Abstract
Rice is the representative of hydrophilic and humid crops, which consumes a large amount of water in the field. Southern China is the main rice-producing area. Relatively, weak water-saving awareness under the condition of abundant rainfall, climate change, and seasonal drought results in water shortage increasingly prominent. Based on the comprehensive consideration of rice water demand, water production function, water sensitivity index, and so on, an optimal allocation model of irrigation water under insufficient irrigation conditions is constructed to maximize the total yield of rice crops. The multi-constraint model is solved by the target approximation algorithm and the genetic algorithm. The results show that the genetic algorithm can effectively allocate the limited irrigation water.
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Acknowledgements
Based on rice water requirement, water production function, and water sensitivity index, this paper adopts an optimal allocation model under the condition of inadequate irrigation that is established by taking maximum the total yield of field crops as the objective function, solves the multi-constraint model by means of target approximation algorithm and genetic algorithm, compares and analyzes the results. The results show that the genetic algorithm can effectively solve the optimal allocation of irrigation water and strictly meet the equality constraints compared with the target approximation algorithm; the optimal allocation model of irrigation water can reasonably distribute the limited irrigation water, so as to maximize the water production function and maximize the irrigation benefits.
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Jiang, X., Chen, W., Gu, H. (2020). Research on the Optimal Water Allocation of Rice Under Insufficient Irrigation Conditions. In: Patnaik, S., Wang, J., Yu, Z., Dey, N. (eds) Recent Developments in Mechatronics and Intelligent Robotics. ICMIR 2019. Advances in Intelligent Systems and Computing, vol 1060. Springer, Singapore. https://doi.org/10.1007/978-981-15-0238-5_53
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DOI: https://doi.org/10.1007/978-981-15-0238-5_53
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