Evaluation of Ecosystem Recovery for Revegetation of Rock Slope of Mined-out Quarry using Revegetation Simulation Image

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  • 露天採掘跡残壁の自然回帰型修復緑化における緑化シミュレーションを用いた自然回帰度評価
  • ロテン サイクツ アト ザンヘキ ノ シゼン カイキガタ シュウフク リョッカ ニ オケル リョッカ シミュレーション オ モチイタ シゼン カイキド ヒョウカ

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Abstract

In deciding upon a revegetation plan for ecosystem recovery of rock slope of mined-out quarry, it is necessary to evaluate the degree of ecosystem recovery from a viewpoint of an environmental impact assessment.<BR>Fundamental studies on evaluation of the degree of ecosystem recovery were carried out using revegetation simulation image with tree's height as an index of ecosystem recovery. <BR>First, the landscape evaluation experiments were carried out in the case of trees grow on the berm area only using revegetation simulation image with virtual reality system (VRS). Then the same experiments were carried out in case of tree growth on both berms and the slope area using revegetation simulation image with photomontage. Both experiments were carried out by using rating scale method. The main results obtained in this study are summarized as follows:<BR>1) In case of tree growth on the berm area, the degree of ecosystem recovery increases when height ratio increases. It became clear that the height ratio at the state of almost ecosystem recovery was 1.2. <BR>2) In the case of tree growth on both berms and slope area, the degree of ecosystem recovery increase in proportion to height ratio. It became clear that the height ratio at the state of almost ecosystem recovery was 0.6. <BR>3) In both cases, the degree of ecosystem recovery increases when height ratio increasess. <BR>4) In the case of tree growth on both berms and the slope area, it is possible to shorten the length for ecosystem recovery compared to the tree growth on the berm area only.

Journal

  • Journal of MMIJ

    Journal of MMIJ 124 (3), 166-172, 2008

    The Mining and Materials Processing Institute of Japan

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