Data/hora: 21/06/2024 07:39:39

Biblioteca(s): | Embrapa Pantanal.
Data corrente: | 04/03/1996
Data da última atualização: | 04/04/2017
Autoria: | RYAN, M. G.; MELILLO, J. M.; RICCA, A.
Título: | A comparision of methods for determining proscimate carbon fractions of forest litter.
Ano de publicação: | 1990
Fonte/Imprenta: | Canadian Journal Forest Research, v.20, p.166-171, 1990.
Idioma: | Inglês
Conteúdo: | Ten forest litters with decomposition state varying from 16.6 to 100% weight remaining were partitioned into subsamples; each subsample was analyzed for proximate carbon fractions using  one of two chemical analysis procedures (forage fiber and forest products analyses). Proximate carbon fractions from the simpler forage fiber techniques accurately estimated extractives, cellulose, lignin and acid-hydrolyzed carbohydrates (R2 > 0.83) determined by the more complex forest producys analyses. Decomposition state accounted for most of the residual variance and significantly improved predictive equations for lignin and extractives. The relationship between proximate carbon fractions from the different techniques also varied somewhat among wood, hardwood leaves; however, variations were minor relative to the overall trend. Equations developed can be used to extend data availability for developing and validating decomposition models.
Palavras-Chave: | Comparison; Decomposition; Forest.
Thesagro: | Composição Química; Decomposição; Floresta.
Thesaurus Nal: | chemical analysis.
Categoria do assunto: | --
Registro original: | Embrapa Pantanal (CPAP)
Exemplares: | CPAP - (31131-1) - ADD - SP - PP - SP14728 -  - 14728 - DIS