农田灌溉水量优化分配模型的研究

摘要

The research aimed to get a better calculation method for Jensen model, and overcome the complexity of traditional calculation method. So optimized calculation program was designed, which could distribute the limited water resource rationally and the sensitive index λ to lack of water in each stage, and the maximum value of the water production function was gained. The optimized program was validated by experiment data. Result showed that the optimized program could achieve model solution under the constrained condition.%在对作物水分生产函数、优化理论深入研究的基础上,应用MATLAB编制有限灌水量优化分配的程序,克服了常规的对Jensen模型求解所用的动态规划逐次渐近法(DPSA)计算繁琐等缺陷.该优化程序可根据供水量、作物腾发量约束条件及作物在不同生育阶段缺水敏感指数,对有限的水资源进行合理的分配,使水分生产函数最大.