동해안 해안시구의 식생특성 = Vegetation Characteristics of Coastal Sand Dune in the East Coast

다국어 초록 (Multilingual Abstract)

The phytosocialogical study on the coastal sand dune vegetation of the East Coast was carried out. 180 phytosociological releves of 62 sites in the East Coast were used in this study, In addition, already published syntaxa and the phytosociological hierarchy in Korea and Japan were used and comparative analyses of syntaxonomy, synecology, syngeography, and syndynamics were performed in the study. In this study, the flora was investigated 30 families, 66 genera, 77taxa and 3 vegetation types were identified: the coastal drift-line annual communities (Calystegio soldanellae-Salsoletum komarovii), the dune glasslands communities (Elymo-Caricetum kobomugi, Cares kobotnugi typical community, EIvnus mollis community, (``alysregia soldanella community, Zovsia ,nacrostachya community, Cvnodon dactvlon community, Cares pumila community), and the dune shnihs communities (Linario Viticetrum rotundifoliae, Viler rotundfo1ia community, Rosa rugosa community). The aspect of transition in the coastal sand dune vegetation of the East Coast were identified as follows : (I) reduced constancy degree and cover degree of Glehnia lirroralis in each community; (2) lack of Jschaernu,n anthephoroides in Linarlo-Viticeruni rotundifoliae (3) simplified species composition in Virex rotundfo1ia community. Unstable habitat condition by external interference seemed to has caused the reduction of 2 taxa, Glehnia linoralis and ischaemuin anthephoroides, that usually grow in the second dune. In addition, we found changes in the distribution of the dune shrub communities influenced by rising temperature of the East Coast as results of the global warming. The results on the distribution of the dune shrub communities in this study demonstrated that the limit of the Rosa rugosa community made 0`` 44 ``N to the North and the vegetative limit of the Vitex rotund jfolia community made 00 28 ``N to the North, respectively compared with (he previously phytosociological studies. This study investigated the coastal sand dune vegetation, syntaxonomy, habitat condition and human disturbunce of the East Coast, and this will provide important information as basic data for the coastal ecosystem.