The Respond of Soil Animal Communities on the Edge Effect of Phoebe zhennan Plantations

In order to study the respond of soil animal communit on the edge effect of Phoebe zhenna plantations of the western borders of the Sichuan Basin mountain, choosing the 58-year-old Phoebe zhenna plantation as objects, Macro-fauna samples were picked up by hand and using Tullgren-Baermann separation methods to investigate the soil animal communities in wooldland margins of Phoebe zhenna plantation woodland.The results showed that a total of 887 individuals of soil fauna, belonging to 3 phylums, 9 classes, 12 orders, 23 families. The survey results displayed that the number order of soil fauna in herb was the edge (5.37×10⁴)>the center (2.69×10⁴), The density order of total species was the edge (21)>the center (17). Soil animal community was obviously surface-accumulated.The density-group index (DG) was significantly higher on the edge than in the center. There were extremely significant differences about the diversity index (D) (P<0.01).The various diversity index (H'), the dominance index (C), evenness (J) were no significant differences (P>0.05). In conclusion, the edge effect led to the synergism of soil animal density, number of species and diversity were significantly higher than those in the center the forest land.