【摘要】 为了掌握黑麦草草坪昆虫群落结构及演替规律,对黑麦草草坪昆虫群落进行了系统调查,并对样本总量、丰富度、均匀度、多样性指数等重要指标进行了分析。结果表明:黑麦草草坪昆虫群落结构复杂,由13目51种昆虫组成,种类多,数量大,其中螨类和蚜虫是全年昆虫群落中的害虫优势种群,蜘蛛类和瓢虫类是全年昆虫群落中的主要天敌。黑麦草草坪昆虫群落的丰富度在9月份达到全年最高(39种),样本总量在5月份达到最高(1 539头),多样性指数在10月份达到最高(3.632 7)。黑麦草草坪昆虫群落演替过程可分为建群、发展、鼎盛、衰退4个阶段,为黑麦草草坪害虫综合治理提供了理论依据。更多还原

【Abstract】 To explore the insect community structure and succession rule in Lolium perenne lawn,the insect community was investigated systematically and four important indexes including sample total amount(S),richness(N),evenness(J),diversity index(H′)were analyzed.The results showed that the insect community was complicated,composed of 51 species in 13 orders.The dominant species of insect pests were mites and aphids,and the main natural enemies of insect pests were spiders and ladybirds in the insect community throughout the year.In the entire year,the value of N(39)was the highest in September,the value of S(1 539)was the highest in May,and the value of H′(3.632 7)reached the highest in October.The total course of the insect community succession could be divided into four phases:construction,development,high peak and decline,which provided scientific basis for IPM in Lolium perenne lawn.更多还原