| Summary: | Irrigation and drainage networks are having numerous problems in various stages such as design, implementation and utilization usually that reduce efficiency and destroy its structures. Also its reform and restructuring is difficult and unprofitable. This subject is main concern for water planners in the country and so far several activities for management of irrigation and drainage networks have been taken but most of these measures have not had significant success due to the lack of holistically. The main purpose of this study was to assess the irrigation and drainage networks performance (Gavoshan B2 unit (from the viewpoint of water user cooperatives in Kamyaran Township. To prepare the questionnaire, preliminary data were collected by PRA techniques and analysed using SWAT model and 12 point of strength, 10 weakness, 8 opportunity, 11 threats were ranked and 25 strategy have been presented. Findings showed that internal factors (strength and weakness points) had higher score weight than external factors (treatments and opportunities). Strength points with mean score weight of 3.97 had maximum and opportunities with mean score weight of 3.36 had minimum score. Score weight of strength points are more than score weight of weakness, that it shows its related Criteria has positive effect of on project. Also score weight of threats points are more than score weight of opportunity, that it shows its related Criteria has negative effect of on project. Hence, based on results is determined that diversification strategy should be considered as priority for optimization development of irrigation networks performance.
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