通过对实例的剖析研究，较全面地探讨稻田生态系统中水稻害虫及其天敌在生境间迁移的监测方法和有关原理。
This paper reviewed the sampling and trapping methodology and principles for monitoring the movement rate, direction and distance of arthropods between habitats in rice ecosystem.
建立参数自适应律，调整控制系统参数，使天敌-害虫的种群密度渐进的跟踪理想轨迹，保证了该系统的稳定性。
The parameter adaptive law is formed, we adjust the parameters to make sure the density of spruce aphides and their predator track the ideal trajectory, the stability of the system is guaranteed.
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