关键词: 遥感, 稻田, 地理景观, 蚊虫分布

Abstract: Objective Study the relationship of geographical landscapes and mosquito distribution in rice growing districts.Methods The survey sites were established according to variance of geographical landscapes.The species and densities of adult mosquito were investigated with mosquito net,and the constitution of different geographical landscapes was extracted with romote sensing(RS) and geography information system(GIS),and then the relationship between geographical landscapes and mosquito distribution was analysised by SAS software.Results There were four species of Culex in 13 survey sites,accounting for 82.53% of all the captured mosquito species.The quantity of Culex pipiens pallens was the most among the captured mosquitoes,about 3950 mosquito.The results showed that the distribution of mosquitoes had the close relationship with geographical landscapes.There were significant positive correlations between the amount of Cx.modestus and the percent of residential area,the quantity of Anopheles sinensis and the percent of rice field area,the number of Cx.tritaeniorhynchus and the percent of rice field and forest areas,the amount of Cx.pipiens pallens and the percent of sewage,woodland and glebe areas.Conclusion The combination of RS and GIS can effectively monitor the variance of geographical landscapes factors in the paddy growing districts,which can be used to the control of mosquito-borne diseases.