我国北方稻区稻飞虱的成灾机制：一个假说

本文通过对大量文献资料的综合分析，从飞虱的飞行特性和北迁运载气流入手，以东亚大气低层环流为背景审视飞虱在有限时间内远迁北方致灾的成因机制，提出了以北上低空急流的时空变化与南方大发生虫源迁出期（区）相吻合、其前沿所至与北方迁入区相一致作为北方稻虱成灾的启动因子的假说．并提出了验证该假说的研究方法和技术路线，为揭示北方稻虱成灾的奥秘，完善灾变监测技术和预警系统奠定了基础。

EXCITING MECHANISM OF RICE PLANTHOPPER PLAGUES IN NORTHERN CHINA:A HYPOTHESIS

A hypothesis on the exciting mechanism of rice planthopper plagues in northern China was presented based on the migratory behavior of BPH and WBPH, and the general circulation of the atmosphere in East Asia. It is suggested that the plague will be triggered when the temporal and spatial variation of the northward low level jet coincides with the emigration periods and regions of the outbreak populations of BPH and WBPH in central eastern China, and that the plague spots will be consistent with the forward position of the low level jet. where rainstorms are generally expected.Furthermore, the research methodology for the verification of the hypothesis was discussed.