Evaluation of natural restoration after reclamation in urban area, using pteridophyte as an index

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  • MATSUI Rie
    Grad. Sch. of Global Environmental Studies, Kyoto Univ.
  • MURAKAMI Kentaro
    Natural History Museum, Kishiwada City Grad. Sch. of Agri. and Biol.Sci., Osaka Pref. Univ.
  • MORIMOTO Yukihiro
    Grad. Sch. of Global Environmental Studies, Kyoto Univ.

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Other Title
  • 都市近郊における大規模造成樹林地の自然回復度評価―シダ植物を指標として―
  • トシ キンコウ ニ オケル ダイキボ ゾウセイ ジュリンチ ノ シゼン カイフクド ヒョウカ シダ ショクブツ オ シヒョウ ト シテ

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Abstract

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.

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