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2010和2011年通过对无锡市建设用地(Ⅰ)、农村用地(Ⅱ)、湿地(Ⅲ)、林地(Ⅳ)和耕地(Ⅴ)中21个点位的蚊虫进行调查,分析了不同土地利用方式对蚊虫群落的影响。结果表明:共发现蚊虫5属10种,所有点位平均密度67.94只·台-1·h-1。不同土地类型的优势蚊种分别为:Ⅰ为淡色库蚊(Culex pipiens pallens),Ⅱ为三带喙库蚊(C.tritaen-iorhynchus),Ⅲ和Ⅳ都为淡色库蚊和三带喙库蚊,Ⅴ为淡色库蚊、三带喙库蚊、骚扰阿蚊(Ar-migeres subalbatus)和中华按蚊(Anopheles sinoensis);蚊密度依次为Ⅱ>Ⅲ>Ⅴ>Ⅳ>Ⅰ,除Ⅳ和Ⅰ外,其他各土地利用方式中的密度都差异显著(P<0.05);生物多样性依次为Ⅴ>Ⅳ>Ⅲ>Ⅱ>Ⅰ,其中Ⅴ、Ⅳ分别显著高于Ⅲ、Ⅰ、Ⅱ(P<0.05)。非度量多位尺度分析显示,在68%相似性水平下,除林地和耕地中的蚊虫群落有相似外,其他均不相似。转变成建设用地的环境蚊虫优势种向淡色库蚊单向转变,蚊密度和多样性显著降低。城市化后蚊虫及蚊媒病防制将可能会为以淡色库蚊及其传染病防制为主,三带喙库蚊及其传染病防制的重要性可能会降低。
In 2010 and 2011, 21 sites of mosquitoes in construction land (Ⅰ), rural land (Ⅱ), wetland (Ⅲ), woodland (Ⅳ) and cultivated land (Ⅴ) in Wuxi were investigated to analyze the effects of different land use types Impact on mosquito community. The results showed that there were 10 species of 5 genera in mosquitoes, with the average density of 67.94 · -1 · h-1 at all sites. The dominant mosquito species in different land types were: Ⅰ Culex pipiens pallens, Ⅱ Trichomonas trifoliata, Ⅲ and Ⅳ were Culex pipiens pallens and Culex tritaeniorhynchus, , Ⅴ were Culex pipiens pallens, Culex tritaeniorhynchus, Ar-migeres subalbatus and Anopheles sinoensis; mosquito density followed by Ⅱ> Ⅲ> Ⅴ> Ⅳ> Ⅰ, except Ⅳ and Ⅰ (P <0.05). The biological diversity was V> IV> III> II> I, among which V and IV were significantly higher than those of III, I and II (P <0.05) ). Non-metric multi-scale analysis shows that at the 68% similarity level, the similarities are not found except that the mosquito communities in the forestland and farmland are similar. The predominant species of mosquitoes transformed into construction land turned uni-directionally to Culex pipiens pallens, and mosquito density and diversity were significantly reduced. After urbanization, mosquito control and mosquito-borne disease control may be mainly based on the control of Culex pipiens pallens and their infectious diseases, and the importance of controlling Culex tritaeniorhynchus and its infectious diseases may be reduced.