Flood disturbance and the establishment of a Celtis sinensis var. japonica and Aphananthe aspera forest along the Sendai River within Tottori City

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  • MATSUOKA Atsushi
    Hiruzen Experimental Forest, Faculty of Agriculture, Tottori University
  • SANO Junji
    Forest Ecology and Ecosystem Management Laboratory, University Forests, Faculty of Agriculture, Tottori University

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Other Title
  • 鳥取市域における千代川の氾濫とエノキ・ムクノキ林の成立
  • トットリ シイキ ニ オケル チヨガワ ノ ハンラン ト エノキ ムクノキリン ノ セイリツ

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Abstract

We investigated the establishment condition of the riparian forest dominated by Celtis sinensis var. japonica and Aphananthe aspera, which are deciduous broad-leaved species widely distributed around rivers in the warm-temperate regions of Japan. The establishment of C. sinensis var. japonica and A. aspera was related to the frequency of flood disturbances. The riparian forest dominated by these species grew on the floodplain, where the average frequency of flood disturbance was 1.3 days per year for 16 years. The development of the riparian forest was prevented on the lower part of the plain, which had more frequent flood disturbances (13.8 days per year). On the alluvial plain outside the riverbank with less frequent flood disturbances, isolated tree remnants consisted of several climax evergreen species of the region, including Machilis thunbergii and Castanopsis cuspidata var. sieboldii, in addition to C. sinensis var. japonica and A. aspera. Thus, the riparian forests dominated by C. sinensis var. japonica and A. aspera must be maintained by the intermediate frequency of flood disturbances.

Journal

  • Vegetation Science

    Vegetation Science 20 (2), 119-128, 2004

    The Society of Vegetation Science

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