重庆市秀山县褐飞虱空间格局分析

Spatial Distribution of Brown Planthopper(Nilaparvata lugens) in Xiushan,Chongqing of China

根据重庆市秀山县褐飞虱Nilaparvata lugens(Stl)发生高峰期的田间调查资料,应用地理信息系统(GIS)结合传统空间分布分析方法,研究了褐飞虱于2007-2013年不同年份在全县范围的空间分布格局.结果表明:2007-2013年的褐飞虱种群在全县范围呈现明显的聚集分布;反向距离插值图显示,不同年份褐飞虱发生的聚集中心和聚集程度不断变化;秀山县中西部的溶溪、塘坳、官庄、中和等乡镇发生较重,南部的兰桥、梅江等地发生相对较轻.褐飞虱这种空间分布格局和动态变化是多种生态因素综合影响的结果,本研究为该地区褐飞虱的综合管理提供了一定的理论依据.

Based om Geographical Information System（GIS） and traditional analysis methods,the spatial distribution and dynamics of Nilaparvata lugens Stl） at occurrence peak stage were analyzed according to the data collected in Xiushan,Chongqing from 2007 to 2013.The results showed that the spatial distribution patterns of Nilaparvata lugens were mainly aggregated in all researched years and inverse distance weighted interpolation figures indicated the centers of aggregation and distribution patterns were different in different years.In general,the occurence was serious from central central to west area of the county including Rongxi,Tangao Guanzhuang,Zhonghe towns while not serious in the south of the county.The study provided some theoretical basis for comprehensive management of Nilaparvata lugens in this region.