A Multi-Criteria Approach for Irrigation Water Management
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The major implications that the European Union (EU) Water Framework Directive
(WFD) may have in irrigated agriculture were analysed using alternative water policy
measures. The consequences of policy change were evaluated in a case study (Baixo
Alentejo, Portugal), using a Multi-Criteria Decision Making (MCDM) model that simulates
farmers’ preferred behaviour. The study compares the effects of water pricing
(volumetric and flat tariffs) and consumption quotas, in farmer’s income, water agency
revenues, agricultural employment and water demand for irrigation. Model results indicate
that the adjustments in farmer’s responses are dependent on the policy strategy enforced
and on the policy level.