Evaluation of Almond and Walnut tree species drip irrigation system by mathematical model

Subject Areas : Irrigation and Drainage

رضا صالحی ¹ , سینا عطارروشن ² , رمضانعلی پوررستمی ³ , سیامک کاتبی فر ⁴

1 -
2 -
3 -
4 -

Received: 2021-05-04 Accepted : 2021-09-01 Published : 2020-02-01

Keywords: mathematical model, مدل ریاضی, irrigation efficiency, drip irrigation, راندمان آبیاری, قطره چکان, Dripper, آبیاری قطره‎ای,

Abstract :

The drip irrigation systems are an ideal potential in water distribution with high efficiency, it is considered to be a safe way toward better usage of water supplies. In the direction of quantity, one must also pay attention to the quality of the plans and must be evaluated. How this evaluation is easier and faster and cheaper, it will be more economical, usage of computer facilities and presenting mathematical and computer models are the best way. Besides, by using models, it does not need to do most of measurements in site and without any payment or with the lowest payment, we will be able to research scenarios and different conditions and see the results in the models and finally apply the suggestions and improving and management solutions. In this study, the existing drip irrigation system that applied in Shahmirzad of Semnan province(IRAN) was survived and evaluated according to plan and performance and management and finally mathematical model was performed too. The evaluation parameters were chosen on the basis of Soil Conservation Services (SCS). The System evaluated with EUm of 85.7 Percent, ERF of 0.64 and EUs of 54.8 percent. Average amount of EUm in the whole manifolds under investigation was about 87.3 percent and ERF of 0.79.

References:

اکبردخت‎بمی، م. (1376). ارزیابی اقتصادی سیستم‎های آبیاری تحت فشار قطره‎ای و بابلر. پایان‎نامه کارشناسی ارشد، دانشگاه ارومیه.

باحجت‎خشنودی، ا. (1373). طراحی هیدرولیکی آبیاری قطره‎ای با ارائه مدل کامپیوتری. پایان‎نامه کارشناسی ارشد، دانشگاه تبریز.

سلامت‎منش، غ. (1375). بررسی و ارزیابی عملکرد سیستم‎های آبیاری قطره‎ای در سطح استان سمنان. پایان‎نامه کارشناسی ارشد، دانشگاه تهران.

علیزاده، ا. (1389). اصول و عملیات آبیاری قطره‎ای، چاپ دوم، انتشارات دانشگاه امام رضا (ع)، 494ص.

قاسم‎زاده‎ مجاوری، ف. (1377). ارزیابی سیستم‎های آبیاری مزارع ، چاپ دوم، انتشارات آستان قدس رضوی، 336ص.

کشاورز، ع. (1358). ارزیابی سیستم‎های آبیاری تحت فشار در ایران. پایان‎نامه کارشناسی ارشد، دانشگاه تهران.

ASAE Standards, (1990). Field Evaluation of Micro-Irrigation Systems, EP458.

Ensworth, M. (2000). Simulation helps improve performance by over 50% in irrigation components. Journal articles by fluent software users, JA109.

Pedras, C. M. G. and Pereira L. S. (2001). A Simulation Model for Design and Evaluation of Micro-Irrigation Systems. Journal of Irrigation and Drainage, 50 (4), pp: 323-334.

Yildirim, O. (2003). Design of irrigation systems. Ankara University, Faculty of Agriculture Public, Ankara, 1536p.