Ecological Characteristics & Flora of Native Smilacina bicolorHabitats at Mt. Deogyu

다국어 초록 (Multilingual Abstract)

Smilacina bicolor Nakai is rare and endangered plant designated by Ministry of Environment in Korea(2006) and Korea forest service(2006). Its native habitats at Mt. Deogyou was researched and analyzed about ecological characteristics, distribution and flora etc. Native Smilacina bicolor habitats were classified with two communities through phytosocialogical table work and stand ordination of SYNTAX2000 with PCoA; Smilacina bicolor-Tripterygium regelii community and Smilacina bicolor-Ainsliaea acerifolia community. In case of Smilacina bicolor-Tripterygium regelii community, In east east north or east faced native site, proper light and enough humid conditioned place and altitude 1,580m above, Tripterygium regelii, Taxus cuspidata etc were appeared. Taxus cuspidata is character species. However, In case of Smilacina bicolor-Ainsliaea acerifolia community, in north north east, west or west west north faced sites, relatively less light condition places and altitude about 1,400m, Ainsliaea acerifolia, Disporum smilacinum, Rhododendron schlippenbachii etc were appeared. The flora of vascular plants is composed with 37 family, 67 genus, 66 species, 11 varietas, 1 forma and total 78 taxa. Compositae corresponds to 11.54%, Liliaceae corresponds to 10.25% of totally 103 taxa and family that 1 species appeared corresponds 29.45%. The flora of vascular plants in the studied area was composed of pteridophyte 5.13%, gymnosperm 2.56%, monocotyledon 17.95%, dicotyledoneae 74.36% The component ratios of pteridophyte & monocotyledon are low, on the other hand gymnosperm and dicotyledoneae is high, compared with the component ratio of Korean vascular plants(pteridophyte : gymnosperm : monocotyledon : dicotyledoneae=7.1 : 1.5 : 23.2 : 68.2). There were no naturalized plants in this study in comparison with the information about naturalized plants from National Institute of Environmental Research.