a) Overall metallicity as a function of Galactocentric radius for dwarf stars in the thin disc. b) Overall metallicity as a function of Galactocentric radius for giant stars in the thin disc. c) α-enhancement as a function of Galactocentric radius. We plotted the gradient found for giant (dash-dotted line) and dwarf (dashed line) stars. Blue X represent the stars from LRc01, green circles represent stars from SRc01, and red + represent stars from LRa01.