An analysis of the sustainability of basin water resources using Vensim model

Given the high dynamics of water resources management systems, system dynamics approach and vensim model has been used to model the water resources system in the study area. After verification of the model, the sustainability indicators were assessed under simulated scenarios and different policy packages. At the end, the policy packages related to each scenario were ranked based on analytical hierarchy process. According to the results, increased irrigation efficiency and reduced non-revenue water coefficient were the most important objectives in the short and medium terms. Moreover, reducing net crop water demand was necessary. In long term, reducing net crop water demand was the most important objective. Also, increased irrigation efficiency and reduced nonrevenue water coefficient had less importance especially in the scenarios of current economic and population growth rate.