Cost-benefit analysis of irrigation modernization in Guadalquivir River Basin

Borrego-Marín María M., Berbel Julio
2018 Proceedings of 3rd International Electronic Conference on Water Sciences (ECWS-3)   unpublished
In water scarce areas, policy makers frequently opt for water conservation and saving 9 technologies (WCSTs) as a measure to ensure resource use sustainability, although this policy is 10 subject to scientific and political debate. This work presents an application of an integrated 11 methodological approach for analysing the costs and benefits of using WCSTs to achieve water policy 12 objectives. The focus is on the measures aimed at reducing irrigation water abstraction under the 1 st 13 and
more » ... nd cycle of Water Framework Directive implementation in the Guadalquivir River Basin 14 (Southern Spain). The method is a combination of a multicriteria assessment of the main effects of 15 water-saving investments at basin level, estimated using a selected group of indicators. In a second 16 stage, a cost-benefit analysis is conducted. The study finds a benefit-to-cost ratio of 4.1/1 for the 17 Guadalquivir River Basin, thus concluding that irrigation modernization in this case study has been 18 a good social investment. The method can be extended to other hydrological systems (aquifer basins) 19 to draw general conclusions. 20 21
doi:10.3390/ecws-3-05826 fatcat:opqvs3leybd3hiuayv7bc47fj4