Integrated KS relation. The tail of the arrows represents Σ_H2, while the head indicates Σ_H2 + HI. We show the results for galaxies with stellar masses Mstar > 10⁸ M_⊙ and bulge-to-total ratios B/T < 0.5. The colour bar encodes the H₂ fraction of each galaxy. Red/blue dashed line segments are linear fits in the log-log plane for galaxies with H₂ fraction lower/greater than 0.5. The corresponding slopes are labelled in each panel for H₂ and H₂ + HI gas phases. Solid line represents one of the fits (slope n = 1.03) from de los Reyes & Kennicutt (2019) to the Σ_H2-Σ_SFR relation obtained from a compilation of observational samples of local spirals.