0為控制條件,對不同技術(shù)要素組合下的灌水過程進(jìn)行模擬,分析畦灌技術(shù)要素和灌水性能指標(biāo)值的對應(yīng)關(guān)系,結(jié)合畦灌數(shù)值模擬試驗結(jié)果,提出3種代表性畦田長度(50、100、150 m)下田面標(biāo)準(zhǔn)差、坡度、入畦單寬流量等畦灌要素的建議范圍。在不考慮畦田布置優(yōu)化方案的條件下,3種代表性畦長畦灌最小灌水定額不宜低于84、117、148 mm;在地面灌溉技術(shù)及畦田布置方案優(yōu)化的條件下,3種代表性畦長畦灌最小灌水定額不宜低于71、75、79 mm。"/>

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基于SISM模型和畦灌技術(shù)的冬小麥最小灌水定額研究
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兵團(tuán)科技攻關(guān)項目(2019AB035)和國家自然科學(xué)基金項目(52009143)


Minimum Irrigation Quota of Winter Wheat Based on SISM Model and Border Irrigation Technology
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    為確定滿足畦灌技術(shù)約束下的冬小麥最小灌水定額,采用地面灌溉水流運(yùn)動模擬模型SISM,結(jié)合華北地區(qū)畦灌現(xiàn)狀,考慮畦田長度、坡度、田面標(biāo)準(zhǔn)差、微地形空間分布差異及入畦單寬流量等要素,設(shè)計53.088種畦灌技術(shù)要素組合,以地面灌溉水流覆蓋整個田塊和最小灌水深度Zmin>0為控制條件,對不同技術(shù)要素組合下的灌水過程進(jìn)行模擬,分析畦灌技術(shù)要素和灌水性能指標(biāo)值的對應(yīng)關(guān)系,結(jié)合畦灌數(shù)值模擬試驗結(jié)果,提出3種代表性畦田長度(50、100、150 m)下田面標(biāo)準(zhǔn)差、坡度、入畦單寬流量等畦灌要素的建議范圍。在不考慮畦田布置優(yōu)化方案的條件下,3種代表性畦長畦灌最小灌水定額不宜低于84、117、148 mm;在地面灌溉技術(shù)及畦田布置方案優(yōu)化的條件下,3種代表性畦長畦灌最小灌水定額不宜低于71、75、79 mm。

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    The irrigation process under different combinations of border irrigation technology elements was simulated to obtain the corresponding border irrigation performance index values, and determine the minimum irrigation quota under different combinations of border irrigation technology elements in North China Plain. Combined with the current situation of border irrigation in North China Plain, the border length, slope, field leveling accuracy, micro-topography spatial distribution difference and border unit width flow were taken into account, including 53088 border irrigation technology elements in total. The whole field was covered with the surface irrigation water, the minimum irrigation depth Zmin>0 was taken as the control condition, and the SISM model was taken to simulate the irrigation process under the combination of different technology elements, analyze the corresponding relationship between border irrigation technology elements and irrigation performance index values, and by combining with the test results of border irrigation numerical simulation and relevant regulations of surface irrigation, the recommended range of border irrigation elements under three representative lengths of border field 50 m, 100 m and 150 m (such as field leveling accuracy Sd, slope Sp, and unit width flow q) was proposed. The minimum irrigation quota of three representative border lengths should not be lower than 84 mm, 117 mm and 148 mm under normal conditions, and the minimum irrigation quota of three representative border lengths should not be lower than 71mm, 75mm, and 79 mm under the optimized conditions.

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史源,白美健,李益農(nóng),章少輝,李亦凡,戴瑋.基于SISM模型和畦灌技術(shù)的冬小麥最小灌水定額研究[J].農(nóng)業(yè)機(jī)械學(xué)報,2021,52(8):278-286. SHI Yuan, BAI Meijian, LI Yinong, ZHANG Shaohui, LI Yifan, DAI Wei. Minimum Irrigation Quota of Winter Wheat Based on SISM Model and Border Irrigation Technology[J]. Transactions of the Chinese Society for Agricultural Machinery,2021,52(8):278-286.

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  • 收稿日期:2021-03-08
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  • 在線發(fā)布日期: 2021-08-10
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