Considering only the points established along a vertical axis on the extreme left of the Fig. 5, a strong negative correlation came out of the linear regression (red line). These points are directly connected geographically to the region south-east, in the Lignon’s surrounding. Dense region but closer than any other spot to the forest and riverside. If the same local analysis was applied to the densely populated area at North-West, the inverse relationship would probably be observed, dense region but at a certain distance from the first green quarter. The scatter plot could be divided into two, the dense and linear bottom part and the largely spread upper part.  Scattered points refer to the highly dense regions (Fig. 6), whereas the concentrated ones to the sparsely populated regions. These two group of points are marked by an important range’s difference (up to 6 times higher).