The aim of this study was to determine the appropriate stockpiling methods for revegetation by comparing the germination status of seed banks before and after preservation for 2 years. Soil temperature in stockpiled topsoil was higher in open treatment and at 1.5 m, whereas soil water content was maintained at lower levels (14.06-19.08%), than those in the control group. The seed banks in stockpiled topsoil had 48 species and 1,559 individuals, among which perennials showed the highest number in terms of life forms, whereas Compositae and Gramineae were dominant in terms of families. Based on seed bank type, persistent seed banks had the highest number of species, while transient seed banks had the highest number of individuals. By stockpiling period, the number of species in the seed bank started to increase after 24 months, while the number of individuals began increasing after 12 months and exceeded that of the control group after 24 months. Regarding the treatment of stockpiling methods, the number of species and individuals in open treatment were closer to those of the control group. When analyzed by height, the number of species and individuals were higher at 0 m, but still lower than those of the control group. A multivariate analysis of variance (MANOVA ) showed that the optimal combination was obtained in open treatment and the number of individuals increased with the lengthening of the stockpiling period.

Abstract
 1. Introduction
 2. Materials and Methods
  2.1. Site
  2.2. Methods
  2.3. Analysis
 3. Results and Discussion
  3.1. Temperature and water content level of thestockpiled topsoil
  3.2. Germination status of seed banks instockpiling topsoil
  3.3. Germination status of seed banks by thestockpiling period
  3.4. Germination status of seed banks bystockpiling method
  3.5. MANOVA
  3.6. Proper stockpiling methods for topsoil as arevegetation material
 4. Conclusion
 REFERENCES

• Myung-Hoon Yi(Department of Education and Research, Daegu Arboretum) Corresponding author