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Revista Árvore

Print version ISSN 0100-6762On-line version ISSN 1806-9088


COTTA, Michele Karina et al. Biomass quantification and emisson reduction certificates for rubber-cocoa intercropping. Rev. Árvore [online]. 2008, vol.32, n.6, pp.969-978. ISSN 0100-6762.

The objective of this work were to quantify plant biomass and analyze the potential for generating Emission Reduction Certificates (ERCs) of 34-year-old rubber trees (Hevea brasiliensis M.Arg) intercropped with 6-year-old cacao (Theobroma cacao L.). The experiment was conducted on the farms Fazendas Reunidas Vale do Juliana, Igrapiúna, BA. Tree biomass quantification was carried out using the direct destructive method by harvesting five rubber trees and ten cocoa trees, in an area of 2.2 ha. Litter biomass was quantified by collecting material from the ground. Total carbon storage in rubber - cacao intercropping was 91.5 Mg C ha-1. Of this, 84.7 Mg C ha-1 were stored in rubber trees, 5.22 Mg C ha-1 in cacao trees and 1.67 Mg C ha-1 in the litter. The amount of carbon found in the intercropping corresponds to 336 Mg CO2eq. ha-1, equivalent to 336 CERs ha-1. The rubber-cacao intercropping has carbon stock capacity, and can greatly contribute to the reduction of the greenhouse effect gases, being a promising activity to generate programs to obtain carbon credits.

Keywords : Biomass; carbon credits; Hevea brasiliensis; Theobroma cacao.

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