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昆虫种群动态的内涵可分为空间、数量和时间这三个范畴。本文应用模糊聚类分析方法研究烟蚜的种群动态。文中以有蚜株率(%)、百株蚜量(头/百株)和聚集度指标(m/m)作为反映烟蚜种群动态特征的三个指标,运用系统论和集合论理论将烟蚜在烟田的消长过程分成5个亚系统,这5个亚系统是:烟苗移栽后的伸根期、伸根后期到旺长期、旺长末期到成熟初期、成熟期、成熟后期,并对这5个亚系所表征的烟蚜种群动态进行了具体分析.
The connotation of insect population dynamics can be divided into three categories: space, quantity and time. In this paper, the population dynamics of Myzus persicae were studied by fuzzy clustering analysis. In this paper, the aphid population rate (%), the number of hundred aphids (head / one hundred) and the degree of aggregation index (m / m) as the three indicators to reflect the dynamic characteristics of the population of Myzus persicae, the system theory and set theory, Aphids in the tobacco growth and decline process is divided into five sub-systems, the five sub-systems are: tobacco seedlings after transplanting the rooting period, the late growth to the Mongolian long, Mongol long end to maturity, maturity, maturity, The dynamics of Myzus persicae population characterized by these five subfamilies were analyzed.