عنوان مقاله [English]
نویسندگان [English]چکیده [English]
In most of the countries in the world, even in the developed countries, surface irrigation is still one of the important irrigation methods in irrigated agriculture. It is estimated that more than 90 percent of the irrigated lands are irrigated with surface irrigation methods. Since determination of optimum field’s dimensions, including slope, inflow rate, and irrigation time, play an important role in enhancement of application efficiency and reduction of projects costs. Therefore, this research was conducted in the Ramshir irrigation and drainage network in the Khuzestan province (namely Velayate plan) with the objectives of determining fields’ dimensions, design and management parameters of border irrigation with closed-end regime and for achieving higher application efficiency and distribution uniformity. Using water advance and recession measurements along the border length and use of a comprehensive surface irrigation model, that is to say, WinSRFR-3.1 model, the soil infiltration parameters of the area were determined. Hence, the model was calibrated and the parameters of the best fitted infiltration equation, based on the Kostiakov-Lewis equation, was determined. Also by using the simulation part of the model, the dimensions and other design and management parameters of border irrigation, with closed-end regime cultivated with wheat crop, was determined. Based on results and with regards to proper application efficiency and distribution uniformity, the border design alternative of 7 m wide, 200 m length, and slopes of 0.005 to 0.001 m/m was a proper alternative for all ranges of selected inflow discharges (10-20 lit/s) and net irrigation depths of 50 to 90 mm. However, based on results, the design alternative of 200 m border length and longitudinal slope of 0.0005 m/m is the best alternative with regards to higher application efficiency. Moreover, the longitudinal slope of 0.0005 m/m is an ideal slope for all combinations of design alternatives with fair application efficiencies. Basically, the border length of 300 m and higher are not a suitable option for all selected slopes and low inflow rates of less than 10 lit/s. Finally, in the Ramshir irrigation and drainage network, if the field’s dimensions together with the other design and management parameters is set properly, achieving high application efficiency, even higher than 70 percent, in the border irrigation for many design alternatives is easily possible.
Abbasi, F. 2012. Principles of Flow in Surface Irrigation. IRNCID Pub. No. 152. Field Working Group. Iranian National Committee on Irrigation and Drainage (IRNCID). (in Persian)
Abbasi, F. and Sheini-Dashtgoal, A. 2015. Evaluation managerial options for improving furrow irrigation performance in Dehkhoda sugarcane agro-industry. Research Report No. 41843. Iranian Agricultural Engineering Research Institute (AERI). (in Persian)
Anon. 2009. WinSRFR 3.1 User Manual. USDA/ARS/Arid-Land Agricultural Research Center. U. S. Department of Agriculture Agricultural Research Service. Arid-Land Agricultural Research Center. 21881 N. Cardon Lane, Maricopa, AZ 85238.
Anon. 1989. Guidelines for Designing and Evaluating Surface Irrigation Systems. FAO Pub. Chap. 5: Surface Irrigation Design.
Hart, W. E., Collins, H. G., Woodward, G. and Humpherys, A. S. 1980. Design and Operation of Gravity or Surface Irrigation Systems. In: Jensen, M. E. (Ed.) Design and Operation of Farm Irrigation Systems. ASAE Monograph No. 3. American Society of Agricultural Engineers. St. Joseph, MI.
Makari-Gharoodi, A., Liaghat, A. M. and Nahvinia, M. J. 2013. Use of WinSRFR 3.1 model in simulation of furrow irrigation. Iranian J. Irrig. Drain. 7(1): 59-67. (in Persian)
Moridnezhad, A. Kavei-Dilami, R. and Saadi, A. 2010. Optimization of furrow irrigation under condition implemented in Salman-e-Farsi agro-industry using WinSRFR 3.1 software. Proceedings of the 3rd National Conference on Management of Irrigation and Drainage Networks. Feb. 29-March 2. Faculty of Water Sciences. Shahid Chamran University. (in Persian)
Noorabadi, H., Sadroddini, S. A. A., Nazemi. A. H. and Dalir Hassannia, R. 2013. Simulation of furrow irrigation using WinSRFR 3.1 and its evaluation. Proceedings of the 1st Irrigation and Water Productivity. Iranian Association on Irrigation and Drainage. Jan. 30. Ferdousi University of Mashhad. Iran. (in Persian)
Taghizadeh, Z., Vetdinezhad, V. R., Ebrahimian, H. and Khanmohammadi, N. 2012. Field assessment and evaluation of surface irrigation system using WinSRFR: case study of furrow irrigation. J. Water Soil (Science and Industry of Agriculture). 26(6): 1450-1459.
Walker, W. R. and Skogerboe, G. V. 1987. The Theory and Practice of surface Irrigation. Chapter 8: Volume Balance Field Design. Logan. Utah.