Changes in collembolan community structure during leaf litter decomposition were investigated with litter bag method from May 1993 to April 1995 in Cyclobalanopsis glauca forest. Successional changes in the community structure were expressed by the diversity index, succession index and similarity index. The community organization was compared among different stages of the decomposition of leaves. The pattern of mass loss of leaf litter was represented by three phases: leaching phase (0～7 months), immobi...