No abstract

No abstract

In the Marina Baja region there is a tradition of fierce competition for water resources which necessitates the regulation of institutions in order to satisfy the interests of the different water users. The management of the water resources in this region is based on the water exchange between the different users with no legal modification of the water concessions. This situation requires continuous negotiation in order to maintain the balance between urban, tourism and the agricultural demand. In this article we define, describe and analyse the equilibrium model for water resources of the Marina Baja District using a simultaneous equations model (SEM). We analyse variables that influence the water management model through a simultaneous relationship between the above-mentioned demands in the region of the Marina Baja, using a methodology that directly links urban and irrigation demands and makes them relevant to one another from a socioeconomic point of view.

The origin of the water supply system of Tajo-Segura, in 1932, goes back to when it was the unique possible solution to the shortage of hydric resources in the Confederación Hidrográfica del Segura (CHS). Its energy consumption is not homogeneous; it could be bigger or smaller, depending on the different water destination. The energy cost average of water of the Tajo-Segura water supply system is 1.21 kWh/m3. The energy consumption of desalination depends on the type of process used to desalinate the water, the time of operation and the capacity of the plant, and also on the density of water to treat. In any case, the energy consumption of the desalination ranges between 3.8 and 4.2 kWh/m3; obviously that is bigger than those obtained of the Tajo-Segura water supply system (1.21 kWh/m3).

No abstract