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| WinSRFR software-based optimization of horizontal border patch size in Hetao irrigation district |
| BAI Yinzhen1, WEI Zhanmin1, ZHANG Jian2, GAO Hongyan1,3, WEI Zihan1 |
| 1.College of Water Conservancy and Civil Engineering, Inner Mongolia Agricultural University, Huhhot, Inner Mongolia 010018, China; 2.The Inner Mongolia Autonomous Region Irrigation and Drainage Development Center, Huhhot, Inner Mongolia 010018, China; 3.Inner Mongolia Dengkou Pumping Irrigation Area Management Bureau, Baotou, Inner Mongolia 014040, China |
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Abstract In order to improve the quality of land resources and irrigation in the Hetao irrigation district, the size of the present border patch in a district is optimized based on measured water advance and recession data of horizontal border irrigation by using numerical and analytical methods. The irrigation quality index is calculated by using water balance method and calibrated by employing zero inertia model based on the design function of winSRFR software system and the field irrigation factors. The contours of irrigation quality index are obtained, the optimal ranges that meet the irrigation requirements and with good irrigation quality are determined. Typical patch layouts are put forward by considering the status of land ownership and land size, namely, layout 1: a patch with 102 m length, 65-95 m wide and 6 670-10 005 m2 area by merging border, ditch and border, layout 2: a patch with 154 m length, 65-110 m wide and 10 005-16 675 m2 area by combining border, ditch, border road and border.
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Received: 11 November 2015
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