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目的研究城镇地区蚊虫密度与地物景观的关系。方法在不同景观结构地区设立10个捕蚊点,统一选用吸入式诱蚊灯诱捕,同时采集捕蚊点地理坐标信息。以ALOS卫星影像为数据源对地物景观进行分类并计算各景观面积所占比例,分析蚊虫密度与其活动范围内景观因素的关系。结果共捕获蚊虫1578只,平均蚊密度19.73只/灯,致倦库蚊数量最多,占捕蚊总数的83.71%,其次是三带喙库蚊和白纹伊蚊。媒介蚊虫中三带喙库蚊与林地、开发用地的面积比例存在正相关,白纹伊蚊与开发用地的面积比例存在正相关。结论媒介蚊虫的分布有着景观倾向性,调节城镇微生态系统内的群落结构来控制媒介生物的种群数量将是降低蚊媒传染病发生的有效手段。
Objective To study the relationship between mosquito density and landscape in urban areas. Methods Ten mosquito breeding sites were set up in different landscape areas. Trap mosquitoes were trapped by inhalation, and the geographic coordinates of mosquito traps were collected. ALOS satellite imagery was used as the data source to classify the landscapes and calculate the proportion of each landscape area. The relationship between the mosquito density and the landscape factors within its scope of activities was analyzed. Results A total of 1578 mosquitoes were captured, with an average mosquito density of 19.73 / lamp, the largest number of Culex quinquefasciatus, accounting for 83.71% of the total number of mosquitoes, followed by Culex tritinea and Aedes albopictus. There was a positive correlation between the proportion of Culex tritaeniorhynchus in vector mosquitoes and the area of forestland and development land, and the positive rate of Ae. Albopictus to the area of development land. Conclusion The distribution of vector mosquitoes has the tendency of landscape. To control the community structure of urban micro-ecosystem to control the population of vector organisms will be an effective way to reduce the occurrence of mosquito-borne diseases.