降雨量对雨水井蚊虫孳生的影响研究

doi:10.11853/j.issn.1003.8280.2022.04.014

摘要/Abstract

摘要： 目的探索降雨量导致雨水井中的积水变化及其对白纹伊蚊孳生水平的影响，为登革热防控提供依据。方法 2019年7月26日－8月25日选择上海市松江区某小区内的105处雨水井，分别在实验开始的第1、3、6、9、12、15、20、30天共计调查8次雨水井内积水情况及其幼蚊孳生情况。采用ArcGIS 10.8软件进行空间分析，采用Stata 14.0软件对数据进行负二项回归分析。结果针对该居民小区105处雨水井开展的8次调查中，积水次数8次的雨水井共有22处，积水次数1～7次的雨水井共有77处，积水次数0次的有6处。对99处有积水的雨水井使用幼蚊勺捕法进行孳生地调查，白纹伊蚊孳生阳性（1次及以上伊蚊孳生）的雨水井共有69处，未发现白纹伊蚊孳生的雨水井共有36处。负二项回归分析发现，蚊虫孳生与雨水井中积水的浑浊度（Z=-4.423，P<0.001）、8次调查当天的前第1～7天合计降雨量情况（Z=-7.874，P<0.001）及第8～14天的合计降雨量情况（Z=6.166，P<0.001）差异均有统计学意义；蚊虫孳生与雨水井的积水次数差异无统计学意义（Z=1.342，P=0.179）。结论上海地区雨水井普遍存在积水，雨水井中蚊虫孳生与积水的浑浊度、调查当天的前第1～7天的合计降雨量情况及第8～14天的合计降雨量情况相关，应针对性地开展雨水井幼蚊密度调查及控制，降低登革热传播风险。

关键词: 登革热, 白纹伊蚊, 雨水井, 降雨量, 负二项回归

Abstract: Objective To investigate the effect of rainfall on the accumulation of water in rainwater wells and the breeding of Aedes albopictus, and to provide a basis for dengue fever prevention and control. Methods From July 26 to August 25, 2019, 105 rainwater wells in a residential community of Songjiang district, Shanghai, China were selected to investigate the water accumulation and mosquito breeding on days 1, 3, 6, 9, 12, 15, 20, and 30. ArcGIS 10.8 was used for spatial analysis and Stata 14.0 was used for negative binomial regression analysis. Results Of the 105 rainwater wells, 22 were flooded 8 times, 77 were flooded 1-7 times, and 6 were not flooded. Of the 99 flooded wells investigated using the juvenile mosquito spoon trap method, 69 were positive for Ae. albopictus breeding (one or more records of Aedes breeding), and 36 were negative for Ae. albopictus breeding. Negative binomial regression analysis showed that mosquito breeding was statistically associated with turbidity of water in rainwater wells (Z=-4.423, P<0.001) and total rainfall during the first seven days (Z=-7.874, P<0.001) and from day 8 to day 14 (Z=6.166, P<0.001) before the survey day of the eight surveys. There was no statistical correlation between mosquito breeding and the number of water logging (Z=1.342, P=0.179). Conclusion The rainwater wells were generally flooded in Shanghai, and mosquito breeding in rainwater wells was related to turbidity of water, total rainfall from day 1 to day 7 prior to the survey, and total rainfall from day 8 to day 14 prior to the survey. Investigation and control of juvenile mosquito density in rainwater wells should be carried out to reduce the risk of dengue fever transmission.

Key words: Dengue fever, Aedes albopictus, Rainwater well, Rainfall, Negative binomial regression

中图分类号:

R384.1

陶骏捷, 吕锡宏, 张驰, 姚隽一, 刘曜, 周毅彬. 降雨量对雨水井蚊虫孳生的影响研究[J]. 中国媒介生物学及控制杂志, 2022, 33(4): 516-520.

TAO Jun-jie, LYU Xi-hong, ZHANG Chi, YAO Juan-yi, LIU-Yao, ZHOU Yi-bin. A study on the effect of rainfall on mosquito breeding in rainwater wells[J]. Chinese Journal of Vector Biology and Control, 2022, 33(4): 516-520.

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