Fialho, Ricardo Cardoso creator Teixeira, Rafael da Silva creator Teixeira, Ana Paula Mendes creator Reis, Thalles Guimarães creator Silva, Ivo Ribeiro da creator text periodical abstract or summary bl. continuing eng ABSTRACT This study aimed: i) to evaluate the influence of fertilization and irrigation management on eucalyptus plantations for soil carbon (C) dynamics; ii) to evaluate the impact of fertilization and irrigation management on eucalyptus plantations in the C allocation in depth compared to the Cerrado biome. This study was carried out in an eucalyptus plantation at the end of the third rotation (7 years), which received different fertilizations and irrigations, and a Cerrado area was used as reference. Soil samples were collected in trenches and the gases (CO2 and CH4) on the surface. The total organic carbon (TOC) is more influenced by the availability of water than nutrients. Soils under eucalyptus stands are more efficient at C stocks in depth than the Cerrado and act as a liquid drain of CO2 and CH4 from the atmosphere. Keywords: CO2, CH4, carbon management index, planted forests. Publicação on-line; 36 ref.; 2 tables; 2 illus.; Summary (En) CARBONO DIÓXIDO DE CARBONO METANO FLORESTA FERTILIDADE DO SOLO IRRIGAÇÃO Rio de Janeiro-RJ Instituto de Florestas - UFRRJ 1994 2025-0452 1415-0980 / ISSN 2179-8087 0nline BR2026001202 v. 26(4) p. 1-10; (2019) https://www.scielo.br/j/floram/a/kPrjdNTyvNBcRQhxVXvY6tn/?format=pdf&lang=en https://www.scielo.br/j/floram/a/kPrjdNTyvNBcRQhxVXvY6tn/?format=pdf&lang=en BR-BrBNA 260416 20260416175949.0 eng