Using Tree Height, Crown Area and Stand-Level Parameters to Estimate Tree Diameter, Volume, and Biomass of Pinus radiata, Eucalyptus globulus and Eucalyptus nitens

Accurate estimates of tree diameter, height, volume, and biomass are important for numerous economic ecological applications. In this study, we report exponential equations to predict DBH (cm), stem volume over bark (VOB, m3), total above-stump (TASB, kg) using three varying levels input data Pinus radiata D. Don, Eucalyptus globulus Labill., nitens (H.Deane & Maiden) Maiden planted trees. The sets included: (1) height (HT, m), (2) HT ground projected living crown area (CA, m2), (3) HT, CA, additional stand parameters. analysis was performed a large dataset covering the range distribution species in central Chile included stands ages planting densities. first set only were satisfactory with Adj-R2 values ranging from 0.78 0.98 across all variables. For species, estimation DBH, VOB, TASB as function improved when CA added an independent variable, increasing reducing RMSE. inclusion variables, such age density, also resulted further improvement model performance. models reported study robust alternative estimations on wide densities, known, especially derived remote sensing techniques.