<報文>表土の移動保存と土壌小形節足動物相の変化 : I. 小量土壌のコンクリート床上への設置

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To examine progressive change in microarthropod fauna in removed soil, sixteen surface soil samples （10×10×5cm depth）taken from a mixed forest of Cryptomerla japonica and Chamaecyparis obtusa in Febrary, 1981, were packed each in a gauze bag and set on a concrete floor 10m above the ground. Four each samples were put in Tullgren funnels just after the sampling, 1 month after, 3 months after and 6 months after the setting on the foor. The total number of microarthropods once increased after 3 months and then decreased to about half of the initial number after 6 months. Only Symphypleona of Collembola and Formicidae increased and got the highest number after 6 months. Of the 40 initial species of oribatids 3 species disappeared after 1 month, 8 species did after 3 months and 31 species did after 6 months. Sixteen species of oribatids were newly added after 1～6 months, including some species usually inhabiting grassland soil or house dust.
横浜国立大学の論文