4.3. Are the three cases hydrologically restored to a pre-ditching state?

Many similarities can be found between the wetland delineation of the GTSD maps and the SCALGO rain fill model, which indicates

Figure 36: Map of part of Gribskov that includes all three case areas, showingthe delineation of SCALGO rain fill overlaying wetland delineation of the GTSD maps.

4.3. Are the three cases hydrologically restored to a preditching state?

When analysing soil samples alone, soil samples rarely contained peaty soil farther away than 0 m from blank water at Case 1 and Case 2. This indicated that these two cases have not been wetter historically than they are now and thus, they seemed to be hydrologically well restored. At Case 3, peat present in soils were common at longer distances from blank water. This indicated that the water table could have been higher in pre-ditching times. that most wetlands – including the three cases in this study – were indeed identified and drawn onto the maps to a manageable degree of accuracy for the time (fig 36).

It was found that the soils at Case 3 were generally wetter than at the other two cases. Instead of the presence of peat several metres from blank water being an indication that Case 3 is supposedly not as well restored as the other two cases, the wet soil samples instead indicates that a larger portion of the wetland might be on dry land here. This observation contradicts the claim of the previous observation, as it explains how the current extent of blank water can be sufficient for Case 3 to be considered well restored.