| |
|
|
 | Acesso ao texto completo restrito à biblioteca da Embrapa Florestas. Para informações adicionais entre em contato com cnpf.biblioteca@embrapa.br. |
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Florestas. |
|
Data corrente: |
11/09/2020 |
|
Data da última atualização: |
11/09/2020 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Autoria: |
CURTO, R. De A.; MATTOS, P. P. de; BRAZ, E. M.; CANETTI, A.; PÉLLICO NETTO, S. |
|
Afiliação: |
Rafaella De Angeli Curto, UFRJ; PATRICIA POVOA DE MATTOS, CNPF; EVALDO MUNOZ BRAZ, CNPF; Aline Canetti, Consultora florestal; Sylvio Péllico Netto, UFPR. |
|
Título: |
Effectiveness of competition indices for understanding growth in an overstocked stand. |
|
Ano de publicação: |
2020 |
|
Fonte/Imprenta: |
Forest Ecology and Management , v. 477, 118472, 2020. 11 p. |
|
DOI: |
https://doi.org/10.1016/j.foreco.2020.118472 |
|
Idioma: |
Inglês |
|
Conteúdo: |
The objective of this study was to select and discuss indices to explain competition among trees in an unmanaged stand in order to support decision-making in forest management. The work was carried out in a plantation of Araucaria angustifolia (Bertol.) Kuntze located in a national forest in southern Brazil. The plantation was established in 1946 in 2 × 2 m spacing, with only one thinning that happened sometime between 1970 and 1980. Forty-six sample plots were established using an adaptation of the Prodan method. We tested distance-independent and distance-dependent competition indices that included or excluded crown area variables. An equation was generated to describe the relation between diameter at breast height and crown diameter, since these were highly correlated (r = 0.87); this permitted calculation of the growth space required for the trees in the stand. It is important to carefully choose the variables and competition indices to be tested in each study case. Including crown variables did not improve prediction ability to overcome the performance of the Stage distance-independent index. In general, the distance-independent indices performed better than the distance-dependent ones, even the stand arrangement in our study area was modified through thinning, mortality, and natural regeneration. When the goal is to better understand the ecological significance of a competition index and not only its statistical ability to predict short-term growth, simpler indices are recommended. MenosThe objective of this study was to select and discuss indices to explain competition among trees in an unmanaged stand in order to support decision-making in forest management. The work was carried out in a plantation of Araucaria angustifolia (Bertol.) Kuntze located in a national forest in southern Brazil. The plantation was established in 1946 in 2 × 2 m spacing, with only one thinning that happened sometime between 1970 and 1980. Forty-six sample plots were established using an adaptation of the Prodan method. We tested distance-independent and distance-dependent competition indices that included or excluded crown area variables. An equation was generated to describe the relation between diameter at breast height and crown diameter, since these were highly correlated (r = 0.87); this permitted calculation of the growth space required for the trees in the stand. It is important to carefully choose the variables and competition indices to be tested in each study case. Including crown variables did not improve prediction ability to overcome the performance of the Stage distance-independent index. In general, the distance-independent indices performed better than the distance-dependent ones, even the stand arrangement in our study area was modified through thinning, mortality, and natural regeneration. When the goal is to better understand the ecological significance of a competition index and not only its statistical ability to predict short-term growth, simpler indices are... Mostrar Tudo |
|
Palavras-Chave: |
Growing space; Manejo florestal. |
|
Thesagro: |
Araucária Angustifólia; Crescimento; Espécie Nativa; Pinheiro do Paraná. |
|
Thesaurus Nal: |
Forest management. |
|
Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
|
Marc: |
LEADER 02330naa a2200265 a 4500
001 2124864
005 2020-09-11
008 2020 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.foreco.2020.118472$2DOI
100 1 $aCURTO, R. De A.
245 $aEffectiveness of competition indices for understanding growth in an overstocked stand.$h[electronic resource]
260 $c2020
520 $aThe objective of this study was to select and discuss indices to explain competition among trees in an unmanaged stand in order to support decision-making in forest management. The work was carried out in a plantation of Araucaria angustifolia (Bertol.) Kuntze located in a national forest in southern Brazil. The plantation was established in 1946 in 2 × 2 m spacing, with only one thinning that happened sometime between 1970 and 1980. Forty-six sample plots were established using an adaptation of the Prodan method. We tested distance-independent and distance-dependent competition indices that included or excluded crown area variables. An equation was generated to describe the relation between diameter at breast height and crown diameter, since these were highly correlated (r = 0.87); this permitted calculation of the growth space required for the trees in the stand. It is important to carefully choose the variables and competition indices to be tested in each study case. Including crown variables did not improve prediction ability to overcome the performance of the Stage distance-independent index. In general, the distance-independent indices performed better than the distance-dependent ones, even the stand arrangement in our study area was modified through thinning, mortality, and natural regeneration. When the goal is to better understand the ecological significance of a competition index and not only its statistical ability to predict short-term growth, simpler indices are recommended.
650 $aForest management
650 $aAraucária Angustifólia
650 $aCrescimento
650 $aEspécie Nativa
650 $aPinheiro do Paraná
653 $aGrowing space
653 $aManejo florestal
700 1 $aMATTOS, P. P. de
700 1 $aBRAZ, E. M.
700 1 $aCANETTI, A.
700 1 $aPÉLLICO NETTO, S.
773 $tForest Ecology and Management$gv. 477, 118472, 2020. 11 p.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Florestas (CNPF) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
| Registros recuperados : 22 | |
| 4. |  | CURTO, R. de A.; ZACHOW, R.; BRAZ, E. M.; MATTOS, P. P. de; PÉLLICO NETTO, S. Alternativas para o manejo de povoamentos superestocados de Araucaria angustifolia na Floresta Nacional de Açungui. In: SEMINÁRIO DE PESQUISAS DA FLORESTA NACIONAL DE TRÊS BARRAS, 2., 2015, Três Barras. Anais... Colombo: Embrapa Florestas, 2015. p. 113-115. (Embrapa Florestas. Documentos, 279). Resumo.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Florestas. |
|    |
| 5. | | CURTO, R. De A.; MATTOS, P. P. de; BRAZ, E. M.; ZACHOW, R.; PÉLLICO NETTO, S. A datação cruzada como ferramenta essencial para a detecção de anéis de crescimento ausentes em árvores sob competição. In: SIMPÓSIO NACIONAL DE INVENTÁRIO FLORESTAL, 3., 2014, Manaus. Anais... Brasília, DF: Serviço Florestal Brasileiro, 2014. p. 23. Disponível online. Resumo.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Florestas. |
| |
| 9. | | CURTO, R. De. A.; MATTOS, P. P. de; BRAZ, E. M.; ZACHOW, R.; PÉLLICO NETTO, A. Caracterização da estrutura e desenvolvimento de modelos para quantificação do potencial madeireiro em povoamento não manejado de Araucaria angustifolia. Pesquisa Florestal Brasileira, Colombo, v. 34, n. 80, p. 303-319, out./dez. 2014.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 3 |
| Biblioteca(s): Embrapa Florestas. |
| |
| 10. | | CURTO, R. DE A.; MATTOS, P. P. de; PÉLLICO NETTO, S. Equações de volume para povoamento não manejado de Araucaria angustifolia. In: EVENTO DE INICIAÇÃO CIENTÍFICA DA EMBRAPA FLORESTAS, 12., 2013, Colombo. Anais. Colombo: Embrapa Florestas, 2013. (Embrapa Florestas. Documentos, 253). Editores técnicos: Marcílio José Thomazini, Elenice Fritzsons, Patrícia Raquel Silva, Guilherme Schnell e Schuhli, Denise Jeton Cardoso, Luziane Franciscon. EVINCI. Resumos.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Florestas. |
| |
| 11. | | CURTO, R. De A.; MATTOS, P. P. de; BRAZ, E. M.; ZACHOW, R.; PÉLLICO NETTO, S. Efeito da falta de manejo no crescimento de Araucaria angustifolia (Bert.) O. Ktze. In: CONGRESSO FLORESTAL DE MATO GROSSO, 1.; SIMPÓSIO DE PÓS-GRADUAÇÃO EM CIÊNCIAS AMBIENTAIS E FLORESTAIS, 5.; SEMANA ACADÊMICA DE ENGENHARIA FLORESTAL - UFMT/Sinop, 5., 2015, Sinop. Anais. Sinop: UFMT, 2015. 1 p. Disponível online. Resumo. Seção: Manejo florestal.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Florestas. |
| |
| 16. | | BRAZ, E. M.; BASSO, R. O.; CURTO, R. De A.; MATTOS, P. P. de; SILVA, J. P. Densidade ótima de estradas para a exploração em plano de manejo florestal. In: SEMINÁRIO DE COLHEITA E TRANSPORTE DE MADEIRA, 18., 2018, Ribeirão Preto. Anais. Brasília, DF: Embrapa; Colombo: Embrapa Florestas, 2018. p. 45-49.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Florestas. |
| |
| 17. | | CURTO, R. de A. C.; MATTOS, P. P. de; BRAZ, E. M.; PELLICO NETTO, S.; ZACHOW, R. Density of Araucaria angustifolia wood from overstocked stand. Pesquisa Florestal Brasileira, Colombo, v. 36, n. 85, p. 51-59, jan./mar. 2016.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 3 |
| Biblioteca(s): Embrapa Florestas. |
| |
| 18. | | CURTO, R. de A.; PINTO, M. F.; ARAÚJO, E. J. G. de; WINK, C.; TONINI, H.; LAURO, A. C. Exatidão de métodos para estimativa do volume de árvores em pé em sistema de integração lavoura-pecuária-floresta. Revista Brasileira de Biometria, v. 37, n. 3, p. 324-334, set. 2019.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 3 |
| Biblioteca(s): Embrapa Pecuária Sul. |
| |
| 19. | | CURTO, R. de A.; LAURO, A. C.; TONINI, H.; KOHLER, S. V.; ARAÚJO, E. J. G. de; BIAZATTI, S. C. Cubagem de árvores em pé com dendrômetro óptico em sistema de integração lavoura-pecuária-floresta. Pesquisa Florestal Brasileira, Colombo, v. 39, e201801646, 2019. 11 p.| Biblioteca(s): Embrapa Florestas. |
| |
| 20. | | CURTO, R. De A.; MATTOS, P. P. de; BRAZ, E. M.; PELLICO NETTO, S.; ZACHOW, R.; PORTES, M. C. G. de O. Competition index: a tool to define thinning in stands of Araucaria angustifolia. In: CONGRESO LATINOAMERICANO DE IUFRO, 3., 2013, San José. Bosques, competitividad y territorios sostenibles. San José: CATIE; [S.l.]: IUFRO, 2013. 1 p. IUFROLAT 2013. Disponibilizado online. Resumen.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Florestas. |
| |
| Registros recuperados : 22 | |
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
