摘要
论述了城市化过程中城市昆虫特别是城市绿地昆虫群落的变化特点,认为城市昆虫群落存在种类单一、多样性低、数量变动大、对人工环境的依存度高、天敌种类少等方面的变化,这些变化主要是由于原始栖息环境的改变、城市景观的变化、环境污染、不恰当的害虫防治策略、外来生物的入侵等原因造成的。还提出了城市昆虫的调控和保护城市昆虫的多样性的方法,强调城市昆虫重在数量的调控,并通过生态绿化、增加乡土植物及生物多样性等措施达到有虫不成灾的目的。
Changes on characteristics of urban insect community especially on urban landscape insect in urbanization are discussed in this paper. Urban insect community presences their especial characters, such as simplify insect species, low diversity, quantity fluctuated greatly, dependence on man-made environmental highly, and lack of natural enemy. The main reason of the changes is the transform of insect originality inhabit, urban landscape, city environment pollution, impertinent strategy in pests control and alien pest inbreak. The methods of urban insect regulation and control and its diversity conservation are also put forward in the paper. The author emphasizes that urban insect control is its quality regulation. City virescence, planting more native plant and increasing biodiversity is the good way to increase more insect species but no harmful in the city.
基金
江苏省环保厅资助项目(2005012)
关键词
城市化
昆虫
多样性
Urbanization
Insect
Diversity
