<報文>中部山岳以西の亜高山性植生および高山性植生の植物社会学的研究 : その2.植生単位の分布特性

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Contributions from the Department of Vegetation Science, Institute of Environmental Science & Technology, Yokohama Natlonal University No.197The Vaccinio-Piceetea, Betulo-Ranunculetea and Oxycocco-Sphagnetea plant communities are characteristic of the subalpine zone and the boreal zone. The Caricirupestris-Kobresietea bellardii, Cetrario-Leuseleurietea and Phyllodoco-Harrimanelletea plant communities are characteristic of the alpine zone and the arctic zone. Some alpine vegetation occurs in the subalpine zone due to edaphic and microclimatic factors. The subalpine vegetation almost reaches the top of the mountains in Chubu about 3,000 M above sea level. There is no clearly alpine zone in this area. The small alpine area, which is meadow or desert, we find above a subalpine area composed of dwarf Pinus pumila mosaic. Three different areas are recognized by plant community distribution in the research area; (ⅰ) Chubu-mountain-pacific-area, (ⅱ) Chubu-mountain-Japan Sea-area and (ⅲ) Shikoku-Kii-area. In the light of plant geographical literature global distribution areas of the recognized species in the Northern hemisphere are discussed from the systematical and synchorological points of view. The subalpine flora is characterized by Japanese endemic species and Asian species often with endemic varieties. The alpine flora it is characterized by species of the circumpolar region, endemic varieties are also frequent here.
横浜国立大学の論文