Abstract:Soil fauna played an important role in the process of the degraded ecosystem rehabilitation and rebuild. To understand the variation characteristics of soil fauna community in reclaimed land that have been occupied by copper-mine-tailings, belt transect method and pitfall trapping test at Linchong reclaimed abandoned land of copper-mine-tailings (RALC) and suburbs forest and shrub land (SFSL) were used to investigated soil fauna communities in the city of Tongling, Anhui Province. A total of 3 154 individuals of soil fauna were collected which belonged to 27 genera, 5 phyla, 10 classes using belt transect method. Nematodes, Collembola and Acarina were the dominant groups, Harpacticoida and Coleoptera larvae were the frequent groups. A total of 2 160 individuals of soil fauna were collected which belonged to 12 genera mainly including the Collembola, Hymenoptera, Diplura, Araneae, Diplopoda and Oligochaeta using pitfall trapping test. The density and richness of soil fauna have the trend of constantly increasing from treatments of central RALC to that of SFSL. At treatments of RALC there was a low DG diversity index and a high Shannon-Wiener diversity index in comparison with that of SFSL. The greater the distance from treatments of RALC to that of SFSL, the smaller was the jaccard similarity coefficient (q) of treatments of RALC with that of SFSL and the more obvious was the surface aggregation of soil fauna in soil profile at treatments of RALC. The abundance and richness of ground-dwelling soil fauna immigrated from SFSL to RALC were constantly reducing by the increase of spacing distance, and were constantly increasing by the extending of investigation time, and were changing by the types of suburbs forest and shrub. The above results indicated that there were a very significant spatiotemporal differences and gradual changes of soil fauna community between RALC and SFSL which provided evidence for the immigration and colonization of soil fauna from SFSL to RALC.