Fig. 7
From: An enhanced national-scale urban tree canopy cover dataset for the United States
Boxplot depicting the distribution of coefficient of determination (R2) values across different U.S. Environmental Protection Agency (EPA) Level I Ecoregions. The boxes represent the interquartile range (IQR) of the R2 values, the horizontal line within each box indicates the median, and the ‘x’ marks represent the mean. Outliers are shown as individual points outside the whiskers, which extend to 1.5 times the IQR from the box. Letters correspond to statistically significant differences in mean R2 values between the Ecoregions using the Tukey’s Honestly Significant Difference post-hoc analysis.
