ارزیابی آبیاری نواری و مقایسه با مدل WinSRFR (مطالعه موردی در اراضی پایاب سد مخزنی دویرج دهلران)

نوع مقاله: مقاله پژوهشی

نویسندگان

1 دانشجوی دکتری تخصصی، گروه آبیاری و زهکشی، واحد اراک، دانشگاه آزاد اسلامی، اراک، ایران

2 دانشیار گروه مهندسی آبیاری و زهکشی دانشگاه آزاد اراک

3 استادیار گروه آبیاری و زهکشی، واحد اراک، دانشگاه آزاد اسلامی، اراک، ایران

4 استادیار گروه مهندسی آب و خاک، دانشگاه ایلام، ایلام، ایران

5 دانشجوی دکتری مدیریت منابع خاک، دانشگاه تهران، کرج، ایران

چکیده

وضعیت مدیریت آب آبیاری در هشت مزرعۀ گندم آبی در اراضی کشاورزی واحد‌های عمرانی مرزآباد، موسیان و پتک تحت پوشش شبکۀ آبیاری پایاب سد مخزنی دویرج دهلران بررسی شده است. شرایطپایین­دستجریاندرتمامینوارهابه‌صورتانتها­بازبودوبانصبفلوم‌هایWSC در ابتدا وانتهاینوارها،هیدروگراف حجم آب ورودی وروانابخروجیاندازه‌گیریشد. پارامترهای راندمان کاربرد در مزارع مورد مطالعه با مقادیر شبیه‌سازی شده با نرم‌افزار WinSRFR مقایسه گردید. حداقل و حداکثر رواناب اندازه‌گیری در مزارع مورد آزمایش به‌ترتیب 9/18 و 1/33 درصد و در حالت شبیه‌سازی، 12 و 42 درصد به‌دست ‌آمده. در 75 درصد از مزارع مورد مطالعه، تلفات نفوذ عمقی وجود نداشت. حداقل وحداکثر میانگین راندمان کاربرد  به ترتیب  3/60 و 5/80درصد و در حالت شبیه‌سازی، 56 و 88درصد به­دست آمد. میانگین  راندمان کاربرد اندازه‌گیری شده در هشت مزرعۀ مورد آزمایش 7/69 درصد به‌دست آمد.  زیاد بودن راندمان کاربرد آب آبیاری به­دلیل مدیریت نامناسب در اعمال کم‌ آبیاری‌های نا‌خواسته از طرف کشاورزان است.

کلیدواژه‌ها


عنوان مقاله [English]

Evaluation of Border Irrigation and Comparison with the WinSRFR Model (Case Study on the Downstream Lands of the Reservoir Dam of Doyraj)

نویسندگان [English]

  • hamidreza skakari 1
  • Mohsen Najarchi 2
  • Reza Jaafarinia 3
  • Shahroo Mokhtari 3
  • Hamzeh ali Alizadeh 4
  • asghar rahmani 5
1 Ph.D. Student, irrigation and drainage department,university of azad arak
2 AssosiateProfessor, Department of Irrigation and Drainage Engineering, Faculty of Agriculture, Islamic Azad University of Arak
3 Assistant Professor, Department of Irrigation and Drainage Engineering, Faculty of Agriculture, Islamic Azad University of Arak
4 Assistant Professor, Department of Water and Soil Engineering, Faculty of Agriculture, University of Ilam
5 soil and engineering science, university of tehran
چکیده [English]

The situation of water management was investigated in eight wheat fields in agricultural lands of Marzabad, Mousian and Patak district, within irrigation networks of Dehloran Doyraj Reservoir dam. The downstream conditions in all borders were open ended and the volume of inflow water and outflow runoff hydrograph were measured. The application efficiency parameters in those fields compared with that in simulated values using WinSRFR software. The minimum and maximum runoff in the fields were 18.9% and 33.1%, respectively, compared with that  in simulation mode that were 12% and 42%. In 75% of the fields, no deep percolation losses has been noticed. The average of minimum and maximum of application efficiency recorded as 60.3% and 80.5%, respectively, and in simulation mode 56% and 88%, respectively. The average of application efficiency measured in eight fields was 69.7%. Increase in efficiency of irrigation water can be attributed to mismanagement of unwanted low irrigation practices by farmers.

کلیدواژه‌ها [English]

  • Deep percolation
  • Irrigation Adequacy
  • runoff
  • simulation
  • Water Requirement Efficiency
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