小麦田间节肢动物群落结构研究

[目的]阐明群落中优势种群的变动规律。[方法]采用系统分析方法研究小麦田节肢动物的物种构成、物种性质、群落丰富度、均匀度、多样性、集中度及其时间动态。[结果]合肥地区小麦田中后期节肢动物数量共10027头，33种，分属15目25科；昆虫纲18科、蛛形纲7科。其中天敌13科，害虫8科，中性昆虫4科共28种。小麦田非天敌亚群落主要势种蚜科和蓟马科丰盛度分别为0．62350、0．111 49；天敌亚群落主要优势种群分别为异色瓢虫和八点球腹蛛，其丰盛度分别为0．250482、0．191715。小麦田节肢动物群落4项指标随时间的变化均呈一定的规律性，其中群落丰富度和多样性指数规律性最强。[结论]为麦田害虫综合治理提供了理论依据。

Study on Community Structure of Arthropod in Wheat Field

[Objective]The aim was to elucidate change law of dominant species in community.[Method]Systematic analysis method was adopted to study species composition,properties,community richness,evenness,diversity,concentration and temporal dynamics of arthropod in wheat field.[Result]The results showed that there are 33 species arthropod animals at middle and late stage in Hefei region wheat filed.The total number is 10 027,belonging to 15 orders,25 family;insecta includes 18 family,arachnida is 7.Among which,natur...