The continuous timber production over cutting cycles in the Brazilian Amazon depends on volumes of species not harvested in previous cuts.
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
Texto Completo: | http://www.alice.cnptia.embrapa.br/alice/handle/doc/1134706 |
Resumo: | Can heavily logged Amazonian dense forests produce commercial timber for a second harvest under a 25?35-year cutting cycle? To address this question, we evaluated the forest capacity to recover the volume extracted 32 years after heavy logging (90 m3 ha?1) in a 144-ha research area located in the Tapajós National Forest, Brazil (03°18?31? to 03°19?21? S; 54°56?28? to 54°56?15? W). Abundance (number of trees ha?1), basal area (m2 ha?1) and volume (m3 ha?1) were assessed in two censuses, one year before logging (1981) and 32 years after logging (2014) to evaluate the status of the timber stock. Canopy openings caused by logging and silvicultural treatments increased sunlight in the forest and boosted the growth of trees 5?45 cm in DBH. Light-demanding species accounted for most of the increase in density and timber volume in the study area after logging. Our findings indicated that 32 years after the first cut, the forest was not able to replace the volume extracted. Considering the present Brazilian forest management regulations, which allow a logging intensity of 30 m3 ha?1 in a 35-year cutting cycle, this volume could only be harvested if new species not logged in the first cut were included in the new species logging list. |
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The continuous timber production over cutting cycles in the Brazilian Amazon depends on volumes of species not harvested in previous cuts.Timber yieldsAnnual allowable cutSecond cutMadeiraAmazoniaCan heavily logged Amazonian dense forests produce commercial timber for a second harvest under a 25?35-year cutting cycle? To address this question, we evaluated the forest capacity to recover the volume extracted 32 years after heavy logging (90 m3 ha?1) in a 144-ha research area located in the Tapajós National Forest, Brazil (03°18?31? to 03°19?21? S; 54°56?28? to 54°56?15? W). Abundance (number of trees ha?1), basal area (m2 ha?1) and volume (m3 ha?1) were assessed in two censuses, one year before logging (1981) and 32 years after logging (2014) to evaluate the status of the timber stock. Canopy openings caused by logging and silvicultural treatments increased sunlight in the forest and boosted the growth of trees 5?45 cm in DBH. Light-demanding species accounted for most of the increase in density and timber volume in the study area after logging. Our findings indicated that 32 years after the first cut, the forest was not able to replace the volume extracted. Considering the present Brazilian forest management regulations, which allow a logging intensity of 30 m3 ha?1 in a 35-year cutting cycle, this volume could only be harvested if new species not logged in the first cut were included in the new species logging list.TATIANA DA CUNHA CASTRO, UFPA; JOÃO OLEGÁRIO PEREIRA DE CARVALHO, UFRA; GUSTAVO SCHWARTZ, CPATU; JOSÉ NATALINO MACEDO SILVA, UFRA; ADEMIR ROBERTO RUSCHEL, CPATU; LUCAS JOSE MAZZEI DE FREITAS, CPATU; JAQUELINE MACEDO GOMES, UNITINS; ROSEANE DE SIQUEIRA PINTO, UFRA.CASTRO, T. da C.CARVALHO, J. O. P. deSCHWARTZ, G.SILVA, J. N. M.RUSCHEL, A. R.FREITAS, L. J. M. deGOMES, J. M.PINTO, R. de S.2021-09-23T02:14:47Z2021-09-23T02:14:47Z2021-09-222021info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleForest Ecology and Management, v. 490, 119124, 2021.http://www.alice.cnptia.embrapa.br/alice/handle/doc/113470610.1016/j.foreco.2021.119124enginfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPA2021-09-23T02:14:56Zoai:www.alice.cnptia.embrapa.br:doc/1134706Repositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestopendoar:21542021-09-23T02:14:56falseRepositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestcg-riaa@embrapa.bropendoar:21542021-09-23T02:14:56Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
The continuous timber production over cutting cycles in the Brazilian Amazon depends on volumes of species not harvested in previous cuts. |
title |
The continuous timber production over cutting cycles in the Brazilian Amazon depends on volumes of species not harvested in previous cuts. |
spellingShingle |
The continuous timber production over cutting cycles in the Brazilian Amazon depends on volumes of species not harvested in previous cuts. CASTRO, T. da C. Timber yields Annual allowable cut Second cut Madeira Amazonia |
title_short |
The continuous timber production over cutting cycles in the Brazilian Amazon depends on volumes of species not harvested in previous cuts. |
title_full |
The continuous timber production over cutting cycles in the Brazilian Amazon depends on volumes of species not harvested in previous cuts. |
title_fullStr |
The continuous timber production over cutting cycles in the Brazilian Amazon depends on volumes of species not harvested in previous cuts. |
title_full_unstemmed |
The continuous timber production over cutting cycles in the Brazilian Amazon depends on volumes of species not harvested in previous cuts. |
title_sort |
The continuous timber production over cutting cycles in the Brazilian Amazon depends on volumes of species not harvested in previous cuts. |
author |
CASTRO, T. da C. |
author_facet |
CASTRO, T. da C. CARVALHO, J. O. P. de SCHWARTZ, G. SILVA, J. N. M. RUSCHEL, A. R. FREITAS, L. J. M. de GOMES, J. M. PINTO, R. de S. |
author_role |
author |
author2 |
CARVALHO, J. O. P. de SCHWARTZ, G. SILVA, J. N. M. RUSCHEL, A. R. FREITAS, L. J. M. de GOMES, J. M. PINTO, R. de S. |
author2_role |
author author author author author author author |
dc.contributor.none.fl_str_mv |
TATIANA DA CUNHA CASTRO, UFPA; JOÃO OLEGÁRIO PEREIRA DE CARVALHO, UFRA; GUSTAVO SCHWARTZ, CPATU; JOSÉ NATALINO MACEDO SILVA, UFRA; ADEMIR ROBERTO RUSCHEL, CPATU; LUCAS JOSE MAZZEI DE FREITAS, CPATU; JAQUELINE MACEDO GOMES, UNITINS; ROSEANE DE SIQUEIRA PINTO, UFRA. |
dc.contributor.author.fl_str_mv |
CASTRO, T. da C. CARVALHO, J. O. P. de SCHWARTZ, G. SILVA, J. N. M. RUSCHEL, A. R. FREITAS, L. J. M. de GOMES, J. M. PINTO, R. de S. |
dc.subject.por.fl_str_mv |
Timber yields Annual allowable cut Second cut Madeira Amazonia |
topic |
Timber yields Annual allowable cut Second cut Madeira Amazonia |
description |
Can heavily logged Amazonian dense forests produce commercial timber for a second harvest under a 25?35-year cutting cycle? To address this question, we evaluated the forest capacity to recover the volume extracted 32 years after heavy logging (90 m3 ha?1) in a 144-ha research area located in the Tapajós National Forest, Brazil (03°18?31? to 03°19?21? S; 54°56?28? to 54°56?15? W). Abundance (number of trees ha?1), basal area (m2 ha?1) and volume (m3 ha?1) were assessed in two censuses, one year before logging (1981) and 32 years after logging (2014) to evaluate the status of the timber stock. Canopy openings caused by logging and silvicultural treatments increased sunlight in the forest and boosted the growth of trees 5?45 cm in DBH. Light-demanding species accounted for most of the increase in density and timber volume in the study area after logging. Our findings indicated that 32 years after the first cut, the forest was not able to replace the volume extracted. Considering the present Brazilian forest management regulations, which allow a logging intensity of 30 m3 ha?1 in a 35-year cutting cycle, this volume could only be harvested if new species not logged in the first cut were included in the new species logging list. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-09-23T02:14:47Z 2021-09-23T02:14:47Z 2021-09-22 2021 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
Forest Ecology and Management, v. 490, 119124, 2021. http://www.alice.cnptia.embrapa.br/alice/handle/doc/1134706 10.1016/j.foreco.2021.119124 |
identifier_str_mv |
Forest Ecology and Management, v. 490, 119124, 2021. 10.1016/j.foreco.2021.119124 |
url |
http://www.alice.cnptia.embrapa.br/alice/handle/doc/1134706 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
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Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
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EMBRAPA |
institution |
EMBRAPA |
reponame_str |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
collection |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
repository.name.fl_str_mv |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
repository.mail.fl_str_mv |
cg-riaa@embrapa.br |
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1794503509827125248 |