成蚊密度与蚊幼孳生状况的相关性研究

目的探索某特定区域内成蚊密度与蚊幼孳生状况之间的关系,并分析其影响因素。方法 2012年4-11月份在上海中心城区人民广场与人民公园区域设置了5个成蚊监测点和50个蚊幼孳生地调查点,开展了持续时间超过220 d的连续性成蚊监测和每周一次的蚊幼调查。结果人民广场成蚊密度和蚊幼孳生阳性率均显著高于人民公园(t=-4.682,P<0.01;χ2=64.154,P<0.01);spearman相关性分析,人民广场成蚊密度与蚊幼孳生阳性率具有统计学相关性(r=0.762,P=0.028),人民公园未见显著性相关(r=-0.262,P=0.531)。结论在一特定区域内,成蚊密度受该区域内蚊幼孳生状况的影响,此外还受气象和人为因素等影响。

Correlation analysis between adult mosquito density and larvae breeding conditions

Objective To explore the relationship between the adult mosquito density and mosquito larvae breeding conditions in one particular area,and then analyze the influencing factors.Methods 5 mosquito monitoring sites and 50 breeding sites were respectively set to conduct adult mosquito surveillance and breeding-sites investigation in Shanghai People＇s square and People＇s park from April to November in the year of 2012.Results The adult mosquito density and the mosquito breeding-sites positive rate in People＇s Square were significantly higher than in People＇s Park（t =-4.682,P 0.01; χ2= 64.154,P 0.01）.There was a statistically significant correlation between the adult mosquito density and mosquito breeding-sites positive rate in People＇s Square（r = 0.762,P = 0.028）,and little correlation in People＇s Park（r =-0.262,P = 0.531）.Conclusion Mosquito breeding condition is one important factor affecting the adult mosquito density.Other factors as weather conditions and human behaviors also affect adult mosquito density in one particular area.