日本列島における木本植物種数分布と温度環境 : (II)生活型と種数分布

概要

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An extensive analysis was made of the diversity of woody species occurring along the temperature gradient (Warmth Index, W.I. ℃・Month) throughout the Japanese Archipelago. Two characters were examined : life form of leaves (deciduous or evergreen), and potential plant height (tree, medium-sized tree, shrub, dwarf shrub). Results of species diversity reflected those previously obtained from smaller sample sizes, showing a humped shape, peaking near the boundary between the cool and warm temperate forest zones. Species number distributions showed a continuation from the arctic through subtropical zones in terms of both investigated characters, irrespective of the marked altitudinal forest zonation evident in Japan. Thus although post-Tertiary forest zone differentiation is evident, the vegetation of the Japanese archipelago still shows a distinct overlap in terms of both leaf life form and potential plant height, especially at the snowdrift region of the Japan Sea side.
日本生態学会の論文
1990-08-30