In the study carried out in PC1, the low terrace forest of the Nuevo Trujillo native community. Maquía District, Ucayali River. Loreto – Peru. A total of 292 trees were recorded, grouped into 06 commercial forest species and 05 botanical families, where the Malvaceae families contain the largest number of species (two species), followed by the “Moraceae”, “Vochysiaceae”, “Rubiaceae”, “Sapotaceae” families (one species each). Volume by diameter class, showing the calculation of 7,855 m3/h in the of a total of 221,813 h. The “Capinurí” species (6,903 m3/h), reports the highest volume; On the contrary, “Quillosisa” (0,301 m3/h), “Lupuna” (0,212 m3/h), “Capirona” (0,212 m3/h), “Huimba” (0,207 m3/h) and “Quinilla” (0,020 m3/h) show lower volume. Also, it is necessary to indicate that the diameter class of 100 cm or more (2,569 m3/Ha) contains the hi...