Item type |
紀要論文(ELS) / Departmental Bulletin Paper(1) |
公開日 |
2004-02-01 |
タイトル |
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タイトル |
Vegetation development on the glacier moraines in Oobloyah Valley, Ellesmere Island high arctic Canada |
言語 |
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言語 |
eng |
キーワード |
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言語 |
en |
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主題Scheme |
Other |
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主題 |
Cassiope tetragona |
キーワード |
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言語 |
en |
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主題Scheme |
Other |
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主題 |
Dryas integrifolia |
キーワード |
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言語 |
en |
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主題Scheme |
Other |
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主題 |
Ellesmere Island |
キーワード |
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言語 |
en |
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主題Scheme |
Other |
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主題 |
glacier moraine |
キーワード |
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言語 |
en |
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主題Scheme |
Other |
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主題 |
vegetation development |
資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
departmental bulletin paper |
ID登録 |
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ID登録 |
10.15094/00006212 |
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ID登録タイプ |
JaLC |
ページ属性 |
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内容記述タイプ |
Other |
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内容記述 |
P(論文) |
著者名(英) |
Okitsu, Susumu
Sawaguchi, Shin-ichi
Hasegawa, Hirohiko
Kanda, Hiroshi
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著者所属(英) |
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en |
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Faculty of Horticulture, Chiba University |
著者所属(英) |
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en |
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Niigata University of International and Information Studies |
著者所属(英) |
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en |
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School of Arts and Letters, Meiji University |
著者所属(英) |
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en |
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National Institute of Polar research |
抄録(英) |
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内容記述タイプ |
Other |
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内容記述 |
The process of the vegetation development on glacier moraines was surveyed in the lower stream area of Oobloyah Valley (80°50'N, 82°45'W), Ellesmere Island, high arctic Canada. Four glacier moraines, and an outwash plane with different establishment periods in the proglacial field of Arklio Glacier, were surveyed .The oldest moraine was estimated to have been established during the Full Glacial, ca. 25000-35000 years ago, and the youngest one during the Little Ice Age, ca. 250 years ago. The vegetation properties such as number of species per study plot, cover of vegetation, lichens and bryophytes showed constant increase the moraine age, suggesting directional vegetation development. Changes in the species composition were such that new species successively appeared during the establishment of the moraines without obvious replacement of the species. It was concluded that the manner of the vegetation development was directional-nonreplacement succession even under extreme high arctic environment, differing from the generally accepted view that under an extreme high arctic environment nondirectional-nonreplacement succession prevails. Vegetation physiognomy approached Cassiope tetragona-dominated dwarf shrub heath, which generally prevails in more southern regions than Ellesmere Island. The period required for the vegetation development in the study area was assumed to be quite long, probably at least ca. 20000 years. |
雑誌書誌ID |
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収録物識別子タイプ |
NCID |
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収録物識別子 |
AA11327019 |
書誌情報 |
Polar bioscience
巻 17,
p. 83-94,
発行日 2004-02-01
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出版者 |
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出版者 |
National Institute of Polar Research |