| Definition | Tree identification. | Diameter at breast height. The precision is 0.1 cm. | Tree height. The precision is 0.01 m. | Height of the trunk disk location from the ground (h). The precision is 0.01 m. | Volume density of the trunk disk (ρi, h). | Estimated volume of the part of the trunk (Vi, h). | Dry weight of the part of the trunk estimated using the volume density (Wi, h). |