摘要
对浙江省嘉兴市新丰乡1976～1988年褐飞虱种群与8、9月当地气温的关系进行了研究。模拟研究表明气温是影响褐飞虱迁入后种群发展的重要因子,单一年度间气温的差异可分别导致四、五代高峰期5和10d的差异,高峰虫量1.63和2.25倍的差异;9月份气温对褐飞虱种群增长的影响大于8月份的气温;而9月中旬是发生上述影响的关键时期。这一结果与嘉兴市历年发生实况相符。模拟分析也揭示了气温对种群动态的影响不仅与褐飞虱生物学特性有关,亦与某一特定地点的种群发展和气温变化特点有关。
Based on the data from Jiaxing, Zhejiang Province in 1976--1988, the relationship between population dynamics of brown planthopper Nilaparvata lugens stal and temperature was studied. Simulation study indicated that temperature was one of the key factors affecting population development after immigration; the only temperature differents among years could cause 5 and 10--day discrepancies in peak time, and 1. 63 and 2. 25 times discrepancies in peak size, respectively to the fourth and fifth genera- tion; the effects of temperature in September on population growth was more important than that in Au- gust; while the mid- September was the key period for temperature effects. The results are consistent with the historical data in Jiaxing, Zhejiang. Meanwhile, simulation analysis revealed that the effects of temper- ature on population dynamics were related to both characteristics of population development and season- al variance of temperature at a particular area, as well as biology of brown planthopper.
出处
《中国水稻科学》
CAS
CSCD
北大核心
1992年第1期21-26,共6页
Chinese Journal of Rice Science
基金
浙江省自然科学基金
关键词
褐飞虱
种群动态
气温
模拟
水稻
Nilaparvata lugens
Population dynamics
Temperature
Simulation
