Data/hora: 23/06/2024 14:04:41

Biblioteca(s): | Embrapa Amazônia Oriental.
Data corrente: | 23/03/1999
Data da última atualização: | 05/07/2022
Autoria: | SILVA, J. N. M.; CARVALHO, J. O. P. de; LOPES, J. do C. A.; OLIVEIRA, R. P. de; OLIVEIRA, L. C. de.
Afiliação: | JOSÉ NATALINO MACÊDO SILVA, Embrapa Amazônia Oriental; JOAO OLEGARIO PEREIRA DE CARVALHO, CPATU; JOSE DO CARMO ALVES LOPES, CPATU; RAIMUNDO PARENTE DE OLIVEIRA, CPATU; L. C. DE OLIVEIRA, FCAP.
Título: | Growth and yield studies in the Tapajos region, central brazilian Amazon.
Ano de publicação: | 1996
Fonte/Imprenta: | Commonwealth Forestry Review, v. 75, n. 4, p. 325-329, Dec. 1996.
Descrição Física: | il.
Idioma: | Inglês
Conteúdo: | Growth and yield plots have been monitored in the Tapajós region, Pará State, Brazil, since 1981 in four research sites: unlogged primary forest, two areas logged 7 and 13 years before the last assessment, and a secondary forest ca. 50 years old. Diameter increment, mortality and volume increment in these sites are reported. Growth responses were investigated in relation to crown illumination and ecological guild of species. Irrespective of ecological guild, the amount of light received by crowns appeared to produce significant differences in tree growth. A hierarchy of growth rates was observed: rates of diameter increment of intolerant species > tolerant canopy species > understorey tolerant species. Mortality rates were higher for weed species in all study areas except in secondary forest. At this site understorey tolerant species showed higher mortality rates, folio-wed by weed species. Average annual volume increment ranged from 1.6 m' ha-' yr.' in primary unlogged forest to 4.8 m%a-' yr-l in primary logged forest. Commercial species produced just over 1 m3 ha-l yr.' in the logged stands. Establishing cutting cycles in the Tapajós region and other similar sites must have regard to these low increment rates.
Palavras-Chave: | Brasil; Desenvolvimento; Development; Diameter increment; Incremento do diametro; Pará; Região do Tapajós; Taxa de mortalidade.
Thesagro: | Essência Florestal.
Thesaurus Nal: | Amazonia; forest trees; mortality.
Categoria do assunto: | K Ciência Florestal e Produtos de Origem Vegetal
Registro original: | Embrapa Amazônia Oriental (CPATU)
Exemplares: | CPATU - (3244-1) - UPC - AP - PP - 634.905 - C1 - 042 - DIS