天津农学院学报 ›› 2022, Vol. 29 ›› Issue (4): 65-69.doi: 10.19640/j.cnki.jtau.2022.04.013

• 研究与简报 • 上一篇    下一篇

基于畦田双侧灌水条件下灌水参数优化研究

高卓卓, 郑志伟通信作者, 豆静静   

  1. 天津农学院 水利工程学院,天津 300392
  • 收稿日期:2021-05-12 出版日期:2022-12-30 发布日期:2023-01-03
  • 通讯作者: 郑志伟(1981—),男,副教授,硕士,主要从事节水灌溉理论与应用技术研究。E-mail:zhiwei35883@163.com。
  • 作者简介:高卓卓(1996—),女,硕士在读,主要从事节水灌溉理论研究。E-mail:gaozhuozhuo_1107@163.com。
  • 基金资助:
    国家自然科学基金项目(51779174); 天津市“项目+团队”重点培养专项(XB202016); 天津市科技支撑重点项目(18YFZCS F00650)

Research on optimizing irrigation parameters based on irrigation on both sides of border field

Gao Zhuozhuo, Zheng ZhiweiCorresponding Author, Dou Jingjing   

  1. College of Water Conservancy Engineering, Tianjin Agricultural University, Tianjin 300392, China
  • Received:2021-05-12 Online:2022-12-30 Published:2023-01-03

摘要: 为减少畦灌灌水时长、设计合理的畦田规格、提高灌溉效率,采用田间畦块双侧灌水试验和WinSRFR5.1模型分析相结合的方法,模拟双侧地面灌溉的水流过程和灌水质量情况。以水流汇集处为界,将畦块双侧灌水试验分为两次坡度不同灌水试验,与WinSRFR5.1模型结合进行土壤入渗参数(入渗系数K和入渗指数α)率定和模拟灌水质量(灌水效率和灌水均匀度)等值线图,再对模拟结果进行对比分析。结果表明:畦块双侧灌水是可行的,相对于畦宽,畦长对灌水效率和灌水均匀度的影响更大。结合天津市武清区畦田现状,得到双侧灌水畦田的畦长、畦宽范围,即:单宽流量为2.96 L/(s·m)、畦宽为2.0~11.5 m、畦长为49~165 m,此时灌水效率和灌水均匀度均达到90%以上。

关键词: 双侧灌水, 畦灌, 灌水质量, WinSRFR

Abstract: In order to reduce the field irrigation time, design reasonable border field specifications, and improve irrigation efficiency, this study adopted the method of combining the field border double-sided irrigation experiment and WinSRFR5.1 model analysis to simulate the flow process and irrigation quality of double-sided surface irrigation. Taking the water flow confluence as the boundary, the field border double-sided irrigation test was divided into two irrigation tests with different slopes, and combined with the WinSRFR5.1 model to calibrate the soil infiltration parameters(infiltration coefficient K and infiltration index a)and simulate the irrigation quality contour map, and then compared and analyzed the simulation results. The results showed that field border double-sided irrigation was feasible. Compared with border width, border length changes had a greater impact on irrigation efficiency and irrigation uniformity. Combining with the status quo of border fields in Wuqing district, Tianjin city, the border length and width range of bilateral irrigation border fields were obtained: single width flow rate is 2.96 L/(s·m), border width is 2.0-11.5 m, border length is 49-165 m, and irrigation efficiency and irrigation uniformity are both above 90%.

Key words: irrigation on both sides, border irrigation, irrigation quality, WinSRFR

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