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Registro Completo |
Biblioteca(s): |
Embrapa Florestas. |
Data corrente: |
28/05/2013 |
Data da última atualização: |
19/02/2015 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
LACERDA, A. E. B. de; NIMMO, E. R.; SEBBENN, A. M. |
Afiliação: |
ANDRE EDUARDO BISCAIA DE LACERDA, CNPF; EVELYN ROBERTA NIMMO, University of Manitoba; ALEXANDRE MAGNO SEBBENN, INSTITUTO FLORESTAL DE SÃO PAULO. |
Título: |
Modeling the long-term impacts of logging on genetic diversity and demography of Hymenaea courbaril. |
Ano de publicação: |
2013 |
Fonte/Imprenta: |
Forest Science, v. 59, n. 1, p. 15-26, 2013. |
Idioma: |
Inglês |
Conteúdo: |
Although selective logging is a common practice for timber production in the Brazilian Amazon, very little is known about its impacts on genetic diversity and demography of the harvested species. This study explores the sustainability of current forest management systems in the Brazilian Amazon by modeling harvesting cycles and examining the impacts on the genetic diversity and demography of the highly valued species Hymenaea courbaril. Using extensive field data, we introduced a two-step modeling procedure for EcoGene software that allowed us to identify optimal felling cycles that were later used for testing and defining sustainable logging parameters. The results show that logging cycles for H. courbaril should be approximately of 110 years, as opposed to the 30-year cycle currently used in Brazil, and harvesting levels should consider a combination of larger minimum cutting diameters (75–100 cm) and lower logging intensities (10–50%). We conclude that current practices in Brazil (30-year cycle, logging intensities of 90%, and minimum cutting diameters of 50 cm) are unsustainable for H. courbaril and that the current practice of using general logging prescriptions for all species does not deliver sustainable forest management in the Amazon. Brazilian forest harvesting regulations need to move toward species-specific prescriptions to ensure real sustainability in the long term. |
Palavras-Chave: |
Árvore tropical; Diversidade genética; Microssatélite. |
Thesagro: |
Hymenaea Courbaril. |
Categoria do assunto: |
-- |
Marc: |
LEADER 02002naa a2200193 a 4500 001 1958990 005 2015-02-19 008 2013 bl uuuu u00u1 u #d 100 1 $aLACERDA, A. E. B. de 245 $aModeling the long-term impacts of logging on genetic diversity and demography of Hymenaea courbaril.$h[electronic resource] 260 $c2013 520 $aAlthough selective logging is a common practice for timber production in the Brazilian Amazon, very little is known about its impacts on genetic diversity and demography of the harvested species. This study explores the sustainability of current forest management systems in the Brazilian Amazon by modeling harvesting cycles and examining the impacts on the genetic diversity and demography of the highly valued species Hymenaea courbaril. Using extensive field data, we introduced a two-step modeling procedure for EcoGene software that allowed us to identify optimal felling cycles that were later used for testing and defining sustainable logging parameters. The results show that logging cycles for H. courbaril should be approximately of 110 years, as opposed to the 30-year cycle currently used in Brazil, and harvesting levels should consider a combination of larger minimum cutting diameters (75–100 cm) and lower logging intensities (10–50%). We conclude that current practices in Brazil (30-year cycle, logging intensities of 90%, and minimum cutting diameters of 50 cm) are unsustainable for H. courbaril and that the current practice of using general logging prescriptions for all species does not deliver sustainable forest management in the Amazon. Brazilian forest harvesting regulations need to move toward species-specific prescriptions to ensure real sustainability in the long term. 650 $aHymenaea Courbaril 653 $aÁrvore tropical 653 $aDiversidade genética 653 $aMicrossatélite 700 1 $aNIMMO, E. R. 700 1 $aSEBBENN, A. M. 773 $tForest Science$gv. 59, n. 1, p. 15-26, 2013.
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Registros recuperados : 74 | |
21. | | NIMMO, E. R.; CARVALHO, A. I. de; LAVERDI, R.; LACERDA, A. E. B. de. Conhecimento, memória e história: uma visão transdisciplinar sobre os sistemas tradicionais e agroecológicos de erva-mate. Colombo: Embrapa Florestas, 2022. 25 p. (Embrapa Florestas. Documentos, 373). Selo ODS 2, 8, 10, 11, 12, 15, 16 e 17.Biblioteca(s): Embrapa Florestas. |
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22. | | LACERDA, A. E. B. de; RADOMSKI, M. I.; TYMUS, J. R. C. Forest stewardship for restoration: integrating grassroots initiatives into landscape approaches. Pesquisa Florestal Brasileira, Colombo, v. 39, (nesp), e201902043, 2019. p. 631. Edição especial dos resumos do IUFRO World Congress, 25., 2019, Curitiba.Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Florestas. |
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39. | | CARNEIRO, F. S.; LACERDA, A. E. B. de; LEMES, M. R.; GRIBEL, R.; KANASHIRO, M.; SEBBENN, A. M. Mendelian inheritance, linkage and genotypic disequilibrium in microsatellite loci isolated from Hymenaea courbaril (Leguminosae). Genetics and Molecular Research, v. 11, n. 3, p. 1942-1948, 2012.Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
Biblioteca(s): Embrapa Amazônia Oriental; Embrapa Florestas. |
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40. | | RADOMSKI, M. I.; ROSOT, M. A. D.; CARDOSO, D. J.; MARAN, J. C.; LACERDA, A. E. B. de. Regeneração natural de Ilex paraguariensis após a supressão de Merostachys skvortzovii Sendulsky em remanescente de floresta com araucária. In: CONGRESO SUDAMERICANO DE YERBA MATE, 6.; SIMPOSIO INTERNACIONAL DE YERBA MATE Y SALUD, 2., 2014, Montevideo. Memorias. [S.l.]: Grupo Interdisciplinario de Yerba Mate y Salud, 2014. Disponibilizado online. Resumo.Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Florestas. |
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Registros recuperados : 74 | |
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