Cálculo de Volume Madeireiro de Eucalyptus sp. a Partir de Varredura a Laser

Abstract

The accurate quantification of wood volume is essential for effective timber production management, impacting decisions such as silvicultural treatments, harvesting, and supply chain logistics. Recently, laser scanning has emerged as a promising technology in forest measurement, offering efficiency and accuracy comparable to traditional inventory methods. Terrestrial Laser Scanner (TLS) plays a pivotal role by providing three-dimensional data of tree stems for wood volume calculation.This study evaluates the potential of Light Detection and Ranging (LiDAR) for estimating eucalyptus wood volume, comparing rigorous cubic measurement methods (actual volumes) with indirect methods (predicted volume). Statistical analysis, including Root Mean Square Error (RMSE), RMSE%, standard deviation, and correlation between measured volumes, was conducted to assess the accuracy of laser scanning.The Robotic Total Station (RTS) was employed to measure Diameter at Breast Height (DBH) with precision under 10%, utilizing raw point cloud data. A correlation of 0.761 was observed between volumes obtained through rigorous cubic measurement and those calculated from stem surface data. These findings highlight the potential of LiDAR and TLS technologies in accurately quantifying wood volume, crucial for efficient forest management.