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Optimal water management in small-scale tank irrigation systems |
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| Affiliation: | 1. Graduate School of Agricultural Science, Kyoto University, Kitashirawaka-oiwake-cho, Sakyo-ku, Kyoto 606-8502, Japan;2. Agricultural Research Station, Kpong, Faculty of Agriculture, Ghana University, P.O. Box 68, Accra, Ghana;1. School of Chemical Engineering and Energy, Zhengzhou University, Zhengzhou, China;2. GRESE EA 4330, Université de Limoges, Limoges, France;3. INSERM, U1092, Limoges, France;1. Department of Mathematics, Harbin Institute of Technology, Harbin 150001, China;2. College of Science, Heilongjiang Bayi Agricultural University, Daqing 163319, China |
| Abstract: | The small-scale tank irrigation system is an effective option for sustainable agricultural water development. The management strategy for water release in such a system is considered in the framework of variational calculus. A minimum principle is deduced to characterize an optimal strategy minimizing a performance index that evaluates water content deviation in the command area and the time when the irrigation tank dries up. The optimal strategies are demonstrated in two practical example systems. |
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