Fig. 1From: Effects on groundwater storage of restoring, constructing or draining wetlands in temperate and boreal climates: a systematic reviewIllustration of groundwater storage change after wetland restoration. In a drained wetland (a), a ditch causes drawdown of the groundwater in the vicinity of the ditch. After restoration of the ditch (b), the groundwater level rises, possibly also in the adjacent soil if it is permeable and in hydraulic contact with the ditchBack to article page