Double Entry Volumetric Models for Eucalyptus Trees in Brazil

180 tree samples of Eucalyptus urophylla and Eucalyptus grandis aged 5-7 years were used to develop volumetric models for quantifying wood volume in Brazil. The study, authored by Valdir Carlos Lima de Andrade, evaluated model performance using statistical criteria including standard error of the estimate and adjusted coefficient of determination. A volumetric model adapted from the form factor equation to the Gompertz biomathematical model was selected.

Use Cases

• Predicting wood volume for Eucalyptus stands based on tree measurements.
• Comparing the performance of different volumetric models using statistical criteria mentioned in the description.
• Applying the Gompertz biomathematical model to forestry growth and yield estimation.

Strengths

• Data is based on 180 tree samples, providing a concrete sample size for model development.
• Model evaluation used multiple statistical criteria, including standard error of the estimate and adjusted coefficient of determination.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count for the underlying dataset is unknown, which may limit suitability assessment.

Provenance

Source

Valdir Carlos Lima de Andrade

Collection Method

Case study using tree sample data.

Geography

Brazil