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[1]ZHANG Xin-min,ZHANG Ji-xiao,SHAN Yu-yang.Numerical Simulation of Infiltration and Cross-section Optimization under Furrow Irrigation[J].Research of Soil and Water Conservation,2014,21(01):137-141.

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Numerical Simulation of Infiltration and Cross-section Optimization under Furrow Irrigation

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 21 Number of periods: 2014 01 Page number: 137-141 Column: Public date: 2014-02-28

Title:: Numerical Simulation of Infiltration and Cross-section Optimization under Furrow Irrigation

Author(s):: ZHANG Xin-min¹, ZHANG Ji-xiao², SHAN Yu-yang¹; 1. Gansu Research Institute for Soil and Water Conservation, Lanzhou 730020, China;
2. College of Engineering, Gansu Agricultural University, Lanzhou 730070, China

Keywords:: furrow irrigation; simulation of infiltration; cross-section optimization; uniformity

CLC:: S271

DOI:: -

Abstract:: The hydraulic parameters of the typical soil collected from Minqin in the Shiyang River valley were tested. Water movement was simulated by Hydrus software under different types of furrow and ridge width, respectively. Both wetting front and irrigation uniformity was studied, and the two-dimensional infiltration model was established. The results showed that the relationship between vertical wetting front and furrow bottom width follows a positive correlation under the same furrow type, as well as a positive relationship was found between the water depth and vertical wetting front; cumulative infiltration was determined by wetted perimeter in the furrow irrigation and was found to follow a power function and linear function at the beginning infiltration and later, respectively; both furrow depth and water depth were same, uniformity in V type was higher than in trapezoid type, the deeper water level was and the higher uniformity was for the identical soil.

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