The research study lasted for four months, with data collection conducted over two consecutive months in March and April 2022, within the Raíces Amazónicas forest concession located in the district of Mazán, province of Maynas, department of Loreto. The objective was to quantify the biomass and stored carbon in commercial tree species in a medium terrace forest within the Raíces Amazónicas concession, district of Mazán, Loreto, in 2022. Evaluations of commercial tree species were carried out within logging plot twelve (PC 12) covering an area of 502.35 hectares, subdivided into 32 strips. Data collection was conducted through direct measurement (forest census), using a field data log where the most relevant characteristics of each commercial tree (common name, diameter at breast height, commercial height, total height) were recorded. Dauber's formula (Dauber et al., 2008, p. 9) was...