摘要:The forests have a vital role in carbon capture from the atmosphere. Thus, this work has as its main objective to quantify and analyze biomass of a forest fragment of a Pinus uncinata that belongs to Alinyà Mountain Natural Space, through of Light Detection and Ranging (LIDAR) data tools. The natural area is located in the County of Figòls y Alinyà, in the Lleida province, located in Catalonia-Spain. In this sense, using the LIDAR data, the Digital Terrain Models were generated, and relevant statistical calculations were made to subsequently calculate the forest biomass. The linear regression models for biomass had a satisfactory correlation with the inventory data for 2 of the 5 areas considered. In this sense, it was possible to estimate these forest variables for the study area. The calculation of forest biomass by LIDAR data resulted in 9.138.6 tons to an area of 69.04 ha, while the inventory calculations resulted in 11.638.4 tons.