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| Influence factors of muddy water film hole irrigation infiltration |
| ZHONG Yun1, FEI Liangjun1, FU Yuliang1, JIN Shijie1, WANG Jinhui2 |
| 1.Institute of Water Resources Research, Xi′an University of Technology, Xi′an, Shaanxi 710048, China; 2.Northwest Research Institute of Engineering Investigations and Design, Xi′an, Shaanxi 710003, China |
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Abstract In orded to reveal the difference of muddy water infiltration and clean water infiltration, through the test data of free infiltration of muddy water film hole irrigation, analyzed the influence of free water infiltration capacity of muddy water film hole irrigation, such as clay and sand grade,size of film hole,soil bulk density and initial soil water content were researched.The results show that various factors all have a significant impact on the film hole irrigationfree infiltration capcity,putting forward the relationship between the influence factors and the infiltration capacity of muddy water film hole irrigation.And the model of clay and sand grade,size of film hole,soil bulk density and cumulative infiltration volume per unit film hole area of free infiltration of muddy water film hole irrigation of initial soil water content and steady infiltration rate was established, moreover, its correlation coefficient is greater than 0.960 0. Based on the model, the cumulative infiltration volume per unit film hole area and steady infiltration rate can be obtained, further judging the free infiltration capacity in soil under muddy water film hole irrigation. The results could provide the reference for further studies of muddy water film hole irrigation free infiltration law and muddy water film hole irrigation technology.
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Received: 23 March 2016
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