2003 Volume 29 Issue 1 Pages 119-124
We evaluated recovery of forest floor vegetation in the Expo ’70 Commemorative Park constructed about 30 years ago, using pteridophyte as an index. Comparing to urban woods near the park,the number of pteridophyte species reaches high level. Species-area curves of forest floors and artificial environments such as stone walls,ditches,watercourses were drawn,and we found that there are many pteridophyte species in deciduous forest and in artificial environments,like small watercourse under canopy.There is no significant differences in diversity index between forest floors and artificial environments,but composition of species is different. In the park,there are no species which prefer ridge environment,and species which prefer valley floor condition appear little.Existence of varied environments would be good for pteridophyte species to take root,and that will improve diversity of forest floor vegetation.
