Please use this identifier to cite or link to this item: http://ri.ufs.br/jspui/handle/riufs/1047
Document Type: Artigo
Title: Individual biomass and carbon equations for mimosa scabrella benth
Authors: Mello, Anabel Aparecida de
Nutto, Leif
Weber, Karla Simone
Sanquetta, Carlos Roberto
Matos, Jorge Luis Monteiro de
Becker, Gero
Issue Date: 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.
Keywords: Carbon offsets
Forest inventory
Firewood
Modeling
Tree compartments
ISSN: 0037-5330
Publisher / Institution : The Finnish Society of Forest Science - The Finnish Forest Research Institute
Citation: 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: <http://www.metla.fi/silvafennica/full/sf46/sf463333.pdf>. Acesso em: 18 ago. 2014.
License: Copyrights Finnish Society of Forest Science - The Finnish Forest Research Institute
URI: https://ri.ufs.br/handle/riufs/1047
Appears in Collections:DCF - Artigos publicados em periódicos

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