日本森林植生の最上級単位と領域
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概要
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Three class groups, Vaccinio-Piceetea, Acero-Fagetea, and Lauraceo-Fagaceetea sempervirens are the major zonal forest communities of Japan. Moreover one must add two outsider orders, Tsugetalia sieboldii and Pinetalia densiflorae. Orders are suitable elements for mapping in a smaller scale. The alpine pine scrub, Vaccinio-Pinetalia is shown in pale rhodonite pink and the subalpine coniferous forest, Betuletalia ermani in lavender violet. The montane beech forest, Saso-Fagetalia is coloured in vandyke brown, while the edaphic community, Fraxino-Ulmetalia in light rosolane purple. But when one goes gradually southward, or descends downward, reconstruction becomes more and more difficult and the result proves to be artificial, so that the occurrences of the natural forest of the Shiion sieboldi and the suballiance of Quercion phillyraeoidetis, should be marked motmot green and snuff brown dots, and the areas of the Oryzetea sativae are drawn in Mathew's blue, and those covered by the Miscanthetea sinensis in dull green yellow. The submontane forest of Tsugetalia sieboldii in Persian blue and the lowland and coline coniferous forest of the Pinetalia densiflorae in pinard yellow. On the summits of mountains in Kyusyu and Sikoku, grassland with dwarf shrub growth, Rhododendron kiusiani are represented in small Tyrian rose dots. Besides the secondary forests of deciduous oak and chestnut develop in very wide range and the areas are coloured in ochraceous buff.
- 1966-12-30