城市化对涪陵三峡库区城市鸟类群落结构的影响  

Effects of Urbanization on Avian Community of Urban Birds in the Three Gorges Reservoir Area of Fuling

作　　者：曹长雷[1] 韩宗先[1] 李宏群[1] 吴少斌[1] 冉景胜[1] 

机构地区：[1]长江师范学院乌江流域生物资源研究所,重庆408100

出　　处：《安徽农业科学》2010年第3期1275-1278,共4页Journal of Anhui Agricultural Sciences

基　　金：重庆市教委科研项目(KJ091304);长江师范学院校级科研项目(08JKY27)

摘　　要：2009年7～8月采用样线法对三峡库区涪陵段主要城镇的鸟类群落进行了调查，探讨了三峡库区城市化对城市鸟类群落结构的影响。结果表明，涪陵三峡库区夏季城市鸟类共有7目23科33种，物种多样性指数为2．4989，均匀度指数为0．7147，优势度指数为0．1171；沿着一般城镇、中心城镇、中心城市的城市化梯度，城市化综合指数逐渐升高；不同城市化栖息地鸟类群落差别较大，物种数和物种多样性在中心城镇最高，均匀性沿着城市化梯度逐渐降低，而优势度正好相反；影响城市鸟类群落的主要城市栖息地因子为叶高多样性、树种数、人为干扰。The survey on urban bird community in main towns in the Three Gorges Reservoir Area （Fuling section） was conducted with the method of line transect census during July to August 2009. Effects of urbanization on avian community in the Three Gorges Reservoir Area were discussed. The results showed that 33 species were recorded, belonging to 23 families and 7 orders. Diversity, evenness index and dominant extent of urban birds community were counted for 2. 498 9, 0. 714 7and 0.117 1. Along city grads of common town, center town, center city, urbanization synthetical index was gradually elevatory. Obvious discrimination existed in avian community in different city habitats, as species and community diversity reached tiptop in center town, and evenness index became lower along city grads in opposition to dominant extent. The main urban habitat factors effecting on avian community were foliage height diversity, number of tree species and human disturbance.

关 键 词：三峡库区 城市化 群落结构 人为干扰 

分 类 号：S718.63[农业科学—林学]