There is a strong interconnectedness within a catchment between water resources, water demands, user sectors, and different users within any specific sector. Any solution for water scarcity adaptation that is implemented at a local level by one sector can have short to long term effects on resources and uses for other sectors elsewhere in the catchment. This is especially the case in Mediterranean regions where adaptation solutions to water scarcity are implemented for agriculture and forest at field, farm, irrigated area or stand scales. Interconnectedness implies that any solution, decided and implemented locally may alter not only the water demand and use within this area, but also the blue water (through river flow or groundwater recharge) this area supplies to a strategic water resource (dam, or aquifer) at the upper level of the catchment. Conversely, decisions made at the upper level may have consequences on water availability and use at the local level. For instance, policy of water restriction adopted to manage the water resource of aquifers or dams may significantly modify the water availability and use for irrigation districts, farms and crop fields.
