水分胁迫条件下稻田优化灌溉制度的研究

本文通过对非充分灌溉条件下水稻优化灌溉制度如何制定进行了研究。其特点是将作物产量模型与耗水规律模型相结合,以相对产量最高为目标函数,建立了优化决策系统,并利用多目标规划进行求解。该研究成果可使有限的水量在作物生育期内发挥最大的效率,对优化配置水资源,实现农业高效用水具有重要作用。实例研究结果说明,所建模型及求解方法是合理与可行的,不但提高了水分利用效率,还为查哈阳灌区水资源的优化利用提供了科学依据。

Study on Optimization Irrigation Procedure of Rice Filed under Water Stress

The paper studies how to draw the rice optimal irrigation system under the condition of non-sufficient irrigation.The character is that the model of yield connect with the model of water-consuming law.In order to get max object function and max yield,it set up optimization irrigation procedure with multiobjective programming.This result can get max efficiency under limited water consumption.It very important for optimized water resource and realized modern agriculture.The results show that this model improve efficiency and it provides scientific basis for Cha Hayang irrigation district.