The vegetation community affects the composition and diversity of the insect community in grasslands. To explore the effects of vegetation management on insect community abundance and diversity, regular mowing of the vegetation was conducted, and tall fescue (Festuca arundinacea) and ryegrass (Lolium perenne) were exclusively planted at Tianjin Binhai International Airport. A total of 1886 insects were collected, representing 8 orders, 23 families, and 29 species; Acrididae (Orthoptera), Coccinellidae (Coleoptera), and Chironomidae (Diptera) were the dominant taxa. The abundance and biomass of insects in the turf areas were significantly lower than those in the control area and were reduced by 45.8 and 48.5% in the ryegrass area, respectively. In all areas, insect abundance and biomass peaked in summer, and the abundance of individuals and taxa decreased as the temperature decreased. Greater diversity and richness were found in summer compared with the other two seasons, and the turf areas had lower diversity and richness indices than the control areas in spring and summer. Our results suggest that the abundance, biomass and diversity of insects can be effectively decreased by artificial regulation of grassland vegetation at the airport, the planting of a single turfgrass – specifically ryegrass had the greatest effect. The present study provides a theoretical basis for the ecological control of insects at the airport.

中文翻译：

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植被管理对天津滨海国际机场昆虫群落组成和多样性的影响

植被群落影响草原昆虫群落的组成和多样性。为探索植被管理对昆虫群落丰度和多样性的影响，对植被进行了定期修剪，高羊茅（羊茅) 和黑麦草 (黑麦草）在天津滨海国际机场独家种植。共采集昆虫1886种，分属8目23科29种；蝗科（直翅目）、瓢虫科（鞘翅目）和摇蚊科（双翅目）是主要的分类群。草坪区昆虫的丰度和生物量显着低于对照区，黑麦草区分别减少了45.8%和48.5%。在所有地区，昆虫丰度和生物量在夏季达到峰值，个体和类群的丰度随着温度的降低而下降。与其他两个季节相比，夏季的多样性和丰富度更高，而春季和夏季草坪区的多样性和丰富度指数低于对照区。我们的结果表明，丰度，机场草地植被的人工调控可以有效降低昆虫的生物量和多样性，其中种植单一的草坪草——特别是黑麦草效果最大。本研究为机场昆虫生态防治提供了理论依据。