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褐飞虱是我国主要的水稻害虫 ,有着复杂的空间结构 .地统计学可用来分析空间相关变量的结构和插值模拟空间相关变量的分布 .运用地统计学中的变差函数和克立格插值法对广东省褐飞虱种群 3个主要世代在早稻田间的空间结构进行分析和模拟的结果表明 ,大尺度的褐飞虱田间种群的空间分布为聚集型 ,不同世代褐飞虱种群的局部空间结构有差异 ,聚集的范围分别为 40 0、2 0 0和 2 0 5km ;空间分布模拟地图能反映褐飞虱种群在田间的具体分布情况 ,广东西部地区每一世代褐飞虱的发生密度均高于东部地区 .
Nilaparvata lugens (Nilaparvata lugens) is a major rice pest in our country with complex spatial structure. Geostatistics can be used to analyze the structure of spatial correlation variables and the distribution of spatial correlation variables in interpolation simulation. Using the variogram and Kriging interpolation in geostatistics The spatial structure of three main generations of BPH population in the early rice paddy in Guangdong Province was analyzed and simulated. The results showed that the spatial distribution of large-scale BPH population was aggregated, and the population structure of BPH population differed in different generations. The range of aggregation was 40 0,2 0 0 and 2 0 5km. The spatial distribution simulated map can reflect the specific distribution of BPH population in the field. The density of BPH in each generation in western Guangdong was higher than that in the eastern area.