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目的 5.12汶川特大地震后,通过对病媒生物苍蝇种群、密度及季节消长情况的监测,为汶川开展病媒生物防治提供科学依据。方法采用诱蝇笼法,选择中心城区餐饮外环境2处,农贸集市1处,公园绿化带1处和居民区1处的垃圾回收点(桶)进行布放;2010-04/10,2011-03/11每月中旬监测1次。结果 2010年-2011年共开展苍蝇监测16次,布放诱蝇笼80个,捕获蝇类2 039只,以丝光绿蝇和巨尾阿丽蝇为优势种,分别占捕获蝇类的44.87%和30.46%,不同生境中以绿化带密度最高,为67.47只/笼,其次是农贸市场,为19.45只/笼,6月和9月为蝇密度高峰。结论 2010-2011年汶川县地震后苍蝇种群结构以丝光绿蝇和巨尾阿丽蝇为优势种,全年蝇密度出现6和9月2个高峰,各种环境类型中以绿化带密度最高,是重点应该采取防控的环境类型。
Objective After 5.12 Wenchuan Earthquake, through the monitoring of vector population flies population, density and seasonal growth and decline, to provide a scientific basis for the prevention and control of vectors in Wenchuan. Methods The flies fly cage method was adopted to select two locations outside the catering center of the downtown area, one at the farmers market, one at the park green belt and the garbage collection point (barrel) at the residential area. 2010-04 / 10, 2011 -03/11 mid-month monitoring once. Results From 2010 to 2011, flies were monitored 16 times, 80 catches of fly catches were placed and 2 039 flies were caught. The dominant flies were Lucilia serici and Tail flies, accounting for 44.87% And 30.46% respectively. The density of green belts in different habitats was the highest (67.47 / cage), followed by the farmers’ market (19.45 / cage) and the highest density of flies in June and September. Conclusion The population structure of flies in the Wenchuan County Earthquake in 2010-2011 was dominated by Litter green and Lilium orientalis. The population density of flies appeared in June and September at 2 peaks, and the highest density was found in all kinds of environment types. Is the focus should be taken to prevent and control the type of environment.