Guidelines for Evaluation of Center pivot Irrigation System Performance (Technical note)

فصلنامه آب و توسعه پایدار

Article 12, Volume 2, Issue 2 - Serial Number 5, March 2016, Pages 85-91   

Document Type: Technical Nدotes

DOI: 10.22067/jwsd.v2i2.42900

Authors

mohammad karimi^{* 1}; mohammad Jolaini²

¹Agricultural and natural resources research center of razavi khorasanof

²Agricultural and natural resources research center of razavi khorasan

Abstract

Evaluation of any irrigation system consists of analyzing the measurable performance of the system in real conditions as well as during the normal operation of the farm. Irrigation evaluation is a management tool that allows the system manager to make the best use of what is available. Unfortunately, in most regions of Iran, after the implementation of irrigation systems their performance is not controlled or supervised. Also, during the operation of the system, the efficiency is not monitored nor analyzed either. Furthermore, the importance of irrigation system evaluation is not clarified to the users in our country. Despite the numerous research that has been conducted on the evaluation of center pivot irrigation system performance by domestic and foreign scholars, due to the complexity of existing evaluation methods, most farmers are not able to use them. Thus, in this paper, we have aimed to provide concise and simplified instructions for evaluating center pivot irrigation systems in order to help farmers in using them more readily. For evaluation of an irrigation system, the use of indexes such as water distribution uniformity, potential output and actual output for irrigation are recommended. Water distribution uniformity is an indicator of the water distribution problems in an irrigation system. The potential output of irrigation index describes the system performance under the current circumstances. Actual output of irrigation is an index that identifies the irrigation management, however it does not show the accuracy of the irrigation system design. According to the review conducted from academic resources, for a center pivot irrigation system, with a water distribution uniformity value of less than 76%, the irrigation potential and actual outputs value of less than 80% and 75%, respectively, are not suitable.

Keywords

Guidelines; Evaluation; Performance; Irrigation System; Center pivot

References

دوست محمدی، م. م.، سلطانی محمدی، ا. و رضایی‏راد، ه. 1392. ارزیابی عملکردسیستم آبیاری دوار مرکزی (مطالعه موردی استان قم). اولین همایش ملی بحران آب. دانشگاه آزاد اسلامی واحد خوراسگان، اصفهان، ایران.

سهرابی، ت. و اصیل‏منش، ر. 1375. ارزیابی عملکرد سیستم آبیاری بارانی عقربه‏ای (سنترپیوت). هشتمین سمینار کمیته ملی آبیاری و زهکشی ایران. تهران، ایران، ص. 129-147.

سهرابی، ت. و امیدوار، م. 1381. بررسی عملکرد، مشکلات بهره‏برداری و فنی سیستم‏های آبیاری بارانی دوار در منطقه جوین خراسان. مجله کشاورزی و عمران روستایی، 4(1): 37-52.

فروغی، ف. و قائمی، ع.ا. 1386. تعیین تلفات تبخیر و بادبردگی در دستگاه آبیاری دوار مرکزی در منطقه باجگاه. مجله آبیاری و زهکشی ایران، 1(1): 63-70.

قاسم‌زاده مجاوری، ف. 1369. ارزیابی سیستم‌های آبیاری مزارع. انتشارات آستان قدس رضوی. مشهد.

قائمی، ع.ا. 1383. ارزیابی هیدرولیکی سیستم آبیاری بارانی عقربه‏ای ساخت داخل کشور و بررسی مشکلات فنی آن، مجله تحقیقات مهندسی کشاورزی، 5(19): 27-48.

نادری، ن. 1389. بررسی فنی عملکرد سیستم آبیاری عقربه‏ای (سنترپیوت). مجموعه مقالات سومین سمینار ملی توسعه پایدار روش‌های آبیاری تحت فشار. ص. 249-254.

Al-Ghobari H.M. 2014. Effect of Center Pivot System Lateral Configuration on Water Application Uniformity in an Arid Area. J. Agr. Sci. Tech., 16: 577-589.

Almasraf S., Jury J. and Miller S. 2011. Field Evaluation of Center Pivot Sprinkler Irrigation Systems In Michigan. Department of Bio systems and Agricultural Engineering, Michigan State University, 36 p.

ASAE Standards. 2003. Test procedures for determining the uniformity of water distribution of center pivot and moving lateral irrigation machines equipped with spray or sprinkler nozzles. ANSI/ASAE S436.1 DEC01. 931-938.

Ghorbani B. and Amini M. 2011. Assessment of sprinkler irrigation systems operation at Chaharmahal and Bakhtiari province, Iran. ICID 21st International Congress on Irrigation and Drainage. 15-23 October 2011, Tehran, Iran. Pp. 387-395.

Griffiths B. 2006. In-field evaluation of irrigation system performance. Submitted in partial fulfillment of the requirements for the degree of MscEng, School of Bioresources Engineering and Environmental Hydrology University of KwaZulu-Natal Pietermaritzburg, 39p.

Harrison K. and Perry C. 2013. Evaluating and Interpreting Application Uniformity of Center Pivot Irrigation Systems. The University of Georgia, Department of Crop and Soil Sciences.UGA Cooperative Extension C 911. 4p.

McCann I. and Adkins. J. 2006. Center-pivot irrigation system evaluations in Delaware: preliminary results. Mid-Atlantic Grain and Forage Journal. Volume 10, p. 6-8.

Merriam J.L. and Keller J. 1978. Farm irrigation system evaluation: A guide for management. Utah State Unive. Utah. p.271.

Msibi S.T., Kihupi1 N.I., Tarimo A.K.P.R. and Manyatsi A.M. 2014. Technical performance evaluation of center pivot sprinkler irrigation system at Ubombo sugar estate, Swaziland. International Journal of Agricultural Science and Bio resource Engineering Research, 3(1&2): 23-38.

Roland L. 1982. Mechanized sprinkler irrigation. FAO, Irrigation and Drainage, NO.35, 409 p.