Hikobia
Online ISSN : 2758-9994
Print ISSN : 0046-7413
Volume 18, Issue 1
Displaying 1-1 of 1 articles from this issue
  • H Tsubota, Yoshiki Koyama, Keisuke Matsuzaka, Seiji Mukai, Miho Nakaha ...
    2019Volume 18Issue 1 Pages 41-55
    Published: December 28, 2019
    Released on J-STAGE: October 10, 2023
    JOURNAL FREE ACCESS
    Fire causes significant damage to vegetation and would lead to major changes in the vegetation under frequent fire regime in the Seto Inland Sea area, Southwestern Japan. Although Miyajima Island, in the Seto Inland Sea Natural Park, is a vegetation reserve, forest fires sometimes occur. At the south-west area of the island, forest fire occurred in 1984 and 8 % of the area of the island damaged. A part of the fire-damaged area (ca. 2.6 ha) was planted in 1998 for revegetation using 1,814 pot-seedlings of 12 native tree species. We report here post-fire restoration of vegetation and the current status of the planted area. The vegetation of the fire-damaged area is in an early stage in ecological succession with low species diversity in 2019 (36 years after the fire); stratification of the tree canopy layers is not fully developed, and cover of the herb layer dominated by sun ferns is well developed. In the tree layer, multi-trunk trees of evergreen broadleaved species such as Camellia japonica L., Eurya japonica Thunb. var. japonica, Ilex pedunculosa Miq. and Neolitsea aciculata (Blume) Koidz. were observed. In the herb layer, dominant sun ferns Dicranopteris pedata (Houtt.) Nakaike and Diplopterygium glaucum (Houtt.) Nakai (Gleicheniaceae), were observed. A low number of individuals of planted trees in 1998 of two species, Morella rubra Lour. (Myricaceae) and Quercus phillyreoides A.Gray (Fagaceae), were re-observed in the some planted area in 2019 (21 years after the greening). The overwhelming cover of dominant sun ferns can be considered a primary cause of the reduced vegetation and low establishment of planted trees.
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