ケニア山における氷河の後退と植生の遷移

DOI Web Site 被引用文献1件 参考文献38件
  • 水野 一晴
    京都大学大学院アジア・アフリカ地域研究研究科

書誌事項

タイトル別名
  • Vegetation Succession in Response to Glacial Recession from 1997 to 2002 on Mt. Kenya
  • ケニアサン ニ オケル ヒョウガ ノ コウタイ ト ショクセイ ノ センイ トクニ 1997ネン カラ 2002ネン ニ オイテ
  • とくに1997年から2002年において

この論文をさがす

抄録

Dramatic changes of glaciers and vegetation are taking place in the glacier-covered high mountains of East Africa. The Tyndall Glacier on Mt. Kenya, which retreated at ca. 3 m yr-1 from 1958 to 1997, retreated more at ca. 10 m yr -1 from 1997 to 2002. Pioneer species such as Senecio keniophytum, Arabis alpina, mosses, lichen, and Agrostis trachyphylla have advanced over areas formerly covered by the glacier. The rate at which this vegetation was migrated up the former bed of the glacier (2.1-4.6 m yr-1 from 1958 to 1997) is similar to the rate of glacial retreat (2.9 m yr-1). In the interval from 1997 to 2002, when the glacier retreated at 9.8 m yr-1, pioneer species advanced at a rapid rate of 6.4-12.2 m yr-1. Larger woody plants such as Senecio keniodendron and Lobelia telekii, which showed no obvious advances before 1997, have advanced quickly since 1997. Rapid glacial retreat has been accompanied by rapid plant colonization. Pioneer species improve soil conditions and habitat for other plants. The distribution of large woody plants such as Senecio keniodendron and Lobelia telekii, which tend to grow in areas that were deglaciated 100 years previously, is not directly controlled by glacial retreat, but reflects different effects of debris flow and outwash, and spatial differences in the clast size of the sedimentary debris at the surface of any given area. For example, Senecio keniodendron grows most abundantly in areas covered by large debris, such as moraines.

収録刊行物

  • 地学雑誌

    地学雑誌 112 (4), 608-619, 2003

    公益社団法人 東京地学協会

被引用文献 (1)*注記

もっと見る

参考文献 (38)*注記

もっと見る

関連プロジェクト

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ