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タイトル
  • ja 河川の水理条件による河道内樹木の稚樹定着抑制
  • en CONTROL OF SEEDLING ESTABLISHMENT IN RIVER CHANNELS BY FLUVIAL HYDRAULICS MANAGEMENT
作成者
    • ja 伊木, 千絵美 en IKI, Chiemi ja-Kana イキ, チエミ
    • ja 矢部, 浩規 en YABE, Hiroki ja-Kana ヤベ, ヒロキ
    • ja 中津川, 誠 en NAKATSUGAWA, Makoto ja-Kana ナカツガワ, マコト
アクセス権 open access
権利情報
  • ja Copyright 2005 土木学会 ダウンロードを含むこの著作物の利用は、著作権法の私的使用及び引用の範囲に限り認められます。その範囲外の利用については、土木学会 の承諾が必要です。
主題
  • NDC 510
  • Other en Fluvial hydraulics
  • Other en seedling in river channel
  • Other en willow
  • Other en flooding frequency
内容注記
  • Other application/pdf
  • Abstract en We identified a site on the Toyohira River in Sapporo, Hokkaido, where the area of mid-channel trees is expanding. This identification was done based on aerial-photograph-based drawings indicating changes in tree height and area of mid-channel trees between 1972 (the year before improvement work, when channel trees were few ) and 1995 and 2003 (years after the work was complete). Based on a cross-sectional plan of the side, we examined changes in the riverbed topography and height difference between 185-day water level and maximum riverbed height in the low-water channel for each year. Furthermore, in the present topography, we estimated the age of seedlings along a measurement line on the bare part of sandbars distributed with seedlings, and determined inundation frequency during the period of seed dispersal, inundation frequency during the period of tree growth, maximum annual non-dimensional tractive force, and change in tree height between 2002 and 2004 when seedlings began to establish themselves. Then we conducted factor analysis on seedling habitats and environment. We found that inundation frequency during the period of seed dispersal affects the establishment of the seedlings. This suggests that adjustment of the flow volume in the period may control the establishment of seedlings.
出版者 ja 土木学会
日付
    Issued2005-06
言語
  • jpn
資源タイプ journal article
出版タイプ VoR
資源識別子 HDL http://hdl.handle.net/10258/1541 , URI https://muroran-it.repo.nii.ac.jp/records/6395
関連
  • NCID BA67519158
  • isIdenticalTo NAID 120004681075
収録誌情報
  • ja 河川技術論文集
  • 巻11 開始ページ505 終了ページ510
ファイル
コンテンツ更新日時 2024-02-16