نوع مقاله : مقاله پژوهشی
نویسندگان
1 استادیار گروه اقتصاد کشاورزی، پژوهشکده کشاورزی، پژوهشگاه زابل، زابل
2 دکترای اقتصاد کشاورزی، دانشگاه سیستان و بلوچستان، زاهدان
3 دانش آموخته کارشناسی ارشد مهندسی کامپیوتر، دانشگاه هاتف، زاهدان، ایران
چکیده
عنوان مقاله [English]
نویسندگان [English]
Due to frequent droughts, it is usually not possible to increase water allocation and therefore it is the limiting factor of water volume. Considering the limitation of water resources, the use of appropriate techniques to optimize the allocation of water to different products can be a solution. Using deficit irrigation methods is an optimal strategy to deal with the water shortage crisis. In the current study have been investigated the effects of deficit irrigation on water allocation between crops and regions, system profit, water exchange between regions. For this purpose, the Stackelberg-Nash-Cournot equilibrium model has been used with the aim of allocating water between different irrigated areas at the leader level and allocating water between different crops at the follower level in the condition that the water market is formed and emphasis on deficit irrigation. In this study, three scenarios of 5% deficit irrigation, 10% deficit irrigation and 15% deficit irrigation have been considered to deal with drought conditions in Sistan region. The results showed that in the condition that full irrigation is done, the most water is allocated to the melon crop and the least amount of water to the wheat crop, and the profit in this case is 2.71×1011 IRR, which increases the profit by applying deficit irrigation scenarios. The results of this research can be used as assistants for network managers and responsible people for water allocation.
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