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Tipo de Documento: Artigo
Título: Individual biomass and carbon equations for mimosa scabrella benth
Autor(es): Mello, Anabel Aparecida de
Nutto, Leif
Weber, Karla Simone
Sanquetta, Carlos Roberto
Matos, Jorge Luis Monteiro de
Becker, Gero
Data do documento: 2012
Abstract: Mimosa scabrella Benth. is an important native species of southern Brazil widely used for energy and promising for reforestation carbon offsets. Quantification of biomass and carbon stock is valuable for both purposes. From a forest inventory conducted in southern Brazil, data of M. scabrella were analyzed. Thirty sample trees were felled, excavated and weighed in the field and brought to laboratory for biomass and carbon determination. The total aboveground biomass represented 85% of the tree biomass, while roots corresponded to 15%. Correlation matrix of diameter at 1.3 m height (D), tree height (H) versus total and compartment biomass (P) indicated strong association between tree dimensions and biomasses. Five regression models were tested and equations were fitted to data of five biomass compartments and total tree biomass. The best fitting model for total biomass was P = –0.49361 + 0.034865 × D2H whereas for the partial biomass of the compartments was lnP = β0 + β1 × ln(D) + β2 lnH. Carbon concentration was statistically significantly different in foliage than in other compartments. Three approaches of calculating carbon stocks were evaluated and compared to actual data: 1) Estimated total biomass × weighted mean carbon concentration; 2) Estimated partial (compartment) biomass × compartment average carbon concentration; and 3) Carbon regression equations. No statistical difference was detected among them. It was concluded that biomass equations fitted in this study were accurate and useful for fuelwood and carbon estimations.
Palavras-chave: Carbon offsets
Forest inventory
Tree compartments
ISSN: 0037-5330
Instituição/Editora: The Finnish Society of Forest Science - The Finnish Forest Research Institute
Citação: MELLO, A. A. et al. Individual biomass and carbon equations for mimosa scabrella benth.(bracatinga) in southern Brazil. Silva Fennica, Helsinki, v. 46, n. 3, 2012. Disponível em: <>. Acesso em: 18 ago. 2014.
Licença: Copyrights Finnish Society of Forest Science - The Finnish Forest Research Institute
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