MISC

1998年

元国指定天然記念物静狩湿原の変遷過程と現存植生

植生学会誌
  • 冨士田 裕子
  • ,
  • 橘 ヒサ子

15
1
開始ページ
7
終了ページ
17
記述言語
日本語
掲載種別
DOI
10.15031/vegsci.15.7
出版者・発行元
植生学会

Shizukari Mire is situated along the south-western Pacific coast of Hokkaido. Once it had a beautiful and excellent landscape due to various community types and high species diversity with many ponds and floating-islands. It was designated as a national natural monument in 1922. But this status was cancelled in 1951. Analysis of old topographical maps and documents revealed that, the reason for the cancellation was not the devastation of the mire but the pressure to develop agricultural lands. The size of the mire was 263 ha in 1917. In 1953, two years after the cancellation, it became 221 ha. Then the mire was converted rapidly into agricultural land and by 1996 it was reduced to only 34 ha. The remaining mire is the center part of the former bog and includes some pond vegetation. Two substitutional community types are recorded at the hollow, the Rhynchospora alba - Drosera rotundifolia community and the Rhynchospora fauriei - Rhynchospora alba community. Most of the remaining mire had been covered with lawn vegetation which has changed into substitutional vegetation, the Rhus trichocarpa - Moliniopsis japonica community by drainage and theft. The conservation and rehabilitation of the mire are needed immediately because the succession is continuing and the remaining mire is in very dangerous condition.

リンク情報
DOI
https://doi.org/10.15031/vegsci.15.7
CiNii Articles
http://ci.nii.ac.jp/naid/110008145205
CiNii Books
http://ci.nii.ac.jp/ncid/AA11347548
ID情報
  • DOI : 10.15031/vegsci.15.7
  • ISSN : 1342-2448
  • CiNii Articles ID : 110008145205
  • CiNii Books ID : AA11347548

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