Potential for vegetation conversion. Values greater than 0 appear in water-surplus areas, and the value represents the proportion of low water-consuming vegetation that can be converted to high water-consuming vegetation in each 0.5° grid. Values lower than 0 appear in water-deficit areas, and the value indicates how much of the high water-consuming vegetation needs to be converted to low water-consuming vegetation in order to balance the water resources. The former of each panel title is high water consumption vegetation, the latter is low water consumption, and the small plots in the lower right corner show their respective land cover.