森林表土を利用した露天採掘跡残壁の植生基盤造成に関する基礎的研究

書誌事項

タイトル別名
  • Fundamental Study on Plant Growth Base Creation for Revegetation on the Rock Slope of Mined-out Quarry using Forest Top-soil
  • シンリン ヒョウド オ リヨウシタ ロテン サイクツ アト ザンヘキ ノ ショクセイ キバン ゾウセイ ニ カンスル キソテキ ケンキュウ

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抄録

The rock slope of mined-out quarry is very bad condition for revegetation because it is steep and disturbed. However, in order to recover an ecosystem of mined-out quarry, it is necessary to create a plant growth base on the rock slope and allowing trees to grow.<BR>We carried out some fundamental studies on the plant growth base creation on the rock slope ,using forest top-soil. First, we researched the thickness of plant growth base and base soil properties at the site of the rock slope in the forest area. Then we carried out the stability of plant growth base soil on the rock slope by using plane slide stability analysis formula.<BR>The main results obtained in this study are as follows:<BR>1) The thickness of 10-15cm plant growth base soil is required in order for tree growth.<BR>2) In the conventional plane slide stability analysis, the thickness of base soil expressed by perpendicular thickness was changed into the method of expressing by actual thickness.<BR>3) The thickness of plant growth base which can be created on the base rock slope inclination of 60 degrees is 20cm.<BR>4) The cohesion of soil is indispensable for the plant growth base;if cohesion of the base soil is zero, we cannot create the plant growth base on the rock slope using this soil.

収録刊行物

  • 資源と素材

    資源と素材 123 (6/7), 329-335, 2007

    一般社団法人 資源・素材学会

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