Planning and Optimal Allocation of Water Resources in the Agricultural Sector (Case study of Someh Sara City)

In an economy based on agriculture, which has expanded in many developing and developing countries, the need for comprehensive planning and planning for the use of agricultural inputs is essential in order to maximize economic profit. The demand for agricultural water in Iran is increasing day by day and its supply is limited due to the presence of Iran in the dry and semi-arid belt of the world. For this reason, this vital ingredient in Iran is one of the most important pillars of development, and the development of other sectors depends on sustainable exploitation. The purpose of this research is to determine the optimal allocation of water resources using the fuzzy planning approach and explain the planning axis on the water and land resource decision variable in the city of Some Sara, Gilan province. For this purpose, with the aim of maximizing gross margin and due to system limitations and goals in different scenarios and different values of λ , The results showed that the cropping pattern in the studied area was not efficient and the acreage of bean should be increased compared to rice which should be more limited in the pattern. In addition, rice and beans absorbed the higher water allocations in both models. It is recommended that for optimum use of productions factors and the farmer's income, and since water is a limiting factor in agricultural production compared to land, proper scheduling must be considered.