Data/hora: 05/06/2024 02:28:35

Biblioteca(s): 	Embrapa Amazônia Oriental.	
Data corrente: 	29/11/2023	
Data da última atualização: 	29/11/2023	
Autoria: 	REATEGUI-BETANCOURT, J. L.; FREITAS, L. J. M. de; SANTOS, K. R. B.; BRICEÑO, G.; MATRICARDI, E. A. T.; RUSCHEL, A. R.; FERREIRA, N. C. de F.	
Afiliação: 	JORGE LUIS REATEGUI-BETANCOURT, UNIVERSIDADE DE BRASÍLIA; LUCAS JOSE MAZZEI DE FREITAS, CPATU; KENIA RIBEIRO BRITO SANTOS, UNIVERSIDADE DE BRASÍLIA; GUIDO BRICEÑO, UNIVERSIDADE DE BRASÍLIA; ERALDO APARECIDO TRONDOLI MATRICARDI, UNIVERSIDADE DE BRASÍLIA; ADEMIR ROBERTO RUSCHEL, CPATU; NATÁLIA CÁSSIA DE FARIA FERREIRA, UNIVERSIDADE DE BRASÍLIA.	
Título: 	Timber yield of commercial tree species in the eastern Brazilian Amazon based on 33 years of inventory data.	
Ano de publicação: 	2023	
Fonte/Imprenta: 	Forestry: An International Journal of Forest Research, p. 1-10, 2023. cpad043.	
DOI: 	https://doi.org/10.1093/forestry/cpad043	
Idioma: 	Inglês	
Conteúdo: 	Selective logging in neotropical forests has directly affected the dynamics of tree species, compromising species conservation and timber yield. Sustainable use of logged forests requires new tree recruitment and diameter growth in remaining trees to compensate for trees removed between cutting cycles. This long-term study investigated timber yields in four species groups with differing values (lower, intermediate, high, and mixed) in logged and unlogged forests in the plateau region of the Tapajós River in the eastern Brazilian Amazon. Analysis was based on two size classes: medium and large commercial-sized trees. In both forest types (logged and unlogged), we found relevant tree recruitment and changes in size classes for all value groups. Most of the recruited trees observed during the 33 years of monitoring remained in the medium size class, but they also occurred in the large size class in logged forests. Over the same period, a significant loss of timber yield was seen, resulting from high mortality among the remaining trees in both size classes due to natural processes and the aftereffects of logging. Timber yield was also seen to be influenced by species richness within the group of commercial species, and recruitment and tree diameter growth capacity to counterbalance losses from mortality of the remaining trees after logging had become restricted. Forest timber yield was mainly regulated by light-demanding species, and shade-tolerant species contributed little to timber yield during the first cut. Continuous monitoring of the remaining trees and measures to reduce tree mortality during cutting cycles can encourage growth and reduce losses in stocked trees. Additionally, the national rules for forest management in the Brazilian Amazon need to be improved to achieve long-term management sustainability.	
Palavras-Chave: 	Ree dynamics; Selective logging; Timber volume.	
Thesagro: 	Floresta Tropical; Madeira.	
Thesaurus Nal: 	Forest management; Tropical forests.	
Categoria do assunto: 	K Ciência Florestal e Produtos de Origem Vegetal	
Registro original: 	Embrapa Amazônia Oriental (CPATU)	
Exemplares: 	CPATU - (59143-1) - UPC - AP - DD -  -  -  - DIS