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Registro Completo |
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
14/03/2009 |
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Data da última atualização: |
13/02/2025 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
GROGAN, J.; JENNINGS, S. B.; LANDIS, R. M.; SCHULZE, M.; BAIMA, A. M. V.; LOPES, J. do C. A.; NORGHAUER, J. M.; OLIVEIRA, L. R.; PANTOJA, F.; PINTO, D.; SILVA, J. N. M.; VIDAL, E.; ZIMMERMAN, B. L. |
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Afiliação: |
JAMES GROGAN, INSTITUTO DO HOMEM E MEIO AMBIENTE DA AMAZÔNIA; STEPHEN B. JENNINGS, GLOBAL ADVISOR LIVELIHOOD; R. MATTHEW LANDIS, MIDDLEBURY COLLEGE; MARK SCHULZE, INSTITUTO DO HOMEM E MEIO AMBIENTE DA AMAZÔNIA; ANADILZA M. V. BAIMA, ASSOCIAÇÃO PROFISSIONAL DOS ENGENHEIROS FLORESTAIS DO ESTADO DO PARÁ; JOSE DO CARMO ALVES LOPES, CPATU; JULIAN M. NORGHAUER, UNIVERSITY OF TORONTO; L. ROGÉRIO OLIVEIRA, AGROFLORESTAL DONADONI; FRANK PANTOJA, INSTITUTO DO HOMEM E MEIO AMBIENTE DA AMAZÔNIA; DIANE PINTO, UNIVERSITY OF TORONTO; JOSE NATALINO MACEDO SILVA, CPATU; EDSON VIDAL, INSTITUTO DO HOMEM E MEIO AMBIENTE DA AMAZÔNIA; BARBARA L. ZIMMERMAN, CONSERVATION INTERNATIONAL. |
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Título: |
What loggers leave behind: Impacts on big-leaf mahogany (Swietenia macrophylla) commercial populations and potential for post-logging recovery in the Brazilian Amazon. |
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Ano de publicação: |
2008 |
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Fonte/Imprenta: |
Forest Ecology and Management, v. 255, n. 2, p. 269-281, Mar. 2008. |
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DOI: |
https://doi.org/10.1016/j.foreco.2007.09.048 |
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Idioma: |
Inglês |
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Conteúdo: |
The sustainability of current harvest practices for high-value Meliaceae can be assessed by quantifying logging intensity and projecting growth and survival by post-logging populations over anticipated intervals between harvests. From 100%-area inventories of big-leaf mahogany (Swietenia macrophylla) covering 204 ha or more at eight logged and unlogged forest sites across southern Brazilian Amazonia, we report generally higher landscape-scale densities and smaller population-level mean diameters in eastern forests compared to western forests, where most commercial stocks survive. Density of trees ?20 cm diameter varied by two orders of magnitude and peaked at 1.17 ha?1. Size class frequency distributions appeared unimodal at two high-density sites, but were essentially amodal or flat elsewhere; diameter increment patterns indicate that populations were multi- or all-aged. At two high-density sites, conventional logging removed 93?95% of commercial trees (?45 cm diameter at the time of logging), illegally eliminated 31?47% of sub-merchantable trees, and targeted trees as small as 20 cm diameter. Projected recovery by commercial stems during 30 years after conventional logging represented 9.9?37.5% of initial densities and was highly dependent on initial logging intensity and size class frequency distributions of commercial trees. We simulated post-logging recovery over the same period at all sites according to the 2003 regulatory framework for mahogany in Brazil, which raised the minimum diameter cutting limit to 60 cm and requires retention during the first harvest of 20% of commercial-sized trees. Recovery during 30 years ranged from approximately 0 to 31% over 20% retention densities at seven of eight sites. At only one site where sub-merchantable trees dominated the population did the simulated density of harvestable stems after 30 years exceed initial commercial densities. These results indicate that 80% harvest intensity will not be sustainable over multiple cutting cycles for most populations without silvicultural interventions ensuring establishment and long-term growth of artificial regeneration to augment depleted natural stocks, including repeated tending of outplanted seedlings. Without improved harvest protocols for mahogany in Brazil as explored in this paper, future commercial supplies of this species as well as other high-value tropical timbers are endangered. Rapid changes in the timber industry and land-use in the Amazon are also significant challenges to sustainable management of mahogany. MenosThe sustainability of current harvest practices for high-value Meliaceae can be assessed by quantifying logging intensity and projecting growth and survival by post-logging populations over anticipated intervals between harvests. From 100%-area inventories of big-leaf mahogany (Swietenia macrophylla) covering 204 ha or more at eight logged and unlogged forest sites across southern Brazilian Amazonia, we report generally higher landscape-scale densities and smaller population-level mean diameters in eastern forests compared to western forests, where most commercial stocks survive. Density of trees ?20 cm diameter varied by two orders of magnitude and peaked at 1.17 ha?1. Size class frequency distributions appeared unimodal at two high-density sites, but were essentially amodal or flat elsewhere; diameter increment patterns indicate that populations were multi- or all-aged. At two high-density sites, conventional logging removed 93?95% of commercial trees (?45 cm diameter at the time of logging), illegally eliminated 31?47% of sub-merchantable trees, and targeted trees as small as 20 cm diameter. Projected recovery by commercial stems during 30 years after conventional logging represented 9.9?37.5% of initial densities and was highly dependent on initial logging intensity and size class frequency distributions of commercial trees. We simulated post-logging recovery over the same period at all sites according to the 2003 regulatory framework for mahogany in Brazil, which raised... Mostrar Tudo |
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Palavras-Chave: |
Brasil; População vegetal. |
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Thesagro: |
Floresta Tropical; Legislação; Reflorestamento. |
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Thesaurus Nal: |
Amazonia. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
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Marc: |
LEADER 03642naa a2200349 a 4500
001 1410041
005 2025-02-13
008 2008 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.foreco.2007.09.048$2DOI
100 1 $aGROGAN, J.
245 $aWhat loggers leave behind$bImpacts on big-leaf mahogany (Swietenia macrophylla) commercial populations and potential for post-logging recovery in the Brazilian Amazon.$h[electronic resource]
260 $c2008
520 $aThe sustainability of current harvest practices for high-value Meliaceae can be assessed by quantifying logging intensity and projecting growth and survival by post-logging populations over anticipated intervals between harvests. From 100%-area inventories of big-leaf mahogany (Swietenia macrophylla) covering 204 ha or more at eight logged and unlogged forest sites across southern Brazilian Amazonia, we report generally higher landscape-scale densities and smaller population-level mean diameters in eastern forests compared to western forests, where most commercial stocks survive. Density of trees ?20 cm diameter varied by two orders of magnitude and peaked at 1.17 ha?1. Size class frequency distributions appeared unimodal at two high-density sites, but were essentially amodal or flat elsewhere; diameter increment patterns indicate that populations were multi- or all-aged. At two high-density sites, conventional logging removed 93?95% of commercial trees (?45 cm diameter at the time of logging), illegally eliminated 31?47% of sub-merchantable trees, and targeted trees as small as 20 cm diameter. Projected recovery by commercial stems during 30 years after conventional logging represented 9.9?37.5% of initial densities and was highly dependent on initial logging intensity and size class frequency distributions of commercial trees. We simulated post-logging recovery over the same period at all sites according to the 2003 regulatory framework for mahogany in Brazil, which raised the minimum diameter cutting limit to 60 cm and requires retention during the first harvest of 20% of commercial-sized trees. Recovery during 30 years ranged from approximately 0 to 31% over 20% retention densities at seven of eight sites. At only one site where sub-merchantable trees dominated the population did the simulated density of harvestable stems after 30 years exceed initial commercial densities. These results indicate that 80% harvest intensity will not be sustainable over multiple cutting cycles for most populations without silvicultural interventions ensuring establishment and long-term growth of artificial regeneration to augment depleted natural stocks, including repeated tending of outplanted seedlings. Without improved harvest protocols for mahogany in Brazil as explored in this paper, future commercial supplies of this species as well as other high-value tropical timbers are endangered. Rapid changes in the timber industry and land-use in the Amazon are also significant challenges to sustainable management of mahogany.
650 $aAmazonia
650 $aFloresta Tropical
650 $aLegislação
650 $aReflorestamento
653 $aBrasil
653 $aPopulação vegetal
700 1 $aJENNINGS, S. B.
700 1 $aLANDIS, R. M.
700 1 $aSCHULZE, M.
700 1 $aBAIMA, A. M. V.
700 1 $aLOPES, J. do C. A.
700 1 $aNORGHAUER, J. M.
700 1 $aOLIVEIRA, L. R.
700 1 $aPANTOJA, F.
700 1 $aPINTO, D.
700 1 $aSILVA, J. N. M.
700 1 $aVIDAL, E.
700 1 $aZIMMERMAN, B. L.
773 $tForest Ecology and Management$gv. 255, n. 2, p. 269-281, Mar. 2008.
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Embrapa Amazônia Oriental (CPATU) |
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| Registros recuperados : 21 | |
| 4. |  | SOUZA, L. A. G. de; BEZERRA NETO, E.; SANTOS, C. E. de R. S.; STAMFORD, N. P. Desenvolvimento e nodulação natural de leguminosas arbóreas em solos de Pernambuco. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 42, n. 2, p. 207-217, fev. 2007 Título em inglês: Development and natural nodulation of legume trees in soils from Pernambuco, Brazil.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 5. | | JÚNIOR, C. V. T.; LEITE, J.; SANTOS, C. E. DE R. E S.; RUMJANEK, N. G.; XAVIER, G. R. Nodulação e eficiência de isolados bacterianos obtidos de amendoim. SEMANA CIENTÍFICA JOHANNA DÖBEREINER, 11., 2011, Seropédica. Mudanças climáticas, desastres naturais e prevenção de riscos: resumos... Seropédica: Embrapa Agrobiologia, 2011. 78 p.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Agrobiologia. |
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| 7. | | STAMFORD, N. P.; MOURA, P. M.; LIRA JÚNIOR, M. A.; SANTOS, C. E. de R.; DUENHAS, L. H.; GAVA, C. A. T. Chemical attributes of an Argisoil of the Vale do São Francisco after melon growth with phosphate and potash rocks biofertilizers. Horticultura Brasileira, v. 27, n. 4, p. 447-452, 2009.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
| Biblioteca(s): Embrapa Semiárido. |
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| 8. | | TORRES JÚNIOR, C. V.; SANTOS, C. E. de R. e S.; ARAUJO, K. E. C.; RUMJANEK, N. G.; XAVIER, G. R. Desempenho simbiótico de rizóbios de caupi e Aeschynomene em amendoim tratado com fungicida In: REUNIÃO LATINOAMERICANA DE RIZOBIOLOGIA, 27., 2016, Londrina. Fortalecendo as parcerias Sul-Sul: anais. Curitiba: SBCS-NEPAR, 2016. 308 p. Editado por Mariangle Hungria, Douglas Fabiano Gomes, Arnaldo Colozzi Filho. RELAR 2016. p. 246| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Agrobiologia. |
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| 11. | | ALCANTARA, R. M. C. M. de; XAVIER, G. R.; ZILLI, J. E.; MARTINS, L. M. V.; RUMJANEK, N. G.; FERNANDES JUNIOR, P. I.; LEITE, J.; SILVA JÚNIOR, E. B. da; SANTOS, C. E. de R. e S. Fixação biológica de nitrogênio. In: CARDOSO, M. J.; BASTOS, E. A.; ANDRADE JUNIOR, A. S. de; ATHAYDE SOBRINHO, C. (Ed.). Feijão-Caupi: o produtor pergunta, a Embrapa responde. Brasília, DF: Embrapa, 2017. p. 95-105. (Coleção 500 perguntas, 500 respostas).| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Meio-Norte; Embrapa Semiárido. |
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| 12. | | ALCANTARA, R. M. C. M. de; XAVIER, G. R.; ZILLI, J. E.; MARTINS, L. M. V.; RUMJANEK, N. G.; FERNANDES JUNIOR, P. I.; LEITE, J.; SILVA JÚNIOR, E. B. da; SANTOS, C. E. de R. e S. Fixação biológica de nitrogênio. In: CARDOSO, M. J.; BASTOS, E. A.; ANDRADE JUNIOR, A. S. de; ATHAYDE SOBRINHO, C. (Ed.). Feijão-Caupi: o produtor pergunta, e a Embrapa responde. Brasília, DF: Embrapa, 2017. p. 95-105. (Coleção 500 perguntas, 500 respostas).| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Agrobiologia. |
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| 13. | | SILVA, A. F. da; FREITAS, A. D. S. de; COSTA, T. L.; FERNANDES JUNIOR, P. I.; MARTINS, L. M. V.; SANTOS, C. E. de R. e S.; MENEZES, K. A. S.; SAMPAIO, E. V. de S. B. Biological nitrogen fixation in tropical dry forests with different legume diversity and abundance. Nutrient Cycling in Agroecosystems, v. 107, n. 3, p. 321-334, 2017.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Semiárido. |
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| 15. | | XAVIER, G. R.; MARTINS, L. M. V.; MORGADO, L. B.; ALCÂNTARA, R. M. C. M. de; SANTOS, C. E. de R. S.; ZILLI, J. E.; NEVES, M. C. P.; RUMJANEK, N. G. Incremento da produtividade do feijão caupi com insumo biológico: estratégia para otimizar a nutrição nitrogenada. In: SIMPÓSIO DE INOVAÇÃO E CRIATIVIDADE CIENTÍFICA DA EMBRAPA, 1., 2008, Brasília. Resumos.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Agrobiologia. |
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| 16. | | XAVIER, G. R.; MARTINS, L. M. V.; MORGADO, L. B.; ALCÂNTARA, R. M. C. M. de; SANTOS, C. E. de R. S.; ZILLI, J. E.; NEVES, M. C. P.; RUMJANEK, N. G. Incremento da produtividade do feijão caupi com insumo biológico: estratégia para otimizar a nutrição nitrogenada. In: SIMPÓSIO DE INOVAÇÃO E CRIATIVIDADE CIENTÍFICA DA EMBRAPA, 1., 2008, Brasília. Resumos.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Semiárido. |
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| 17. | | XAVIER, G. R.; RUMJANEK, N. G.; SANTOS, C. E, de R. e S.; FREITAS, A. D. S. de; SILVA, V, S, G. da; SILVA, A. F. da; FERREIRA, J. da S.; STAMFORD, N. P.; MARTINS, L. M. V.; LEITE, J.; MORGADO, L. B.; ALCANTARA, R. M. C. M. de. Agronomic effectiveness of rhizobia strains on cowpea in two consecutive years. Australian Journal of Crop Science, v. 11, n. 9, p. 1154-1160, 2017.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
| Biblioteca(s): Embrapa Agrobiologia; Embrapa Meio-Norte. |
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| 18. | | FREITAS, A. D. S. de; BORGES, W. L.; ANDRADE, M. M. de M.; SAMPAIO, E. V. de S. B.; SANTOS, C. E. de R. e S.; PASSOS, S. R.; XAVIER, G. R.; MULATO, B. M.; LYRA, M. do C. C. P. de. Characteristics of nodule bacteria from Mimosa spp grown in soils of the Brazilian semiarid region. African Journal of Microbiology Research, v. 8, n. 8, p. 788-796, Feb., 2014.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
| Biblioteca(s): Embrapa Agrobiologia; Embrapa Amapá. |
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| 19. | | ESCOBAR, I. E. C.; SILVA, A. F. da; RODRIGUES, D. R.; OLIVEIRA, K. G.; NASCIMENTO, T. R. do; NASCIMENTO, R. C.; CAVALCANTE, M. I. P.; SANTOS, C. E. de R. e S.; FREITAS, A. D. S. de; FERNANDES JUNIOR, P. I. Diversidade de isolados de rizóbios de leguminosas nativas de solos de Caatinga em diferentes estágios de regeneração no estado de Pernambuco. In: SIMPÓSIO DE MUDANÇAS CLIMÁTICAS E DESERTIFICAÇÃO NO SEMIÁRIDO BRASILEIRO, 4., 2015, Petrolina. Experiências e oportunidades para o desenvolvimento. Petrolina: Embrapa Semiárido, 2015. 1 CD-ROM. (Embrapa Semiárido. Documentos, 262).| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Semiárido. |
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| 20. | | JOVINO, R. S.; SILVA, T. R. da; RODRIGUES, R. T.; CARVALHO, J. R. de S.; CUNHA, J. B. de A.; LIMA, L. M. de; SANTOS, R. C. dos; SANTOS, C. E. de R. e S.; RIBEIRO, P. R. de A.; FREITAS, A. D. S. de; MARTINS, L. M. V.; FERNANDES JUNIOR, P. I. Elite Bradyrhizobium strains boost biological nitrogen fixation and peanut yield in tropical drylands. Brazilian Journal of Microbiology, v. 53, p. 1623-1632, 2022.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Algodão; Embrapa Semiárido. |
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| Registros recuperados : 21 | |
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