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 | Acesso ao texto completo restrito à biblioteca da Embrapa Acre. Para informações adicionais entre em contato com cpafac.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Acre; Embrapa Amapá. |
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Data corrente: |
08/05/2000 |
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Data da última atualização: |
03/07/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
OLIVEIRA, M. V. N. d'. |
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Afiliação: |
Embrapa Acre, Rio Branco, AC. |
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Título: |
Artificial regeneration in gaps and skidding trails after mechanised forest exploitation in Acre, Brazil. |
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Ano de publicação: |
2000 |
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Fonte/Imprenta: |
Forest Ecology and Management, Amsterdam, New York, v. 127, p. 67-76, 2000. |
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Idioma: |
Inglês |
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Conteúdo: |
The natural regeneration of some desirable species under exploitation pressure in Amazon is often very poor or non-existent. The traditional techniques of enrichment planting have presented low performance of the planted seedlings and high costs for its implementation. This study analyzes the first 5 years of growth and survival of five tropical tree species (Bertholletia excelsa, Ceiba pentandra, Torresia acreana, Swietenia macrophylla and Cedrela fissilis) planted in skidding trails and exploitation gaps. The basic planting technique consisted in using the cleared areas after forest harvesting for the establishment of seedlings of species ecologically adapted to the gap environment. The study was carried out in the EMBRAPA-CPAF-ACRE (Agroforestry Research Centre of Acre) in Acre State in West Amazon. The diameter increment varied from 0.30 cm year?1 for Bertholletia to 0.52 cm year?1 for Swietenia and Torresia. After 5 years the height growth was similar for all species around 3.0 m. In the first year Bertholletia presented a high mortality, around 80%, caused by severe predation by rodents. Ceiba also presented a high mortality after the second year of planting probably due the canopy closure. The best survival percentage was presented by Torresia, over 90%. The Meliaceae (Swietenia and Cedrela) species had a similar survival, around 70 to 75%. The Hypsipyla grandella attack was more severe in Cedrela than in Swietenia, but in both cases (9.37 and 31% after 7 and 5 years respectively for Swietenia and Cedrela) was still low when compared with other enrichment plantings. MenosThe natural regeneration of some desirable species under exploitation pressure in Amazon is often very poor or non-existent. The traditional techniques of enrichment planting have presented low performance of the planted seedlings and high costs for its implementation. This study analyzes the first 5 years of growth and survival of five tropical tree species (Bertholletia excelsa, Ceiba pentandra, Torresia acreana, Swietenia macrophylla and Cedrela fissilis) planted in skidding trails and exploitation gaps. The basic planting technique consisted in using the cleared areas after forest harvesting for the establishment of seedlings of species ecologically adapted to the gap environment. The study was carried out in the EMBRAPA-CPAF-ACRE (Agroforestry Research Centre of Acre) in Acre State in West Amazon. The diameter increment varied from 0.30 cm year?1 for Bertholletia to 0.52 cm year?1 for Swietenia and Torresia. After 5 years the height growth was similar for all species around 3.0 m. In the first year Bertholletia presented a high mortality, around 80%, caused by severe predation by rodents. Ceiba also presented a high mortality after the second year of planting probably due the canopy closure. The best survival percentage was presented by Torresia, over 90%. The Meliaceae (Swietenia and Cedrela) species had a similar survival, around 70 to 75%. The Hypsipyla grandella attack was more severe in Cedrela than in Swietenia, but in both cases (9.37 and 31% after 7 and 5 years ... Mostrar Tudo |
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Palavras-Chave: |
Amazônia Ocidental; Castanha do brasil; Cerejeira; Ciencias forestales; Desempeño del crecimiento; Embrapa Acre; Exploração florestal mecanizada; Manejo florestal; Mecanización; Producción de madera; Regeneración artificial; Rio Branco (AC); Sobrevivência de espécies; Torresia acreana. |
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Thesagro: |
Bertholletia excelsa; Castanha do pará; Cedrela fissilis; Cedro; Ceiba pentandra; Essência florestal; Exploração florestal; Fator de crescimento; Floresta; Mogno; Paineira; Regeneração artificial; Silvicultura; Swietenia macrophylla. |
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Thesaurus Nal: |
Artificial regeneration; forest management; Forestry; forests; Growth performance; Mechanization; silviculture; Timber production. |
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Categoria do assunto: |
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K Ciência Florestal e Produtos de Origem Vegetal |
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Marc: |
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Registro original: |
Embrapa Amapá (CPAF-AP) |
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| Registros recuperados : 2 | |
| 1. |  | LAMBERT, E. de S.; ALMEIDA, L. A. de; AGUILA, R. M. del; PIPOLO, A. E.; TOLEDO, J. F. F. de; KASTER, M.; ARIAS, C. A. A.; MEYER, M. C.; KLEPKER, D.; EL-HUSNY, J. C.; GIANLUPPI, V. Cultivar de soja BRS 270RR: descrição, comportamento e indicação para cultivo. In: REUNIÃO DE PESQUISA DE SOJA DA REGIÃO CENTRAL DO BRASIL, 29., 2007, Campo Grande, MS. Resumos... Londrina: Embrapa Soja, 2007. p. 149-150. (Embrapa Soja. Documentos, 287).| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Amazônia Oriental; Embrapa Rondônia. |
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| 2. | | LAMBERT, E. de S.; ALMEIDA, L. A. de; AGUILA, R. M. del; PIPOLO, A. E.; TOLEDO, J. F. F. de; KASTER, M.; ARIAS, C. A. A.; MEYER, M. C.; KLEPKER, D.; EL-HUSNY, J. C.; GIANLUPPI, V. Cultivar de soja BRS 271RR: descrição, comportamento e indicação para cultivo. In: REUNIÃO DE PESQUISA DE SOJA DA REGIÃO CENTRAL DO BRASIL, 29., 2007, Campo Grande, MS. Resumos... Londrina: Embrapa Soja, 2007. p. 151-152. (Embrapa Soja. Documentos, 287). Organizado por Odilon Ferreira Saraiva, Regina Maria Villas Boas de Campos Leite, Simone Ery Grosskopf.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Amazônia Oriental; Embrapa Rondônia. |
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| Registros recuperados : 2 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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