação. |
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3. | | OTUKA, A. J. G. ALMEIDA, J. M. P. TRIBUZI, V. CARDOSO, M. R. HERNANDES, A. C.; CORREA, D. S.; MENDONÇA, C. R. Femtosecond lasers for processing glassy and polymeric materials. Materials Research, São Carlos, v. 17, n. 2, p. 352-358, 2014. Biblioteca(s): Embrapa Instrumentação. |
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4. | | ALMEIDA, J. M. P.; BONI, L. de; AVANSI, W.; RIBEIRO, C.; LONGO, E.; HERNANDES, A. C.; MENDONÇA, C. R. Generation of copper nanoparticles induced by fs-laser irradiation in borosilicate glass Optics Express, Washington, v. 20, n. 14, p. 15106-15113, 2012. Biblioteca(s): Embrapa Instrumentação. |
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Registros recuperados : 5 | |
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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: |
24/03/2011 |
Data da última atualização: |
11/11/2022 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 1 |
Autoria: |
LIMA, T. T. S.; MIRANDA, I. S.; VASCONCELOS, S. S. |
Afiliação: |
TÂMARA THAIZ SANTANA LIMA, UFRA; IZILDINHA SOUZA MIRANDA, UFRA; STEEL SILVA VASCONCELOS, CPATU. |
Título: |
Effects of water and nutrient availability on fine root growth in eastern Amazonian forest regrowth, Brazil. |
Ano de publicação: |
2010 |
Fonte/Imprenta: |
New Phytologist, v. 187, p. 622-630, 2010. |
DOI: |
10.1111/j.1469-8137.2010.03299.x |
Idioma: |
Inglês |
Conteúdo: |
Fine root dynamics is widely recognized as an important biogeochemical process, but there are few data on ?ne root growth and its response to soil resource availability, especially for tropical forests. We evaluated the response of ?ne root dynamics to altered availability of soil water and nutrients in a 20-yr-old forest regrowth in eastern Amazonia. In one experiment the dry season reduction in soil moisture was alleviated by irrigation. In the other experiment, nutrient supply was reduced by litter removal. We used the ingrowth core technique to measure ?ne root mass growth, length growth, mortality and speci?c root length. Dry-season irrigation had no signi?cant effect on mass and length of live and dead roots, whereas litter removal reduced mass and length of live roots. For both irrigation and litter removal experiments, root growth was signi?cantly greater in the dry season than in the wet season. Increased root growth was associated with decreased soil water availability. However, root growth did not increase in response to nutrient reduction in litter removal plots. Overall, our results suggest that belowground allocation may differ according to the type of soil resource limitation. |
Thesagro: |
Água; Biomassa; Chuva; Floresta; Irrigação; Raiz; Seca; Solo. |
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
Marc: |
LEADER 01913naa a2200253 a 4500 001 1882820 005 2022-11-11 008 2010 bl uuuu u00u1 u #d 024 7 $a10.1111/j.1469-8137.2010.03299.x$2DOI 100 1 $aLIMA, T. T. S. 245 $aEffects of water and nutrient availability on fine root growth in eastern Amazonian forest regrowth, Brazil.$h[electronic resource] 260 $c2010 520 $aFine root dynamics is widely recognized as an important biogeochemical process, but there are few data on ?ne root growth and its response to soil resource availability, especially for tropical forests. We evaluated the response of ?ne root dynamics to altered availability of soil water and nutrients in a 20-yr-old forest regrowth in eastern Amazonia. In one experiment the dry season reduction in soil moisture was alleviated by irrigation. In the other experiment, nutrient supply was reduced by litter removal. We used the ingrowth core technique to measure ?ne root mass growth, length growth, mortality and speci?c root length. Dry-season irrigation had no signi?cant effect on mass and length of live and dead roots, whereas litter removal reduced mass and length of live roots. For both irrigation and litter removal experiments, root growth was signi?cantly greater in the dry season than in the wet season. Increased root growth was associated with decreased soil water availability. However, root growth did not increase in response to nutrient reduction in litter removal plots. Overall, our results suggest that belowground allocation may differ according to the type of soil resource limitation. 650 $aÁgua 650 $aBiomassa 650 $aChuva 650 $aFloresta 650 $aIrrigação 650 $aRaiz 650 $aSeca 650 $aSolo 700 1 $aMIRANDA, I. S. 700 1 $aVASCONCELOS, S. S. 773 $tNew Phytologist$gv. 187, p. 622-630, 2010.
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