Tianjin Key Laboratory of Animal and Plant Resistance, College of Life Sciences, Tianjin Normal University, Tianjin300387, China.
Bull Entomol Res. 2021 Oct;111(5):553-559. doi: 10.1017/S0007485321000316. Epub 2021 Jun 15.
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.
植被群落影响草原昆虫群落的组成和多样性。为了探讨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，并在天津滨海国际机场专门种植了高羊茅（Festuca arundinacea）和黑麦草（Lolium perenne）。共采集到 1886 只昆虫，代表 8 个目、23 科、29 种；优势类群为直翅目（Orthoptera）、瓢虫科（Coleoptera）和摇蚊科（Diptera）。草坪区昆虫的数量和生物量明显低于对照区，黑麦草区分别减少了 45.8%和 48.5%。在所有区域，昆虫数量和生物量在夏季达到峰值，随着温度降低，个体和类群的数量减少。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均低于对照区。研究结果表明，通过机场草地植被的人工调控可以有效降低昆虫的丰度、生物量和多样性，单一草坪草（特别是黑麦草）的种植效果最大。本研究为机场昆虫的生态防治提供了理论依据。
