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通过田间调查,用地统计学方法对灰飞虱Laodelphaxstriatellus(Fallén)及其重要天敌蜘蛛的时空动态进行了比较分析。通过变差函数模型的拟合及空间格局的分析,得出灰飞虱长翅成虫、若虫与蜘蛛的变程范围相近,结构性强度的范围相近,但同一时间灰飞虱与蜘蛛的变程和结构性强度则均不尽相同;灰飞虱若虫与蜘蛛自始至终为聚集分布,但灰飞虱长翅成虫与蜘蛛的分布型则有差异,在某些时间为均匀分布。用普通克立格方法作出空间分布图,在时间序列上进行比较分析,得出稻田蜘蛛与灰飞虱成若虫的空间分布均有相似性,尤其与若虫相似性更强,表现出比较明显的空间跟随现象,且空间跟随现象与灰飞虱虫量的消长有密切的关系,但是由于天气、稻田环境、灰飞虱其他天敌以及蜘蛛其他猎物的存在等因素的影响使得其空间跟随又有着相当的复杂性。
Through the field investigation, the spatio-temporal dynamics of Laodelphax striatellus (Fallén) and its important natural enemies Spider were analyzed by geostatistics. By fitting the variogram model and analyzing the spatial pattern, it was concluded that the range of the morphological changes of the larvae of Nymphalidae was similar to that of the nymphs, but the range of structural intensity was similar. However, at the same time, And structural intensity are different; Laodelphax striatellus nymphs and spiders are aggregated distribution from beginning to end, but there is a difference in the distribution pattern of the adults and spiders of Laodelphax striatellus, and at even times. Spatial distribution maps were made by ordinary Kriging methods, and comparative analysis on time series showed that the spatial distribution of adult nymphs in rice field spiders and Laodelphax striatellus were similar, especially similar to nymphs Followed by the phenomenon of space, followed by the phenomenon of spatial variation of the population of the planthopper, but due to the influence of the weather, the paddy field environment, other natural enemies of the planthopper and the existence of other prey of the spider, the spatial follow- Complexity.