灵敏度分析显示，温度是影响褐飞虱种群数量动态的最关键因素，其次为初始迁入虫量、天敌和水稻生育期。
The sensitivity analysis showed that the temperature was the most important factor, the other key factors included initial population size, natural enemy and rice development stage.
两种群的生命阶段分为未成熟期和成熟期，只有在成熟期时，种群具有竞争力。
The life stages of the tow-species are immature and mature, only in the mature, the species have competition.
结果表明，卵期、 1龄幼虫期、蛹期的死亡率较大，分别为13 5 %、 18 2 %和19 0 % ，是影响种群数量增长的主要因子。
It was showed that high mortalities in the stages of egg(13 5%), 1st instar larvae(18 2%)and pupae(19 0%) were the main factors influencing the growth of the experimental population.
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