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本文应用农业气象学原理和方法，根据实测资料，计算分析了枣麦间作系统中枣树带遮荫宽度及荫影内的相对光照度的时空变化规律；以及遮荫区、非遮荫区内小麦群体的光能铅直分布特点。应用数理方法，模拟了遮荫区及非遮荫区内小麦群体光能铅直分布曲线。结果表明，南北走向的枣带每天早、晚其遮荫区域较宽，相对光照度较大，中午前后，遮荫区域较窄，相对光照度较小；尽管遮荫区与非遮区内小麦群体的光能铅直分布有明显的差异，但二者都附合高斯曲线的递减规律。
In this paper, using the principle and method of agricultural meteorology, according to the measured data, the spatial-temporal variation of the shade width and the relative illuminance within the shade of jujube tree in the jujube-wheat intercropping system was calculated and analyzed. Group of vertical distribution of light energy characteristics. Mathematical methods were used to simulate the vertical distribution of light energy in the wheat population in shady and non-shaded areas. The results showed that the jujube with north-south direction had a wider shade area and a higher relative illumination intensity at early morning and late afternoon. Before and after noon, the shaded area was narrower and the relative illumination intensity was smaller. Although the shaded and non-shelled wheat populations There is a clear difference in the vertical distribution of light energy, but both are accompanied by the decreasing law of the Gaussian curve.