9 Portable device comprised of LiDAR sensors, camera sensors, inertial unit, pressure sensors, temperature sensors, microphone, global navigation satellite system (GNSS) antennas, GPS transmitters and receivers and embedded software for data collection of tree measurements, land cover and structural information about the forest and for monitoring, managing and analyzing the data collected to optimize forest harvesting yields in the forestry industry; Portable device comprised of LiDAR sensors, camera sensors, inertial unit, pressure sensors, temperature sensors, global navigation satellite system (GNSS) antennas, GPS transmitters and receivers and embedded software for measuring logging volumes, measuring biomass in fields after a logging operation, measuring slopes and ruts after a logging operation, locating logs left in fields after a logging operation, establishing an accurate forest inventory after a logging operation; position sensors; downloadable computer software and software applications for monitoring, collecting, managing and analyzing data in the nature of tree measurements, land cover and structural information about the forest to optimize forest harvesting yields in the forestry industry; downloadable computer software and software applications for collecting data in the nature of tree measurements, land cover and structural information about the forest for measuring logging volumes, measuring biomass in fields after a logging operation, measuring slopes and ruts after a logging operation, locating logs left in fields after a logging operation, establishing an accurate forest inventory after a logging operation;