蚊虫群落与环境因素关系的地理信息系统分析

Analysis on relationship between mosquitoes community and environment factors

目的研究云南省南部地区的新移民村建设对蚊虫群落动态的影响。方法应用地理信息系统(GIS)分析云南省南部地区2个自然村中蚊虫群落与相关环境因子的关系。结果水稻田面积对于样点蚊虫群落最具有影响力,水稻田面积与蚊虫群落的种类数量、个体数、多样性、优势度均有统计学上的相关关系;居民点距离水稻田的距离也与居民点中蚊虫群落的均匀度呈正相关,而居民点距离河流距离与居民点中蚊虫群落的种类数量则呈负相关。结论在云南省南部地区进行的新村镇建设过程中,相关开发措施带来的环境因素的改变,会引起原来环境中的蚊虫群落的相应变化。

Objective To study the affection of the migration village building on local mosquito community in southern part of Yunnan province.Methods Two village were taken as the research objects,and GIS was adopted to study the relationship between the mosquitoes community environment factors in two villages of southern part of Yunnan province.Results Rice field was the most affection factors on mosquitoes community.Among those environment factors,the mosquitoes species number,number of the mosquitoes community,the diversity index,and the dominant index were all related to the rice filed area around the sample sites.The distance of the sample sites to the rice field was positive related to the evenness index of the mosquitoes community and the distance of the sample sites to the river was negative relative to the species number of the mosquito community in sample sites.Conclusion In the process of new migration villages building,the alteration of the environment which was derived from village building would lead to fluctuating of the local mosquito＇s community.