2003年台風10号災害における厚別川流域の流木の堆積量と組成

• 佐藤 創

  北海道立林業試験場 砂防学会

• 長坂 有

  北海道立林業試験場

• 浅井 達弘

  北海道立林業試験場

• 寺澤 和彦

  北海道立林業試験場

書誌事項

タイトル別名

• Quantification of the woody debris in Appetsu river basin by Typhoon 0310, Etau
• 2003ネン タイフウ 10ゴウ サイガイ ニ オケル アッペツガワ リュウイキ ノ リュウボク ノ タイセキリョウ ト ソセイ

抄録

We quantified the woody debris on the flood plain of the Appetsu River, watershed area is 287.9 km², by Typhoon 0310, Etau. This typhoon caused heavy damage, especially in the Hidaka and Tokachi districts of Hokkaido. We established 61 study sites in the river basin and investigated the size, species, and freshness of woody debris in a sampling plot in each study site. We used aerial photographs to estimate the volume of woody debris outside the study sites. The volume of woody debris totaled 46, 260 m³. The deposits were greatest in the upper river basin in the northern area. Of the total volume, 76% originated from landslides on mountain slopes or bank erosion, and the remaining 24% was from riparian forests. Of the woody debris, 15% were conifers and the remaining 85% were broadleaf trees. An estimated 74% of the volume came from trees that were living just before Typhoon 0310 struck, and the remainder was old fallen timber. Of the woody debris, 12% of the trunks had diameters under 10 cm, 57% were 10 - 30 cm, 28% were 30 - 50 cm, and 3% were over 50 cm.

収録刊行物

• 砂防学会誌

  砂防学会誌 58 (6), 11-17, 2006

  Japan Society of Erosion Control Engineering

キーワード

• Typhoon No.10 2003 (Etau)
• woody debris
• field investigation
• aerial photograph analysis

詳細情報

• CRID: 1390001204067737088
• NII論文ID: 10017983451
• NII書誌ID: AN0012035X
• DOI: 10.11475/sabo1973.58.6_11
• NDL書誌ID: 7870686
• ISSN: 02868385
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I7870686
• データソース種別:
  • JaLC
  • NDL
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可