大气环流是形成大范围地区旱涝和温度异常,影响农作物生长发育和产量波动的主要原因。本文探讨了东北地区大豆单产与描述大气环流特征的综合指标——500hPa纬带谱参数的关系。揭示了农作物生育前期500hPa月平均的纬带谱参数与农作物产量有很好的时滞相关,其相关机理是大气环流自身的时滞相关以及大气环流与长期天气过程的有机联系。用这些参数组建的I_Dw予报方程,其历史拟合和外推都比较稳定,可以用于产量予报。 Atmospheric circulation is the main reason for the formation of drought and flood and temperature anomaly in large area, affecting crop growth and yield fluctuations. In this paper, the relationship between soybean yield per unit area in Northeast China and the characteristics of atmospheric circulation (500 hPa) is discussed. The results show that the 500hPa monthly mean latitudinal band spectral parameters have a good time-delay relationship with crop yield in the early stage of crop growth. The related mechanism is the time-delay correlation of the atmospheric circulation itself and the organic relationship between the atmospheric circulation and the long-term weather process. The I_Dw presupposition equation constructed with these parameters has a relatively stable historical fit and extrapolation and can be used for yield forecasting.