ارزیابی تأثیر ایجاد بازار آب بر ارتقای بهره‌وری با استفاده از مدل برنامه‌ریزی ریاضی (مطالعه موردی: حوضه آبریز تجن)

نوع مقاله : مقاله پژوهشی

نویسندگان

گروه علوم و مهندسی آب دانشکده مهندسی زراعی دانشگاه علوم کشاورزی و منابع طبیعی ساری، ساری، ایران.

10.22059/jwim.2024.366554.1110

چکیده

هدف از این مطالعه اثرات تشکیل بازارهای آب بر ارتقای بهره‌وری آب در حوضه آبریز تجن می‌باشد. در این پژوهش از یک سیستم مدل‌سازی، مدل برنامه‌ریزی ریاضی و تابع هدف حداکثرسازی سود در محیط زبان برنامه‌نویسی متلب استفاده شد. پس از شبیه‌سازی تشکیل بازار آب، تأثیر آن بر شاخص‌های بهره‌وری فیزیکی و اقتصادی آب در دو گروه شامل مزارع بدون محدودیت آب (گروه A) و مزارع با محدودیت آب (گروه B) موردارزیابی قرار گرفت. براساس نتایج، تشکیل بازار آب منجر به افزایش 13 درصد سود در گروه (A) و 30 درصد سود در گروه (B) می‌شود. با توجه به نتایج، تشکیل بازار آب میزان مصرف آب در مزارع نماینده (A) و (B) را به‌ترتیب کاهش و افزایش می‌دهد. نتایج ارزیابی شاخص‌های بهره‌وری آب حاکی از آن است که در گروه (A) در دسترس‌بودن آب و در نتیجه افزایش سطح زیر کشت و در گروه (B) جبران کمبود آب و افزایش سطح زیر کشت منجر به افزایش بهره‌وری فیزیکی شده است. در مزارع گروه (A) فروش آب و در مزارع گروه (B) تخصیص آب به محصولات با ارزش اقتصادی بالاتر افزایش بهره‌وری اقتصادی آب را در پی داشته است. به‌طورکلی، می‌توان بیان نمود که تشکیل بازار آب موجب افزایش بهره‌وری می‎گردد، اما تنهایی منجر به‌دستدست‌یابی به کشاورزی پایدار و کاهش مصرف آب در سطح حوضه آبریز نمی‌شود. بنابراین اجرای سیاست‌های دیگر نظیر کنترل برداشت از منابع آب سطحی و زیرزمینی، تحویل حجمی آب براساس الگوی کشت بهینه و تخصیص آب به محصولات با ارزش اقتصادی بالاتر همراه با رویکرد بازار آب می‌تواند علاوه‌ بر کاهش مصرف آب، بهره‌وری آب را نیز ارتقا دهد.

کلیدواژه‌ها

موضوعات

عنوان مقاله [English]

Evaluating the impact of creating a water market on improving productivity using a mathematical programming model (Case study: Tajen watershed)

نویسندگان [English]

  • alireza zarei ghorkhodi
  • Ali Shahnazari
Department of Water Engineering, Faculty of Agricultural Engineering, Sari Agricultural Sciences and Natural Resources University, Sari, Iran.
چکیده [English]

The purpose of this study is the effects of the formation of water markets on the improvement of water productivity in the Tajen catchment basin. In this research, a mathematical programming model modeling system and profit maximization objective function were used in MATLAB environment. After simulating the formation of the water market, its impact on physical and economic water productivity indicators was evaluated in two groups including: farms without water restrictions group (A) and farms with water restrictions group (B). Based on the results, forming a water market leads to a 13 percent increase in profit in group (A) and 30 percent in group (B). According to the results, the formation of the water market reduces and increases the amount of water consumption in representative farms (A) and (B), respectively. The results of the evaluation of water productivity indicators indicate that in group (A), the availability of water and consequently the increase of the cultivated area, and in group (B), the compensation of the lack of water and the increase of the cultivated area have led to an increase in physical productivity. In the farms of group (A), the sale of water and in the farms of group (B), the allocation of water to products with higher economic value has led to an increase in the economic productivity of water. In general, it can be said that forming a water market leads to an increase in productivity, but alone it does not lead to achieving sustainable agriculture and reducing water consumption at the watershed level. Therefore, the implementation of other policies such as the control of extraction from surface and underground water resources, volume delivery of water based on the pattern of optimal cultivation and allocation of water to products with higher economic value along with the water market approach can improve water productivity in addition to reducing water consumption.

کلیدواژه‌ها [English]

  • Agriculture
  • Genetic algorithm
  • Water crisis
  • Water resource management

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مدیریت آب و آبیاری
دوره 14، شماره 1
فروردین 1403
صفحه 207-221

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