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استخراج منحنی فرمان آبیاری محصول گندم با استفاده از رویکرد شبیهسازی- بهینهسازی | ||
| تحقیقات آب و خاک ایران | ||
| مقاله 20، دوره 50، شماره 5، مهر 1398، صفحه 1279-1291 اصل مقاله (1007.07 K) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22059/ijswr.2018.260324.667949 | ||
| نویسندگان | ||
| احمد خزائی پول1؛ علی مریدی* 2؛ جعفر یزدی1 | ||
| 1گروه مدیریت منابع آب، دانشگاه شهید بهشتی، تهران، ایران. | ||
| 2استادیار دانشکده مهندسی عمران، آب و محیط زیست دانشگاه شهید بهشتی | ||
| چکیده | ||
| با توجه به اینکه کشاورزی از جمله بخشهای پرمصرف منابع آب است، مدیریت و کنترل در این بخش میتواند سهم بسزایی در مدیریت منابع آب داشته باشد. در این مطالعه رویکرد شبیهسازی-بهینهسازی با استفاده از ابزار ارزیابی خاک و آب (SWAT) در ترکیب با الگوریتم بهینهسازی تفاضلی غیر غالب (NSDE) بهمنظور پیدا کردن بهترین منحنی فرمان برای آبیاری محصول گندم در حوضه مهاباد به کار گرفته شد. عملکرد محصول گندم در سالهای 2011 تا 2013 برای واسنجی و صحتسنجی SWAT در نظر گرفته شد. بر مبنای قانون جیرهبندی، تابعی دو هدفه بکار گرفته شد که یکی از اهداف آن تولید محصول بیشتر و دیگری حجم آبیاری کمتر بود. نتایج بهینه نشان دادند که با کاهش میزان آبیاری سالانه از 200 میلیمتر به حدود 100 میلیمتر میتوان تولیدی برابر 114/2 تن در هکتار داشت که این عدد برابر میزان تولید محصول الگوی فعلی آبیاری است. این رویکرد با معرفی بهترین الگوی آبیاری، حداکثر صرفه اقتصادی را ارائه نموده و نشان داد که میزان تغذیه آب زیرزمینی و رواناب سطحی نیز به ترتیب به اندازه 34 درصد و 16 درصد کاهش مییابد. | ||
| کلیدواژه‌ها | ||
| آبیاری؛ بهینهسازی؛ شبیهسازی؛ عملکرد محصول؛ SWAT | ||
| عنوان مقاله [English] | ||
| Extraction of Wheat Irrigation Operation Curve using Simulation-Optimization Approach | ||
| نویسندگان [English] | ||
| Ahmad KhazaiePoul1؛ Ali Moridi2؛ Jafar Yazdi1 | ||
| 1school of civil, Water and the environment, Campus of Engineering, Shahid abbaspoor, University of Shahid Beheshti, Tehran, Iran. | ||
| 2Civil, Water and Environmental Engineering Faculty, Shahid Beheshti University | ||
| چکیده [English] | ||
| As agriculture consumes the most parts of water resources, management and control in this sector plays a significant role in water resources management. In this study, simulation-optimization approach was applied using soil and water assessment tool (SWAT) in combination with non-dominated sorting differential evolution (NSDE) algorithm to find the best operation curve for wheat irrigation in Mahabad basin. The wheat production in 2011 to 2013 was considered for SWAT calibration and validation. According to the hedging rule, a two-objective function was used to increase the crop yield and reduce the irrigation volume. The optimum results showed by reducing the annual irrigation rate from 200 mm to about 100 mm, the wheat production will be 2.114 ton/ha which is equal to the current irrigation pattern yield. This approach could maximize the economic cost by introducing the best irrigation pattern and consequently reduce the groundwater recharge and surface run-off 34% and 13%, respectively. | ||
| کلیدواژه‌ها [English] | ||
| simulation, Irrigation, yield, Optimization, SWAT | ||
| مراجع | ||
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