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根据2003—2009年重庆市秀山县白背飞虱迁入前期的田间调查资料,应用地理信息系统(GIS)结合传统空间分布分析方法,研究了该县白背飞虱空间分布格局及其动态。结果表明:2003—2009年的白背飞虱种群在全县范围呈现明显的聚集分布格局;反向距离插值图显示,不同年度聚集中心和聚集程度是变化的。总的分布格局是,秀山县中部平坝地区的官桥、官庄、平凯镇发生较重,7年的调查数据中有4年的聚集中心位于此;而周边三沟两岔地区发生相对较轻,只有2007年聚集中心位于南部,2008年的聚集中心位于东部,2009年聚集中心位于北部和西部。
According to the field survey data of prehistoric whitebacked planthoppers in Xiushan County, Chongqing during 2003-2009, the spatial distribution pattern and its dynamics of Siberian planthopper (BPPH) were studied using GIS and traditional spatial distribution analysis. The results showed that the population of whitebacked planthoppers (SSPB) in 2003-2009 showed a pattern of aggregated distribution across the county. The inverted distance interpolation plots showed that the aggregation centers and the degree of aggregation varied in different years. The overall distribution pattern is that Guanqiao, Guanzhuang and Pingkai townships in Pingba area of central Xiushan County are heavier, with four years of aggregation centers in the seven-year survey data located here; and the occurrence of relative Light, only in 2007 the gathering center is located in the south, the gathering center in 2008 is located in the east, and in 2009 the gathering center is located in the north and the west.