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用Weibull函数为骨架,组建了褐飞虱成虫的具有年龄特征的存活率和生殖率模型。经检验,适合性显著。褐飞虱的雌成虫存活率随温度的升高而降低,期望寿命缩短,但在水稻不同生育期间的差异不大。生殖量在26℃左右时及抽穗期较大。尽管在温度较高时存活率低,产卵量小,但由于生殖高峰提前出现,就使得实际种群增长率仍较高。从而认为加入各种参数的年龄特征,比只考虑其总量特征,在组建害虫种群预测和管理系统模型时,更具有积极意义。
Using Weibull function as the skeleton, the age-specific survival rate and reproductive rate of BPH adults were established. After testing, suitability is significant. The survival rate of female adult N. lugens decreased with the increase of temperature and the life expectancy was shortened, but there was no significant difference among the different growth stages of rice. Reproductive volume at about 26 ℃ and heading date. Despite low survival rates at low temperatures and small fecundity at higher temperatures, the actual population growth rate is still high due to premature emergence of reproductive peaks. Therefore, it is considered that adding the age characteristics of various parameters is more positive than considering only the total characteristics of the pest population prediction and management system model.