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Registro Completo |
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Biblioteca(s): |
Embrapa Acre. |
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Data corrente: |
01/10/2011 |
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Data da última atualização: |
06/07/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
OLIVEIRA, M. V. N. d'.; ALVARADO, E. C.; SANTOS, J. C.; CARVALHO JR. J. A. |
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Afiliação: |
MARCUS VINICIO NEVES D OLIVEIRA, CPAF-AC; UNIVERSITY OF WASHINGTON; INPE; UNESP. |
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Título: |
Forest natural regeneration and biomass production after slash and burn in a seasonally dry forest in the Southern Brazilian Amazon. |
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Ano de publicação: |
2011 |
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Fonte/Imprenta: |
Forest Ecology and Management, Everleight, v. 261, p. 1490-1498, 2011. |
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ISSN: |
0378-1127 |
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DOI: |
10.1016/j.foreco.2011.01.014 |
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Idioma: |
Inglês |
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Conteúdo: |
This study estimates the aboveground biomass accumulation after forest clearing and slash burning and describes the structure and successional development of the secondary forest in the seasonally dry southern Amazon. The original burn study was conducted in four land clearings in 1997, 1998, and 1999. The size of the clearings varied from 1 to 9 ha. The native forest was felled, allowed to dry for approximately three months and then burned by the end of the dry season. A census was conducted in the central 1-ha forest on each site prior to the area?s felling and burn. The aboveground biomass (AGB) and structure were similar to other primary tropical forests. However, the high density of Cecropia spp. before the forest felling and burn treatment indicates past low intensity disturbances. Seven and eight years after the fire, the fallow forests were still in an early successional stage dominated by Cecropia spp. The four areas had a high biomass accumulation during the studied period, varying from 7.5 to 15.0Mgha?1 year?1. The lower biomass accumulation in one plot was an effect of a higher fire severity, produced by the one-year difference in time between slash and burn of the forest, slowing the natural regeneration of Cecropia spp. The time needed for this forest to recover to the pre-fire AGB levels ranged from 20 to 30 years, assuming the current AGB accumulation rates are maintained. Considering these results, the maintenance of regenerating secondary forests in the Amazon would be a significant contribution to soil and watershed protection, minimizing biodiversity losses and perhaps mitigating climatic changes effects in the region. MenosThis study estimates the aboveground biomass accumulation after forest clearing and slash burning and describes the structure and successional development of the secondary forest in the seasonally dry southern Amazon. The original burn study was conducted in four land clearings in 1997, 1998, and 1999. The size of the clearings varied from 1 to 9 ha. The native forest was felled, allowed to dry for approximately three months and then burned by the end of the dry season. A census was conducted in the central 1-ha forest on each site prior to the area?s felling and burn. The aboveground biomass (AGB) and structure were similar to other primary tropical forests. However, the high density of Cecropia spp. before the forest felling and burn treatment indicates past low intensity disturbances. Seven and eight years after the fire, the fallow forests were still in an early successional stage dominated by Cecropia spp. The four areas had a high biomass accumulation during the studied period, varying from 7.5 to 15.0Mgha?1 year?1. The lower biomass accumulation in one plot was an effect of a higher fire severity, produced by the one-year difference in time between slash and burn of the forest, slowing the natural regeneration of Cecropia spp. The time needed for this forest to recover to the pre-fire AGB levels ranged from 20 to 30 years, assuming the current AGB accumulation rates are maintained. Considering these results, the maintenance of regenerating secondary forests in the Ama... Mostrar Tudo |
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Palavras-Chave: |
Bosques secos; Producción de biomasa; Regeneración natural; Slash-and-burn agriculture. |
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Thesagro: |
Biomassa; Cultivo Migratório; Floresta tropical; Produção; Queimada; Regeneração natural. |
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Thesaurus Nal: |
Biomass production; Dry forests; Natural regeneration; Shifting cultivation. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
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Marc: |
LEADER 02769naa a2200349 a 4500
001 1901976
005 2021-07-06
008 2011 bl uuuu u00u1 u #d
022 $a0378-1127
024 7 $a10.1016/j.foreco.2011.01.014$2DOI
100 1 $aOLIVEIRA, M. V. N. d'.
245 $aForest natural regeneration and biomass production after slash and burn in a seasonally dry forest in the Southern Brazilian Amazon.$h[electronic resource]
260 $c2011
520 $aThis study estimates the aboveground biomass accumulation after forest clearing and slash burning and describes the structure and successional development of the secondary forest in the seasonally dry southern Amazon. The original burn study was conducted in four land clearings in 1997, 1998, and 1999. The size of the clearings varied from 1 to 9 ha. The native forest was felled, allowed to dry for approximately three months and then burned by the end of the dry season. A census was conducted in the central 1-ha forest on each site prior to the area?s felling and burn. The aboveground biomass (AGB) and structure were similar to other primary tropical forests. However, the high density of Cecropia spp. before the forest felling and burn treatment indicates past low intensity disturbances. Seven and eight years after the fire, the fallow forests were still in an early successional stage dominated by Cecropia spp. The four areas had a high biomass accumulation during the studied period, varying from 7.5 to 15.0Mgha?1 year?1. The lower biomass accumulation in one plot was an effect of a higher fire severity, produced by the one-year difference in time between slash and burn of the forest, slowing the natural regeneration of Cecropia spp. The time needed for this forest to recover to the pre-fire AGB levels ranged from 20 to 30 years, assuming the current AGB accumulation rates are maintained. Considering these results, the maintenance of regenerating secondary forests in the Amazon would be a significant contribution to soil and watershed protection, minimizing biodiversity losses and perhaps mitigating climatic changes effects in the region.
650 $aBiomass production
650 $aDry forests
650 $aNatural regeneration
650 $aShifting cultivation
650 $aBiomassa
650 $aCultivo Migratório
650 $aFloresta tropical
650 $aProdução
650 $aQueimada
650 $aRegeneração natural
653 $aBosques secos
653 $aProducción de biomasa
653 $aRegeneración natural
653 $aSlash-and-burn agriculture
700 1 $aALVARADO, E. C.
700 1 $aSANTOS, J. C.
700 1 $aCARVALHO JR. J. A.
773 $tForest Ecology and Management, Everleight$gv. 261, p. 1490-1498, 2011.
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Embrapa Acre (CPAF-AC) |
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| Registros recuperados : 3 | |
| 1. |  | MOSCARDI, M. L.; MARTINS, M. R.; PINHEIRO, D. O.; LEVY, S. M.; ROGGIA, S.; FALLEIROS, A. M. F. Aspectos biológicos de Euschistus heros alimentado com cultivares de soja Bt e resistentes a percevejos. In: SIMPÓSIO DE CONTROLE BIOLÓGICO, 16., 2019, Londrina. Controle biológico: da academia ao campo, rumo à sustentabilidade: anais. Londrina: Sociedade Entomológica do Brasil: Embrapa Soja: Universidade Estadual de Londrina, 2019. 495 p. Organizadores: Adeney de Freitas Bueno, Pedro Manuel Oliveira Janeiro, Michele Potrich, Geraldo Andrade Carvalho. p. 430.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Soja. |
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| 2. | | MOSCARDI, M. L.; SUWA, R. E.; PINHEIRO, D. O.; LEVY, S. M.; ROGGIA, S.; FALLEIROS, A. M. F. Efeitos de cultivares de soja resistentes a percevejos e soja Bt no intestino médio de Euschistus heros. In: SIMPÓSIO DE CONTROLE BIOLÓGICO, 16., 2019, Londrina. Controle biológico: da academia ao campo, rumo à sustentabilidade: anais. Londrina: Sociedade Entomológica do Brasil: Embrapa Soja: Universidade Estadual de Londrina, 2019. 495 p. Organizadores: Adeney de Freitas Bueno, Pedro Manuel Oliveira Janeiro, Michele Potrich, Geraldo Andrade Carvalho. p. 429.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Soja. |
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| 3. | | CUNHA, F.; MOSCARDI, F.; SOSA-GOMEZ, D. R.; PARO, F. E.; NEVES, P. M. O. J.; CASTRO, M. E. B.; MOSCARDI, M. L. Seleção de isolados de vírus e determinação da concentração letal média (CL50) para controle de S. Eridania, S. Cosmioides e S. frugiperda. In: SIMPÓSIO DE CONTROLE BIOLÓGICO, 12., 2011, São Paulo. Mudanças climáticas e sustentabilidade: quebra de paradigmas: anais. São Paulo: Sociedade Entomológica do Brasil, 2011. PT.03.45. 1 CD-ROM. SICONBIOL 2011.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Recursos Genéticos e Biotecnologia; Embrapa Soja. |
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| Registros recuperados : 3 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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