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ID 29028
本文ファイル
別タイトル
Historical and ecological background of Abies firma forest in the Itsukushima Island <Articles>
著者
沖 宗一郎
NDC
植物学
抄録(英)
Abies firma has still been controversial whether it is a climax forest species in the warm temperate region or not. This is because that in the warm temperate, the species is merely seen except in the remnant forest patches such as in the shrine gardens. Towards this question, we surveyed its distribution in a part of Itsukushima Island, Hiroshima Prefecture. In our observation, the mature trees with reproductive size (35 cm < D) were found mostly in valley bottom, while they were much less abundant in the ridge tops of the study site. Contrary to this, saplings (D < 1 cm) were much less in the valley bottom while these tree size classes are quite abundant in the ridge tops. Light environment in the valley bottom was very low in comparison to the ridge top due to the dense canopy. However, even in the valley bottom, middle size (1 ≤ D ≤ 35 cm) trees are quite abundant in the vicinity area of check dam where the vegetation was once opened for its construction. These fi ndings imply ecological characteristics of A. fi rma as a secondary species, namely, unless any disturbance happen occasionally, it can not continuously regenerate in the study site.
掲載誌名
広島大学大学院総合科学研究科紀要. II, 環境科学研究
4巻
開始ページ
77
終了ページ
88
出版年月日
2009-12-31
出版者
広島大学大学院総合科学研究科
ISSN
1881-7696
NCID
SelfDOI
言語
日本語
NII資源タイプ
紀要論文
広大資料タイプ
学内刊行物(紀要等)
DCMIタイプ
text
フォーマット
application/pdf
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publisher
権利情報
Copyright (c) 2009 広島大学大学院総合科学研究科
部局名
総合科学研究科
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