木曽御嶽山高山帯における表面礫の移動と植生 : ミヤマタネツケバナ群落の成立要因について

概要

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To clarify the factors controlling the establishment of the alpine desert community, I investigated the periglacial stone movement and denudation of slope materials on the leeward slope where a Cardamine nipponica community is developed. As a result of the study, it was known that the rate of the periglacial downward movement and the amount of denudation on the studied slope averaged 14.8 cm and 0.9 cm per annum, respectively. It was deduced that the unstable conditions of the slope, such as denudation and deposition of slope materials, resulting from their periglacial movement continues to limit the invasion and establishment of general plants, and that the slope can support only specified plant species adapted to the alpine desert. Furthermore, the adaptation of the subterranean organ of plants to the slope instability was observed and divided into three types.
1983-12-30