Comparison of Biomass Measurements With Modern and Classical Instruments.

Forest biomass includes organic materials from forest ecosystems, such as wood, leaves, and branches, and is an important natural resource for the production of timber, bioenergy, and other products. Sustainable management of it is crucial for the protection of forest ecosystems, reducing the risk of fires, and utilizing natural resources.The estimation of forest biomass can be done through methods based on weight or spatial volume measurements. The conversion factor allows for the calculation of the net wood volume, defining the relationship between total volume and actual timber.Forest policy plays a crucial role in the responsible management of biomass, promoting modern technologies for fire prevention and efficient resource management. The SLAM GNSS RTK 3D scanning technology offers precise and fast mapping of forest areas, creating 3D models of timber that are analyzed with software such as CoPre and CloudCompare.The study focuses on comparing three methods for measuring firewood in Agia Eleousa: traditional measurement, the Huber method, and SLAM 3D GNSS RTK. The results showed that the Huber method is the most reliable for non-stacked timber, while the SLAM technology, although offering fast mapping, overestimates the volume due to gaps between log segments.