Data/hora: 09/06/2024 10:25:07

Provedor de dados: | 36
País: | Brazil
Título: | Wood specific gravity of trees and forest types in the southern Peruvian Amazon
Autores: | WOODCOCK,Deborah W.
Data: | 2000-12-01
Ano: | 2000
Palavras-chave: | Wood specific gravity; Tropical forest biomass; Southern Peruvian Amazon.
Resumo: | Estimates of terrestrial biomass depend critically on reliable information about the specific gravity of the wood of forest trees. The study reported on here was carried out in the southern Peruvian Amazon and involved collection of wood samples from trees (70 spp.) in intact forest stands. Results demonstrate the high degree of variability in specific gravity (ovendry weight/green volume) in trees at single locations. Three forest types (swamp, high terrace forest with alluvial soil, and sandy-soil forest) had values close to the average reported for tropical forest woods (.69). Two early successional forest types, which make up as much as 12% of the total vegetated area in this part of the Amazon, had values significantly lower (.40). An increase in specific gravity with increasing age of the tree, which has been reported in some spe cies of tropical-forest woods, is seen in a positive relationship between specific gravity and di ameter for a species prevalent in one plot. Increases in specific gravity with tree and forest age may be significant in estimating changes in carbon stores over time.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672000000400589
Editor: | Instituto Nacional de Pesquisas da Amazônia
Relação: | 10.1590/1809-43922000304599
Formato: | text/html
Fonte: | Acta Amazonica  v.30 n.4 2000
Fonte: | info:eu-repo/semantics/openAccess