| Determination of infiltration parameters and manning roughness according to process of water flow in border irrigation |
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| DOI：10.7606/j.issn.1000-7601.2011.01.09 |
| Key Words: principle of water volume balance water flow process Kostiakov model infiltration parameter Manning roughness |
| Author Name | Affiliation | | NIE Weibo | Institute of Water Resources, Xi'an University of Technology, Xi'an, Shaanxi 710048, China
Key Laboratory for Agricultural Soil and Water Engineering in Arid Area of Ministry of Education, Northwest A & F University, Yangling, Shaanxi 712100, China | | FEI Liangjun | Institute of Water Resources, Xi'an University of Technology, Xi'an, Shaanxi 710048, China | | MA Xiaoyi | Key Laboratory for Agricultural Soil and Water Engineering in Arid Area of Ministry of Education, Northwest A & F University, Yangling, Shaanxi 712100, China |
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| Abstract: |
| Based on the principle of water volume balance, a method was proposed to determine infiltration parameters and Manning roughness according to two groups of field irrigation data under blocked-end border irrigation. The validity of the proposed method is verified by experimental data, then the values of infiltration parameters and Manning roughness were introduced into the WinSRFR model. The process of water flow was simulated by WinSRFR model, and the simulated value had a good fit to the measured. The results show that infiltration parameters and Manning roughness can be effectively determined with the new method, which may lay a foundation for technical element design and operation evaluation of a border irrigation project. |
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