Model Fit Statistics for Urban Tree Biomass Equations in Shihezi City

This dataset provides the statistical diagnostics for species-specific biomass allometric equations developed for 14 urban tree species in Shihezi City, an arid region of northwestern China. The dataset includes the coefficient of determination (R²), root mean square error (RMSE), standard errors of model parameters, and sample sizes used for model fitting. These diagnostics evaluate the performance and reliability of the biomass equations reported in the associated manuscript. The dataset serves as supplementary material supporting transparency and reproducibility in urban tree biomass and carbon estimation studies.