摘要:
本文根据1988年在福建古田银耳栽培房系统调查资料,采用频次分布检验和聚集度指标分析,镰孢穗螨的空间分布型为聚集型。种群密度的水平分布和垂直分布指出,不同层次的螨量无显著差异,而同一层次不同架上螨量存在显著差异。镰孢穗螨在银耳袋内和袋表面种群消长曲线,都属于后峰型;两者进行发生量相关分析,相关极其显著。种群扩散与迁移结果显示,扩散率均值为1.094cm/hr,镰孢穗螨在释放后24小时,迁移趋于停止,72小时后种群进一步向外围空间扩散。
Abstract:
Based on the data of the systematic investigation taken from the cultural houses of the Jelly fungus (Tremella fusciformis) in Gutian county, Fujian province, in 1988. The population dynamics and the population distribution patterns of Stferoptes fusarii were tested. The results showed that the numbers of the mite did not differ gratly among the different layers of the same shelf and differ remarkably among the same layers of the different shelf. The dynamica cunves of the population all belonged to postpeak type. The spatial distribution patterns of Siteroptes fusarii were all aggregation ones. The dispersal rate tested was 3.54 cm/hr 6 hours late after releasing. The migration hardly stoped 24 hours late after the mite releasing.
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