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目的 通过对嗜人按蚊分布区的自然地理因素和社会经济因素进行调查 ,描述广东省嗜人按蚊分布与自然地理和社会经济的关系。方法 选择若干个存在嗜人按蚊的自然村 ,调查每个村的自然环境、地形地貌、水体状况、土壤特征、气象因子、耕作制度和社会经济环境等 6 8项因素 ;各指标量化后输入计算机 ,用SPSS8.0 /forwindows统计软件包进行制表和数据分析。结果 广东省嗜人按蚊分布于珠江三角洲地区 ,11个存在嗜人按蚊的市 (县 ) ,自北纬 2 5°以南 ,东经 113°到东经 115°之间 ,沟溪 (渠 )是当前我省嗜人按蚊区最重要的水体类型 ;水体的水质清澈 (95 % ) ,遮阴良好 (95 % )。每亩耕地的农药使用量为 2 .3kg ,甘蔗和香蕉少用或不用农药。结论 嗜人按蚊在广东呈点、片状分布 ,以低山丘陵区为主 ,并喜分布于酸性土质 ;其主要孳生地是遮阴良好的沟溪、甘蔗地和香蕉地 ;嗜人按蚊区的气候以温暖湿润、阳光充沛为特点 ;流行区居民人均收入低 ,经济状况不佳 ,主要耕种甘蔗、香蕉、双季稻等农作物 ;水稻田农药使用量较甘蔗、香蕉、双季稻等经济作物为大 ,后者受杀虫剂影响较小 ,嗜人按蚊种群密度较高。
Objective To investigate the relationship between the distribution of Anopheles anthropophagus and natural geography and socio-economy in Guangdong Province through the investigation of natural geographical factors and socio-economic factors in the distribution of Anopheles anthropophagus. Methods A number of natural villages with anopheles anthropophagus were selected to investigate 68 factors such as the natural environment, topography, water status, soil characteristics, meteorological factors, farming system and socio-economic environment in each village. The indicators were quantified and input into a computer , With SPSS8.0 / forwindows statistical package tabulation and data analysis. Results Anopheles anthropophagus in Guangdong Province was found in the Pearl River Delta region. Eleven of them were found in the city (counties) with anopheles anthropophagus. They were from south latitude 25 ° south, longitude 113 ° east to longitude 115 ° east. At present, the most important water body type in the anopheles area of our province is the water quality is clear (95%) and the shading is good (95%). The amount of pesticide used per acre of cultivated land is 2.3kg, with or without pesticides for sugarcane and banana. Conclusion The Anopheles anthropophagus was spotted in Guangdong and distributed in the form of flake. It was dominated by hilly areas and was distributed in acidic soil. The main habitat of the anopheles anthropophagus was ditch, sugarcane and banana land. The climate in the mosquito zone is characterized by warm, humid and abundant sunshine. The per capita income of residents in the epidemic area is low, and the economic conditions are poor. The main crops are crops such as sugar cane, banana and double cropping rice. The use of pesticides in paddy fields is higher than that of sugarcane, banana, Economic crops such as large, the latter less affected by insecticides, anopheles populations higher density.