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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. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
08/06/2022 |
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Data da última atualização: |
08/06/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
MATTOS, P. P. de; CURTO, R. de A.; BRAZ, E. M.; NETTO, S. P. |
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Afiliação: |
PATRICIA POVOA DE MATTOS, CNPF; RAFAELLA DE ANGELI CURTO, Federal Rural University of Rio de Janeiro; EVALDO MUNOZ BRAZ, CNPF; SYLVIO PÉLLICO NETTO, Federal University of Paraná. |
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Título: |
How do Araucaria angustifolia trees grow in overstocked stands? |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Dendrochronologia, v. 74, 125976, 2022. |
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Páginas: |
12 p. |
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DOI: |
https://doi.org/10.1016/j.dendro.2022.125976 |
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Idioma: |
Português |
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Conteúdo: |
ABSTRACT. The objective of this study was to evaluate growth along the stem of Araucaria angustifolia (Bertol.) Kuntze trees competing in overstocked stands, in order to identify periods when growth and trunk shape are differentiated during the trees' lifespan. The research was carried out in a planted forest of Araucaria angustifolia established in 1946 in the Açungui National Forest in Campo Largo, Paraná, Brazil, when these trees were 65 years old. One thinning was recorded, at some time between 1970 and 1980. Forty-six trees were selected and divided into three development classes (DC) at 65 years of age; these classes considered diameter at 1.30 m (breast height, dbh) with a range of 20 cm (from 10 cm to 70 cm). In addition to dbh, total tree height, and crown height and diameter were measured in the field. From each tree, 14 disks were removed to analyze growth rings and confirm the age of the stand. Some trees in the smallest DC (10 ≤ dbh < 30 cm) were the product of natural regeneration (younger trees that grew after the initial planting). In 63% of the trees, at least one growth ring was missing at breast height. Missing rings at breast height were more common in trees with smaller dbh and crown diameters. The need for more growing space was observed at different periods during the studied lifespan of the trees from three DCs. It resulted in changes in stems shape from conical to cylindrical. Different growth patterns could be observed during the lives of some trees as they outgrew their competition. MenosABSTRACT. The objective of this study was to evaluate growth along the stem of Araucaria angustifolia (Bertol.) Kuntze trees competing in overstocked stands, in order to identify periods when growth and trunk shape are differentiated during the trees' lifespan. The research was carried out in a planted forest of Araucaria angustifolia established in 1946 in the Açungui National Forest in Campo Largo, Paraná, Brazil, when these trees were 65 years old. One thinning was recorded, at some time between 1970 and 1980. Forty-six trees were selected and divided into three development classes (DC) at 65 years of age; these classes considered diameter at 1.30 m (breast height, dbh) with a range of 20 cm (from 10 cm to 70 cm). In addition to dbh, total tree height, and crown height and diameter were measured in the field. From each tree, 14 disks were removed to analyze growth rings and confirm the age of the stand. Some trees in the smallest DC (10 ≤ dbh < 30 cm) were the product of natural regeneration (younger trees that grew after the initial planting). In 63% of the trees, at least one growth ring was missing at breast height. Missing rings at breast height were more common in trees with smaller dbh and crown diameters. The need for more growing space was observed at different periods during the studied lifespan of the trees from three DCs. It resulted in changes in stems shape from conical to cylindrical. Different growth patterns could be observed during the lives of some... Mostrar Tudo |
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Palavras-Chave: |
Anel de crescimento; Competição; Competition; Haste; Missing ring; Stem analysis; Thinning effect. |
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Thesagro: |
Araucária Angustifólia. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
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Marc: |
LEADER 02320naa a2200277 a 4500
001 2143840
005 2022-06-08
008 2022 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.dendro.2022.125976$2DOI
100 1 $aMATTOS, P. P. de
245 $aHow do Araucaria angustifolia trees grow in overstocked stands?$h[electronic resource]
260 $c2022
300 $a12 p.
520 $aABSTRACT. The objective of this study was to evaluate growth along the stem of Araucaria angustifolia (Bertol.) Kuntze trees competing in overstocked stands, in order to identify periods when growth and trunk shape are differentiated during the trees' lifespan. The research was carried out in a planted forest of Araucaria angustifolia established in 1946 in the Açungui National Forest in Campo Largo, Paraná, Brazil, when these trees were 65 years old. One thinning was recorded, at some time between 1970 and 1980. Forty-six trees were selected and divided into three development classes (DC) at 65 years of age; these classes considered diameter at 1.30 m (breast height, dbh) with a range of 20 cm (from 10 cm to 70 cm). In addition to dbh, total tree height, and crown height and diameter were measured in the field. From each tree, 14 disks were removed to analyze growth rings and confirm the age of the stand. Some trees in the smallest DC (10 ≤ dbh < 30 cm) were the product of natural regeneration (younger trees that grew after the initial planting). In 63% of the trees, at least one growth ring was missing at breast height. Missing rings at breast height were more common in trees with smaller dbh and crown diameters. The need for more growing space was observed at different periods during the studied lifespan of the trees from three DCs. It resulted in changes in stems shape from conical to cylindrical. Different growth patterns could be observed during the lives of some trees as they outgrew their competition.
650 $aAraucária Angustifólia
653 $aAnel de crescimento
653 $aCompetição
653 $aCompetition
653 $aHaste
653 $aMissing ring
653 $aStem analysis
653 $aThinning effect
700 1 $aCURTO, R. de A.
700 1 $aBRAZ, E. M.
700 1 $aNETTO, S. P.
773 $tDendrochronologia$gv. 74, 125976, 2022.
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Registro original: |
Embrapa Florestas (CNPF) |
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Registro Completo
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Biblioteca(s): |
Embrapa Amazônia Ocidental. |
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Data corrente: |
07/04/2016 |
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Data da última atualização: |
07/04/2016 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
RABELING, C.; VERHAAGH, M.; GARCIA, M. V. B. |
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Afiliação: |
MARCOS VINICIUS BASTOS GARCIA, CPAA. |
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Título: |
Diversity and nest density of non-leafcutting, fungus growing ants (Formicidae, Myrmicinae, Attini) in an Amazonian rainforest and an agroforestry system. |
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Ano de publicação: |
2004 |
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Fonte/Imprenta: |
In: INTERNATIONAL COLLOQUIUM ON SOIL ZOOLOGY AND ECOLOGY, 14., 2004, Mont Saint Aignan. Abstracts... Mont Saint Aignan: Université de Rouen, 2004. p. 57. |
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Idioma: |
Inglês |
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Palavras-Chave: |
Agrofloresta; Diversidade; Macrofauna. |
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Thesagro: |
Formiga. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/142158/1/Marcus-Garcia-1.pdf
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Marc: |
LEADER 00669nam a2200169 a 4500
001 2042892
005 2016-04-07
008 2004 bl uuuu u00u1 u #d
100 1 $aRABELING, C.
245 $aDiversity and nest density of non-leafcutting, fungus growing ants (Formicidae, Myrmicinae, Attini) in an Amazonian rainforest and an agroforestry system.
260 $aIn: INTERNATIONAL COLLOQUIUM ON SOIL ZOOLOGY AND ECOLOGY, 14., 2004, Mont Saint Aignan. Abstracts... Mont Saint Aignan: Université de Rouen, 2004. p. 57.$c2004
650 $aFormiga
653 $aAgrofloresta
653 $aDiversidade
653 $aMacrofauna
700 1 $aVERHAAGH, M.
700 1 $aGARCIA, M. V. B.
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Embrapa Amazônia Ocidental (CPAA) |
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