东亚地区低层大气环流季节性变化与粘虫远距离迁飞

我国位于盛行的东亚季风区域内,季节变化明显。粘虫(Mythimna separata Walker)远距离北迁南回,与东亚地区低层大气环流季节性变化有着密切的关系。因此根据诱蛾资料和气象观测记录,着重对我国粘虫的迁飞方向、迁飞高度、迁飞界限、起飞降落条件以及虫源基地等问题进行分析,绘制我国粘虫迁飞路径图,是十分必要的。

RELATION BETWEEN LONG-DISTANCE MIGRATION OF THE ORIENTAL ARMYWORM AND THE SEASONAL VARIATION OF THE GENERAL CIRCULATION OVER EAST ASIA

Based on an analysis on the surface climatological front, the position of 500 mb characteristic contour, the temperature, humidity and flow fields in the lower atmosphere, it is considered that the migratory orientation of the oriental armyworm (Mythimiia, separata walker) agrees with the prevailing wind at 1,500 rri) the northward or southward movement of armyworm flight varies with the seasonal change of the surface climatological front and the average seasonal position of the 500mb characteristic contour...