Carbon contents in Caatinga forest species

• Autor(a) principal: Silva, Ane Cristine Fortes da
• Data de Publicação: 2022
• Outros Autores: Freire, Fernando José, Borges, César Henrique Alves, Araujo, Emmanoella Costa Guaraná, Santana, Gabriel Mendes, Cunha Neto, Ernandes Macedo da, Sanquetta, Carlos Roberto
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Ciência Florestal (Online)
• Texto Completo: https://periodicos.ufsm.br/cienciaflorestal/article/view/42456
• topic: Carbon concentration; Carbon sequestration; Tropical Dry Forest; Leaf C content; Stem C content; Concentração de carbono; Sequestro de carbono; Floresta tropical seca; Teor de carbono nas folhas; Teor de carbono no lenho

This study aimed to quantify the carbon contents in biomass reservoirs of different species in a Tropical Dry Forest located in Northeast, Brazil. We developed a previous floristic and phytosociological study and selected the nine highest absolute density (AD) species of the fragment, representing 87% of the fragment AD. We sampled the leaves and stem tissues of each species for carbon content determination. As result, the leaf C content differed between the species. The C leaf content ranged between 448.0 and 454.3 g C per kg of dry biomass. The C stem content varied between the species from 451.4 to 453.1 g C per kg of dry biomass. Our results suggest the use of a species-specific biomass-carbon conversion factor in Caatinga, as an alternative to the 50% factor recommended by the IPCC. This research reveals that the use of the factor recommended by the IPCC overestimates C stocks in Caatinga. Further studies are encouraged to confirm this result.