On the condition of winter wheat-summer corn cropping system in Beijing, the nonlinear goals programming model was used to optimize the water and nitrogen management under various rainfall year types.

• 摘要本文应用了非线性目标规划模型，用线性化逼近法求解，对冬小麦-夏玉米种植制度下，不同降雨年型的水氮管理措施进行了优化。