One of the relatively new surface irrigation methods is the surge method in which water flows discontinuously. Compared to classic methods, water moves at higher velocities and, as a result, the difference in the time of infiltration between the beginning and the end of the furrow will be minimized, with more infiltration uniformity along the furrow. One of the surface irrigation simulation models is SIRMOD. This model is able to simulate the surge irrigation according to the flow cross section characteristics, the parameters involved in Kostiakof's infiltration equation and other parameters of the surge. In an attempt to use the model, the effect of the variation of different surge parameters using silty loam soil, has been investigated and finally the optimum combination that gives the best efficiency and superior uniformity was identified. The simulation was conducted using four flow rates smaller than and one greater than the erosive flow rate cycle ratios between 0.25 to 0.75 and by fixing the cycle period and other input parameters. The results show that in silty loam soils, the maximum uniformity has been seen in cycle ratios of 2:3 and 3:4 and flow rate of 2 l/s and the maximum efficiency took place in 0.5 l/s with cycle ratio of 3:4. |
- عباسی ف و محمودیان شوشتری م (1375). مطالعه پیشروی جریان آب در آبیاری جویچهای با استفاده از مدل اینرسی صفر، مجموعه مقالات دومین کنگره ملی مسائل آب و خاک کشور.
- موسوی جهرمی س ح و قویدل م ع (1377). آنالیز حساسیت مدلهای ریاضی آبیاری نواری، دومین کنفرانس هیدرولیک ایران، دانشگاه علم و صنعت 25تا 27آبان صفحات 193تا202 .
- Bishop, A. A. (1980). Surge flow, the most efficient irrigation system. Crop and Soil Mag. pp: 13-16 .
- Bishop, A. A., Walker, W. R., Allen, N. L. and Poole, G. I. (1981) . Furrow advance rates under surge flow system. Journal of the Irrigation and Drainage Division .ASCE, 107 (IR3):257-264 .
- Coolidge, P. S., Walker, W. R. and Bishop, A. A. (1982) . Advance rate and runoff surge flow furrow irrigation. Journal of the Irrigation and Drainage Division .ASCE, 108 (IR1): 35-42 .
- Esfandiari, M. and Maheshwari, B. L. (2000) . Sensitivity analysis a furrow irrigation model to input parameters. Agriculture Engineering Journal, 9 (3,4): 117-128.
- Goldhamer, D. A., Alemi, M. H. and Phene, R. C. (1987) . Surge vs. continuous-flow irrigation . California Agriculture , sep-oct . pp: 29-32 .
- Izuno, F. T., Podmore, T. H. and Duke H. R. (1985) . Infiltration under surge irrigation . Trans. of the ASAE , 28 (2):517-521
- Kemper, W. D., Trout, T. J., Humpherys, A. S. and Bullock, M. S. (1988) . Mechanisms by which surge irrigation reduces furrow infiltration rates in a silty loam soil . Trans. of the ASAE . 31 (3): 821-829 .
- McClymont, D. J., Rain, S. R. and Smith, R. J. (1996) .The prediction of furrow irrigation performance using the surface irrigation model (SIRMOD) . Irrigation Australia. Annual Conference of Irrigation Association of Australian , Adelide .
- Maheshwari, B. L., McMahan, T. A. and Turner, A. K. (1990) . Sensitivity analysis of parameters of border irrigation model . Agriculture Water Management 18 (1990) , Elsivier Science Publisher .
- Samani, Z. A., Walker, W. R. and Willardson L. S. (1985) . Infiltration under surge irrigation . Trans. of the ASAE , 28 (5): 1539-1542 .
- Samani, Z. A. and Yitayew, M. (1989) . Changes in soil properties under intermittent water application . Irrig. Sci. . 10: 177-182 .
- Stringham, G. E. and Keller, J. (1979) . Surge flow automatic irrigation . In: Proceeding of the Irrigation and Drainage Specialty Conference . ASCE , 132-142 .
- Walker, W. R. (1987) . Surface irrigation simulation software , (SIRMOD) , U.S.A., Utah State University , Logan-Utah .
- Walker W. R. and Skogerboe, G. V. (1987) . Surface irrigation :Theory and practice . Prentice-Hall , Inc. Englewood Cliffs, VJ .
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