Finally, with the last question, we compared the GIWR and the RH values to investigate to which extent the use
of rainwater can supply the water demands of the cultivated parcels. Estimated values show that, by excluding
vineyards and olive groves generally cultivated under rainfed conditions, horticulture is actually sustainable. In fact,
with best irrigation efficiency scenario, a total amount of 949 parcels could be irrigated without additional water.