| Simulation experiment on soil water infiltration characteristics under ridge-furrow irrigation |
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| DOI：10.7606/j.issn.1000-7601.2011.03.05 |
| Key Words: ridge-furrow irrigation intercropping wetting front soil moisture content bed film-covering |
| Author Name | Affiliation | | WANG Zikui | College of Water Resources and Architectural Engineering, NorthuvestA & F University,Yangling ,Shaanxi 712100,China | | WU Pute | College of Water Resources and Architectural Engineering, NorthuvestA & F University,Yangling ,Shaanxi 712100,China
National Engineering Research Center for Water Saring Iigation at Yangling, Yangling, Shaanxi 712100,China
Institute of Soil and Water Conseroation, Chinese Acadermy of Science and Ministry of Water Resources,Yangling, Shaanxi 712100, China | | ZHAO Xining | College of Water Resources and Architectural Engineering, NorthuvestA & F University,Yangling ,Shaanxi 712100,China
National Engineering Research Center for Water Saring Iigation at Yangling, Yangling, Shaanxi 712100,China
Institute of Soil and Water Conseroation, Chinese Acadermy of Science and Ministry of Water Resources,Yangling, Shaanxi 712100, China | | ZHANG Yongyong | Institute of Soil and Water Conseroation, Chinese Acadermy of Science and Ministry of Water Resources,Yangling, Shaanxi 712100, China | | CHEN Xiaoli | National Engineering Research Center for Water Saring Iigation at Yangling, Yangling, Shaanxi 712100,China | | ZHANG Fengyun | Institute of Soil and Water Conseroation, Chinese Acadermy of Science and Ministry of Water Resources,Yangling, Shaanxi 712100, China |
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| Abstract: |
| In order to probe the soil water infiltration characteristics for ridge furow irrigation, a field test of ridge furrow intercropping， simulation experiment of ridge furow irrigation was caried out. The results showed that，in ridge-
furrow irrigation, vertical and horizontal wetting front migration distance and infiltration time were positively related, and the vertical wetting front migration distance was longer than that in general furrow irrigation ; The soil moisture content in furrow and slope increased rapidly during irmigation, and the soil moisture content in ridge increased slowly after irrigation by the affect of lateral soil water potential ; Moreover, the results also showed that bed film: covering was conducive to soil water lateral infiltration，the vertical infiltration was reduced, soil water distribution was more uniform，and the water seepage decreased obviously compared with no bed covering. |
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