大井川上流崩壊地における岩屑の移動・堆積と植生侵入

• 眞板 秀二

  筑波大学農林工学系

書誌事項

タイトル別名

• The Movement and Deposition of Debris and the Vegetational Invasion on the Iandslide Scars in the Upper Basin of Oi River

抄録

This report deals with the accumulative mechanism of the unstable debris and the vegetationalinvasion on the Iandslide scars in the upper basin of the Oi River.<br>The main results are as follows:<br>1) Itis pointed out that rock fall, debris fall, dry fragments flow, debris avalanche and debris floware main processes of the movement and deposition of rock fragments on the scars. The unstabledebris on the scars are accumulated by these processes. Jupging from the characteristics of eachprocess, it is concluded that rock fall is the most important process.<br>2) Four vegetation types are recogniged on the scars, these are Fujiazami (Cirusium purpuratun)type, Kusakoakaso (Boehmeia tricuspis var. unicuspis) type. Susuki (Miscanthus sinensis) type andWoody plant type.<br>3) The relation shown in Fig.9. between the movement and deposition of rock fargments and the vegetational invasion s obtained. It is clear from Fif.9. that rock fall plays an important role forthe vegetational invason, and debris avalanche or debris flow plays an important role for thedestruction of vegetat on.

収録刊行物

• 砂防学会誌

  砂防学会誌 38 (4), 16-24, 1985

  Japan Society of Erosion Control Engineering

詳細情報

• CRID: 1390001204065984896
• NII論文ID: 130004295236
• DOI: 10.11475/sabo1973.38.4_16
• ISSN: 02868385
• データソース種別:
  • JaLC
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可