Tiunov A V, Kuznetsova N A
Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, Moscow, Russia.
Izv Akad Nauk Ser Biol. 2000 Sep-Oct(5):607-16.
The effect of feeding and burrowing activities of anecic earthworms (Lumbricus terrestris) on abiotic characteristics of the soil, biomass and activity of soil microorganisms, and the spatial distribution of Collembola and Lumbricidae species was studied in a Iinden forest near Moscow. The results showed that organic carbon content, nitrogen content, pH, and microbial biomass and basal respiration are considerably higher around L. terrestris burrows than in the surrounding soil. The total density of springtails near the burrows was 1.6-1.7 as high as at the control sites. The most pronounced preference for earthworm burrows was observed in the species dominating in the soils of undisturbed deciduous forests (Isotomiella minor and Isotoma notabilis). The number and biomass of epigeic and endogeic earthworms also increased significantly in the zone of L. terrestris burrows. However, some springtail (Isotoma viridis, Protaphorura cf. nemorata, Lepidocyrtus lignorum) and earthworm species (Aporrectodea rosea) did not accumulate near L. terrestris burrows and even avoided them. Thus, L. terrestris activities create a mosaic of soil microhabitats, which provides for the coexistence of different microcommunities of soil organisms.
在莫斯科附近的一片椴树林中，研究了深栖蚯蚓（陆正蚓）的取食和挖掘活动对土壤非生物特性、土壤微生物生物量和活性以及弹尾目昆虫和蚯蚓物种空间分布的影响。结果表明，陆正蚓洞穴周围的有机碳含量、氮含量、pH值、微生物生物量和基础呼吸显著高于周围土壤。洞穴附近跳虫的总密度是对照地点的1.6 - 1.7倍。在未受干扰的落叶林土壤中占主导地位的物种（微小等节跳虫和显著等节跳虫）对蚯蚓洞穴表现出最明显的偏好。在陆正蚓洞穴区域，表栖蚯蚓和内栖蚯蚓的数量和生物量也显著增加。然而，一些跳虫物种（绿等节跳虫、近蚁原跳虫、木疣跳虫）和蚯蚓物种（粉红正蚓）并未在陆正蚓洞穴附近聚集，甚至避开它们。因此，陆正蚓的活动创造了土壤微生境的镶嵌体，为不同的土壤生物微群落共存提供了条件。
