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Registro Completo |
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Biblioteca(s): |
Embrapa Acre. |
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Data corrente: |
16/11/2005 |
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Data da última atualização: |
20/11/2023 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
SILVA, C. S. da; OLIVEIRA, L. C. de. |
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Afiliação: |
Cristiane Soares da Silva, Bolsista Embrapa Acre; LUIS CLAUDIO DE OLIVEIRA, CPAF-Acre. |
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Título: |
Teores de carbono em espécies exploradas em regime de manejo florestal comunitário na Amazônia Ocidental. |
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Ano de publicação: |
2002 |
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Fonte/Imprenta: |
In: SEMINÁRIO DE INICIAÇÃO CIENTÍFICA, 11., 2002, Rio Branco, AC. Anais... Rio Branco: CNPq; PIBIC; Ufac, 2002. |
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Páginas: |
p. 118. |
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Idioma: |
Português |
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Conteúdo: |
Sumidouros de Carbono em florestas maduras mostram-se vulneráveis a alguns fatores como desmatamento, exploração seletiva, aumento da fragmentação e mortalidade causada por efeito borda. Em florestas manejadas, em função da maior produção por área e tempo de residência dos estoques de Carbono, as taxas de incremento de CO2 na atmosfera podem diminuir através da redução do desmatamento, do aumento do florestamento e do uso sustentado da biomassa florestal . Os teores de Carbono exportados pela biomassa na forma de pranchas, raramente são abordados em estudos de dinâmica de florestas, constituindo-se em uma lacuna da pesquisa. |
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Palavras-Chave: |
Acre; Amazonia Occidental; Amazônia Ocidental; Apuleia molaris; Cumaru cetim; Cumaru ferro; Dypterix odorata; Hymenolobium excelsum; Madera tropical; Manejo florestal comunitário; Peltogyne catingae; Projeto de Colonização Pedro Peixoto; Reservorios de carbono; Roxinho; Senador Guiomard (AC); Silvicultura comunitaria; Western Amazon. |
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Thesagro: |
Angelim; Carbono; Floresta tropical; Medição. |
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Thesaurus Nal: |
Carbon sinks; Community forestry; Tropical wood. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/164358/1/11867.pdf
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Marc: |
LEADER 01954nam a2200421 a 4500
001 1503015
005 2023-11-20
008 2002 bl uuuu u00u1 u #d
100 1 $aSILVA, C. S. da
245 $aTeores de carbono em espécies exploradas em regime de manejo florestal comunitário na Amazônia Ocidental.$h[electronic resource]
260 $aIn: SEMINÁRIO DE INICIAÇÃO CIENTÍFICA, 11., 2002, Rio Branco, AC. Anais... Rio Branco: CNPq; PIBIC; Ufac$c2002
300 $ap. 118.
520 $aSumidouros de Carbono em florestas maduras mostram-se vulneráveis a alguns fatores como desmatamento, exploração seletiva, aumento da fragmentação e mortalidade causada por efeito borda. Em florestas manejadas, em função da maior produção por área e tempo de residência dos estoques de Carbono, as taxas de incremento de CO2 na atmosfera podem diminuir através da redução do desmatamento, do aumento do florestamento e do uso sustentado da biomassa florestal . Os teores de Carbono exportados pela biomassa na forma de pranchas, raramente são abordados em estudos de dinâmica de florestas, constituindo-se em uma lacuna da pesquisa.
650 $aCarbon sinks
650 $aCommunity forestry
650 $aTropical wood
650 $aAngelim
650 $aCarbono
650 $aFloresta tropical
650 $aMedição
653 $aAcre
653 $aAmazonia Occidental
653 $aAmazônia Ocidental
653 $aApuleia molaris
653 $aCumaru cetim
653 $aCumaru ferro
653 $aDypterix odorata
653 $aHymenolobium excelsum
653 $aMadera tropical
653 $aManejo florestal comunitário
653 $aPeltogyne catingae
653 $aProjeto de Colonização Pedro Peixoto
653 $aReservorios de carbono
653 $aRoxinho
653 $aSenador Guiomard (AC)
653 $aSilvicultura comunitaria
653 $aWestern Amazon
700 1 $aOLIVEIRA, L. C. de
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Registro original: |
Embrapa Acre (CPAF-AC) |
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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: |
27/01/2020 |
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Data da última atualização: |
24/04/2020 |
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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: |
ALBIERO-JÚNIOR, A.; VENEGAS-GONZÁLEZ, A.; RODRÍGUEZ-CATÓN, M.; OLIVEIRA, J. M.; LONGHI-SANTOS, T.; GALVÃO, F.; GODINHO TEMPONI, L.; BOTOSSO, P. C. |
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Afiliação: |
ALCI ALBIERO-JÚNIOR, USP; ALEJANDRO VENEGAS-GONZÁLEZ, Universidad Mayor; MILAGROS RODRÍGUEZ-CATÓN, Instituto Argentino de Nivología; JULIANO MORALES OLIVEIRA, Universidade do Vale do Rio dos Sinos; TOMAZ LONGHI-SANTOS, UFPR; FRANKLIN GALVÃO, UFPR; LIVIA GODINHO TEMPONI, Universidade Estadual do Oeste Paranaense; PAULO CESAR BOTOSSO, CNPF. |
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Título: |
Edge effects modify the growth dynamics and climate sensitivity of Araucaria angustifolia trees. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Tree-Ring Research, v. 76, n. 1, p. 11-26, 2020. |
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DOI: |
http://dx.doi.org/10.3959/TRR2018-9 |
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Idioma: |
Inglês |
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Conteúdo: |
Edge effects are a major cause of natural dynamics of fragmented forests; however, studies that evaluate edge effects during the lifetime of trees are relatively rare. Through a long-term perspective of tree growth, dendroecology can contribute to a better understanding of the influence of edge effects. In order to frame our interpretation, we raised the following hypotheses: (1) trees located close to a forest edge have lower growth rates compared to trees growing far from edges, and (2) climate sensitivity of trees naturally growing on the forest edge is different from the trees in the interior. This study was conducted in Southern Brazil, where 21 Araucaria angustifolia located 50 m from the edge and 19 individuals located 4000 m from the forest edge were sampled. Dendrochronological study followed the usual procedures and growth patterns were evaluated using basal area increment, specific threshold value of fast and slow growth, and principal components analysis. During the 54 years analyzed, results indicated that the edge effect reduced growth by 30% in diameter increment and wood production of A. angustifolia trees. Regarding the influence of climatic variability on tree growth, we observed that edge effects may exert strong pressure on growth responses to climate in A. angustifolia located on forest edges, making individuals in those environments potentially more sensitive to variations in temperature and rainfall, mainly at warmer times of year. We therefore emphasize the importance of considering edge trees as potential bioindicators of historical environmental changes and forest fragmentation. Future studies should be carried out in other forest types and with different tree species (e.g. pioneer vs. shade-tolerant, trees vs. shrubs) to test the reliability of our results and provide more robust conclusions about this phenomenon. MenosEdge effects are a major cause of natural dynamics of fragmented forests; however, studies that evaluate edge effects during the lifetime of trees are relatively rare. Through a long-term perspective of tree growth, dendroecology can contribute to a better understanding of the influence of edge effects. In order to frame our interpretation, we raised the following hypotheses: (1) trees located close to a forest edge have lower growth rates compared to trees growing far from edges, and (2) climate sensitivity of trees naturally growing on the forest edge is different from the trees in the interior. This study was conducted in Southern Brazil, where 21 Araucaria angustifolia located 50 m from the edge and 19 individuals located 4000 m from the forest edge were sampled. Dendrochronological study followed the usual procedures and growth patterns were evaluated using basal area increment, specific threshold value of fast and slow growth, and principal components analysis. During the 54 years analyzed, results indicated that the edge effect reduced growth by 30% in diameter increment and wood production of A. angustifolia trees. Regarding the influence of climatic variability on tree growth, we observed that edge effects may exert strong pressure on growth responses to climate in A. angustifolia located on forest edges, making individuals in those environments potentially more sensitive to variations in temperature and rainfall, mainly at warmer times of year. We therefore emphasi... Mostrar Tudo |
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Palavras-Chave: |
Basal area increment; Brazilian pine; Dendroecologia; Dendroecology; Forest fragmentation; Mixed Ombrophilous Forest. |
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Thesagro: |
Araucária Angustifólia; Crescimento; Espécie Nativa; Pinheiro do Paraná. |
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Thesaurus NAL: |
Growth rings. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
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Marc: |
LEADER 02937naa a2200349 a 4500
001 2119357
005 2020-04-24
008 2020 bl uuuu u00u1 u #d
024 7 $ahttp://dx.doi.org/10.3959/TRR2018-9$2DOI
100 1 $aALBIERO-JÚNIOR, A.
245 $aEdge effects modify the growth dynamics and climate sensitivity of Araucaria angustifolia trees.$h[electronic resource]
260 $c2020
520 $aEdge effects are a major cause of natural dynamics of fragmented forests; however, studies that evaluate edge effects during the lifetime of trees are relatively rare. Through a long-term perspective of tree growth, dendroecology can contribute to a better understanding of the influence of edge effects. In order to frame our interpretation, we raised the following hypotheses: (1) trees located close to a forest edge have lower growth rates compared to trees growing far from edges, and (2) climate sensitivity of trees naturally growing on the forest edge is different from the trees in the interior. This study was conducted in Southern Brazil, where 21 Araucaria angustifolia located 50 m from the edge and 19 individuals located 4000 m from the forest edge were sampled. Dendrochronological study followed the usual procedures and growth patterns were evaluated using basal area increment, specific threshold value of fast and slow growth, and principal components analysis. During the 54 years analyzed, results indicated that the edge effect reduced growth by 30% in diameter increment and wood production of A. angustifolia trees. Regarding the influence of climatic variability on tree growth, we observed that edge effects may exert strong pressure on growth responses to climate in A. angustifolia located on forest edges, making individuals in those environments potentially more sensitive to variations in temperature and rainfall, mainly at warmer times of year. We therefore emphasize the importance of considering edge trees as potential bioindicators of historical environmental changes and forest fragmentation. Future studies should be carried out in other forest types and with different tree species (e.g. pioneer vs. shade-tolerant, trees vs. shrubs) to test the reliability of our results and provide more robust conclusions about this phenomenon.
650 $aGrowth rings
650 $aAraucária Angustifólia
650 $aCrescimento
650 $aEspécie Nativa
650 $aPinheiro do Paraná
653 $aBasal area increment
653 $aBrazilian pine
653 $aDendroecologia
653 $aDendroecology
653 $aForest fragmentation
653 $aMixed Ombrophilous Forest
700 1 $aVENEGAS-GONZÁLEZ, A.
700 1 $aRODRÍGUEZ-CATÓN, M.
700 1 $aOLIVEIRA, J. M.
700 1 $aLONGHI-SANTOS, T.
700 1 $aGALVÃO, F.
700 1 $aGODINHO TEMPONI, L.
700 1 $aBOTOSSO, P. C.
773 $tTree-Ring Research$gv. 76, n. 1, p. 11-26, 2020.
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