流域GISを援用した総合環境評価モデルによる水環境改善施策の効果分析  [in Japanese] AN ANALYSIS OF WATER ENVIRONMENTAL IMPROVEMENT MEASURES WITH COMPREHENSIVE ENVIRONMENTAL ASSESSMENT MODEL  [in Japanese]

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Abstract

環境改善施策を評価する場合, 施策による環境改善効果と市場経済への影響の両者を把握する必要がある. 近年, 水環境改善施策の環境評価はGISを用いて詳細に行なわれており, これに合わせた詳細な経済評価が求められている. 筆者らはこれまでに流域GISを援用した流域環境評価モデルと流域経済評価モデルを統合した総合環境評価モデルを構築してきた. 本研究ではこのモデルを用いて, 長良川流域を対象に農業施肥の削減と森林管理の強化という水環境改善施策に対する総合評価を行い, 環境改善による便益や市場経済便益 (不便益) を算出し, 施策実施地域, 施策対象業種, 上下流間の便益帰着構造などを分析することにより.効率的な水環境改善施策に向けた政策的示唆を行う.

It is necessary to evaluate both of the effect of environmental improvement and the impact of market economy for assessing the environment improvement measures. Recently, the physical assessment of water environment improvement measures has been performed spatially in detail by the technological advance and the expanded database of GIS. Therefore, we have built the comprehensive environmental assessment model of combining the basin economic assessment model with the basin environmental assessment model that is able to evaluate physically the basin environmental condition until now. In this study, we assess several water environment improvement measures those are the reduction of chemical fertilizer on agriculture and the reinforcement of forest management in the Nagara river basin with this comprehensive environmental assessment model. The implication for realizing the efficient water environmental improvement measure is shown through analyzing the target area, the target sector and the benefit incident structure between upper and down stream regions.

Journal

  • ENVIRONMENTAL SYSTEMS RESEARCH

    ENVIRONMENTAL SYSTEMS RESEARCH (34), 553-561, 2006

    Japan Society of Civil Engineers

Codes

  • NII Article ID (NAID)
    130003775304
  • Text Lang
    JPN
  • ISSN
    1345-9597
  • Data Source
    J-STAGE 
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