【摘要】 <正> 甲螨(Oribatid mite)是土壤动物中主要类群之一。它们分布广、数量大(占土壤螨类的50%)、种类多,对土壤的形成、熟化及土壤物质能量的变动转化起着重要作用。甲螨还通过自身的运动、摄食和代谢,改变土壤的理化性状,提高土壤的肥力,有利于农林业生产。甲螨中有的种类是动物寄生蠕虫的中间宿主;有的种类可危害农作物;还有些种类是畜牧更多还原

【Abstract】 (1) The vertical distribution of Oribatid mite in soil fauna on the foot of the Purple Mountain in Nanjing is aggregated to surface layer of soil. (2) The vertical distribution of this species varies seasonally, with strong surface aggregation in Jun.—May and relatively weak aggregation in June—Dec. (3)Its average density of distribution is higher in Dec.—Feb.,and lower in June-Aug. Relationships between temperature, humidity and food source and the density of Oribated mite have been found.更多还原