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The study aimed to fit mathematical models for the construction of Site\udIndex curves and to estimate heights at different ages for Eucalyptus grandis in the Campos\udGerais region, Parana State. The data used to fit the models came from permanent,\udtemporary plots and pre-harvesting inventory, covering ages from 2.5 to 26.5 years.\udSeveral models were tested to represent the sites and the hypsometric relationship. The\udSite Index curves were constructed by the guide-curve method. For the Site Index, the\udChapman-Richards model showed the best fit and precision statistics, generating 5 Site\udIndex curves (range of 5 m) with the Chapman-Richards model. The four hypsometric\udmodels tested showed satisfactory performance and similar statistics and the inclusion of\udthe variables dominant height or site index did not substantially improve the goodness of\udfit statistics, but the residues were more homogeneous and closer to zero

CURVAS DE SÍTIO E RELAÇÕES HIPSOMÉTRICAS PARA Eucalyptus grandisNA REGIÃO DOS CAMPOS GERAIS, PARANÁ