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Improvement of the estimation of the infiltration function in surface irrigation systems

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  • Mohamed Khaled Salahou
  • Wei Zhi
  • Xiaoyuan Chen
  • Yupeng Zhang
  • Haishen Lü
  • Xiyun Jiao

Abstract

Surface irrigation systems are widely used on the North China Plain. The design of surface irrigation systems can be improved by developing simulation models including the advanced trajectory, recession trajectory, and infiltration time. Therefore, the objectives of this study were as follows: (1) to evaluate different models to simulate the advanced and recession trajectories, (2) to propose a new method that reduces the required observation data for estimating the infiltration time, and (3) to evaluate the accuracy of the proposed infiltration function based on the modified infiltration time function. Field experiments were conducted. The results indicated that the power function can represent the advanced and recession trajectories well. A modified function that describes the infiltration time has a high correlation and accuracy with the measured data and can be used to estimate the infiltration time. The proposed infiltration function based on the modified infiltration time function is accurate and can be used to estimate the infiltration function.

Suggested Citation

  • Mohamed Khaled Salahou & Wei Zhi & Xiaoyuan Chen & Yupeng Zhang & Haishen Lü & Xiyun Jiao, 2023. "Improvement of the estimation of the infiltration function in surface irrigation systems," PLOS ONE, Public Library of Science, vol. 18(11), pages 1-17, November.
    • Handle: RePEc:plo:pone00:0291578
    DOI: 10.1371/journal.pone.0291578
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    References listed on IDEAS

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    1. Abdelmonem M. AMER & Kamal H. AMER, 2010. "Surface irrigation management in relation to water infiltration and distribution in soils," Soil and Water Research, Czech Academy of Agricultural Sciences, vol. 5(3), pages 75-87.
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