Título:	The continuous timber production over cutting cycles in the Brazilian Amazon depends on volumes of species not harvested in previous cuts.
Autoria:	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.
Afiliação:	TATIANA DA CUNHA CASTRO, UNIVERSIDADE FEDERAL DO PARÁ JOÃO OLEGÁRIO PEREIRA DE CARVALHO, UNIVERSIDADE FEDERAL RURAL DA AMAZÔNIA GUSTAVO SCHWARTZ, CPATU JOSÉ NATALINO MACEDO SILVA, UNIVERSIDADE FEDERAL RURAL DA AMAZÔNIA ADEMIR ROBERTO RUSCHEL, CPATU LUCAS JOSE MAZZEI DE FREITAS, CPATU JAQUELINE MACEDO GOMES, UNIVERSIDADE ESTADUAL DO TOCANTINS ROSEANE DE SIQUEIRA PINTO, UNIVERSIDADE FEDERAL RURAL DA AMAZÔNIA.
Ano de publicação:	2021
Referência:	Forest Ecology and Management, v. 490, 119124, 2021.
Conteúdo:	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.
Thesagro:	Madeira
NAL Thesaurus:	Amazonia
Palavras-chave:	Timber yields Annual allowable cut Second cut
Digital Object Identifier:	10.1016/j.foreco.2021.119124
Tipo do material:	Artigo de periódico
Acesso:	openAccess
Aparece nas coleções:	Artigo em periódico indexado (CPATU)