Seed dispersal and vegetation development on a debris avalanche on the Ontake volcano, Central Japan

T. Nakashizuka, S. Iida, W. Suzuki, T. Tanimoto

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    45 Citations (Scopus)

    Abstract

    Seed dispersal and early revegetation processes were studied in an area devastated by a debris avalanche that occurred on volcano Ontake, Central Japan in 1984. The avalanche was initiated by a volcanic earthquake, and a 3.4 x 107 m3 land mass destroyed the vegetation over 700 ha. The revegetation of the first five years was slow in the area of higher elevation (subalpine area). Both the speed of revegetation and the species richness of trapped seeds varied with the elevation. The post‐disturbance vegetation on the deposit with surface soil or plant fragments was richer in species than that without any surface soil. Almost all of the seeds caught by sticky traps and most of the species with frequent occurrence in the vegetation after disturbance were wind dispersed. Wind dispersal was especially important on the deposit without surface soil or plant fragments. 1993 IAVS ‐ the International Association of Vegetation Science

    Original languageEnglish
    Pages (from-to)537-542
    Number of pages6
    JournalJournal of Vegetation Science
    Volume4
    Issue number4
    DOIs
    Publication statusPublished - 1993 Aug

    Keywords

    • Disturbance
    • Revegetation
    • Seed trap
    • Succession
    • Wind dispersal

    ASJC Scopus subject areas

    • Ecology
    • Plant Science

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