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| Registros recuperados : 138 | |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Florestas. Para informações adicionais entre em contato com cnpf.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
29/07/2008 |
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Data da última atualização: |
25/02/2015 |
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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: |
LISI, C. S.; TOMAZELLO FILHO, M.; BOTOSSO, P. C.; ROIG, F. A.; MARIA, V. R. B.; FERREIRA-FEDELE, L.; VOIGT, A. R. A. |
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Afiliação: |
Claudio Sergio Lisi, USP/ESALQ; Mario Tomazello Filho, USP/ESALQ; Paulo Cesar Botosso, Embrapa Florestas; Fidel Alejandro Roig Instituto Argentino de Nivología Glaciología y Ciencias Ambientales; Vivian Ribeiro Baptista Maria, USP/ESALQ; Ligia Ferreira-Fedele, USP/ESALQ; Regina Aguilar Alessandra Voigt, USP/ESALQ. |
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Título: |
Tree-ring formation, radial increment periodicity, and phenology of tree species from a seasonal semi-deciduous forest in southeast Brazil. |
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Ano de publicação: |
2008 |
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Fonte/Imprenta: |
Iawa Journal, v. 29, n. 2, p. 189-207, 2008. |
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Idioma: |
Inglês |
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Conteúdo: |
Many tropical tree species produce growth rings in response to seasonal environmental factors that influence the activity of the vascular cambium. We applied the following methods to analyze the annual nature of treering formation of 24 tree species from a seasonal semi-deciduous forest of southeast Brazil: describing wood anatomy and phenology, counting tree rings after cambium markings, and using permanent dendrometer bands. After 7 years of systematic observations and measurements, we found the following: the trees lost their leaves during the dry season and grew new leaves at the end of the same season; trunk increment dynamics corresponded to seasonal changes in precipitation, with higher increment (active period) during the rainy season (October–April) and lower increment (dormant period) during the dry season (May–September); the number of tree rings formed after injuries to the cambium coincided with the number of years since the extraction of the wood samples. As a result of these observations, it was concluded that most study trees formed one growth ring per year. This suggests that tree species from the seasonal semi-deciduous forests of Brazil have an annual cycle of wood formation. Therefore, these trees have potential for use in future studies of tree age and radial growth rates, as well as to infer ecological and regional climatic conditions. These future studies can provide important information for the management and conservation of these endangered forests. |
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Palavras-Chave: |
Anatomia da madeira; Anéis de crescimento; Atividade cambial; Dendrocronologia. |
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Thesagro: |
Dendrometria; Fenologia. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02321naa a2200265 a 4500
001 1298988
005 2015-02-25
008 2008 bl uuuu u00u1 u #d
100 1 $aLISI, C. S.
245 $aTree-ring formation, radial increment periodicity, and phenology of tree species from a seasonal semi-deciduous forest in southeast Brazil.$h[electronic resource]
260 $c2008
520 $aMany tropical tree species produce growth rings in response to seasonal environmental factors that influence the activity of the vascular cambium. We applied the following methods to analyze the annual nature of treering formation of 24 tree species from a seasonal semi-deciduous forest of southeast Brazil: describing wood anatomy and phenology, counting tree rings after cambium markings, and using permanent dendrometer bands. After 7 years of systematic observations and measurements, we found the following: the trees lost their leaves during the dry season and grew new leaves at the end of the same season; trunk increment dynamics corresponded to seasonal changes in precipitation, with higher increment (active period) during the rainy season (October–April) and lower increment (dormant period) during the dry season (May–September); the number of tree rings formed after injuries to the cambium coincided with the number of years since the extraction of the wood samples. As a result of these observations, it was concluded that most study trees formed one growth ring per year. This suggests that tree species from the seasonal semi-deciduous forests of Brazil have an annual cycle of wood formation. Therefore, these trees have potential for use in future studies of tree age and radial growth rates, as well as to infer ecological and regional climatic conditions. These future studies can provide important information for the management and conservation of these endangered forests.
650 $aDendrometria
650 $aFenologia
653 $aAnatomia da madeira
653 $aAnéis de crescimento
653 $aAtividade cambial
653 $aDendrocronologia
700 1 $aTOMAZELLO FILHO, M.
700 1 $aBOTOSSO, P. C.
700 1 $aROIG, F. A.
700 1 $aMARIA, V. R. B.
700 1 $aFERREIRA-FEDELE, L.
700 1 $aVOIGT, A. R. A
773 $tIawa Journal$gv. 29, n. 2, p. 189-207, 2008.
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