Fig. 5
From: Two-thirds of global cropland area impacted by climate oscillations
Combined effects of the oscillation indices on crop productivity. a shows which oscillation indices are found to be significant explanatory parameters in the multivariate regression model with crop productivity as the dependant variable, and b shows the adjusted R2 of the model for each FPU. The areas where Pearson’s correlation between reported and simulated crop productivity is not significant (p > 0.1) are striped
